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Safemoon v1 vs v2

Created 3 years agoDiff never expires

686 lines

704 lines

/**

*Submitted for verification at BscScan.com on 2021-03-01

*Submitted for verification at BscScan.com on 2022-01-02

/**

*Submitted for verification at BscScan.com on 2021-03-01

*Submitted for verification at BscScan.com on 2021-12-26

/**

#BEE

#LIQ+#RFI+#SHIB+#DOGE = #BEE

#SAFEMOON features:

3% fee auto add to the liquidity pool to locked forever when selling

2% fee auto distribute to all holders

I created a black hole so #Bee token will deflate itself in supply with every transaction

50% Supply is burned at start.

pragma solidity ^0.6.12;

// SPDX-License-Identifier: Unlicensed

pragma experimental ABIEncoderV2;

interface IERC20 {

function totalSupply() external view returns (uint256);

Text moved to lines 489-492

/**

* @dev Returns the amount of tokens owned by `account`.

function balanceOf(address account) external view returns (uint256);

library SafeMathUpgradeable {

/**

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* @dev Moves `amount` tokens from the caller's account to `recipient`.

* @dev Returns the addition of two unsigned integers, with an overflow flag.

* Returns a boolean value indicating whether the operation succeeded.

* Emits a {Transfer} event.

* _Available since v3.4._

function transfer(address recipient, uint256 amount) external returns (bool);

function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {

uint256 c = a + b;

if (c < a) return (false, 0);

return (true, c);

}

/**

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* @dev Returns the remaining number of tokens that `spender` will be

* @dev Returns the substraction of two unsigned integers, with an overflow flag.

* allowed to spend on behalf of `owner` through {transferFrom}. This is

* zero by default.

* This value changes when {approve} or {transferFrom} are called.

* _Available since v3.4._

function allowance(address owner, address spender) external view returns (uint256);

function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {

if (b > a) return (false, 0);

return (true, a - b);

}

/**

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* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.

* @dev Returns the multiplication of two unsigned integers, with an overflow flag.

* Returns a boolean value indicating whether the operation succeeded.

* IMPORTANT: Beware that changing an allowance with this method brings the risk

* that someone may use both the old and the new allowance by unfortunate

* transaction ordering. One possible solution to mitigate this race

* condition is to first reduce the spender's allowance to 0 and set the

* desired value afterwards:

* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729

* Emits an {Approval} event.

* _Available since v3.4._

function approve(address spender, uint256 amount) external returns (bool);

function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {

Text moved with changes from lines 169-173 (90.3% similarity)

// Gas optimization: this is cheaper than requiring 'a' not being zero, but the

// benefit is lost if 'b' is also tested.

// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522

if (a == 0) return (true, 0);

uint256 c = a * b;

if (c / a != b) return (false, 0);

return (true, c);

}

/**

Text moved to lines 529-533

* @dev Moves `amount` tokens from `sender` to `recipient` using the

* @dev Returns the division of two unsigned integers, with a division by zero flag.

* allowance mechanism. `amount` is then deducted from the caller's

* allowance.

* Returns a boolean value indicating whether the operation succeeded.

* Emits a {Transfer} event.

* _Available since v3.4._

function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);

function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {

if (b == 0) return (false, 0);

return (true, a / b);

}

/**

* @dev Emitted when `value` tokens are moved from one account (`from`) to

* @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.

* another (`to`).

* Note that `value` may be zero.

* _Available since v3.4._

event Transfer(address indexed from, address indexed to, uint256 value);

function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {

if (b == 0) return (false, 0);

return (true, a % b);

}

/**

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* @dev Emitted when the allowance of a `spender` for an `owner` is set by

* a call to {approve}. `value` is the new allowance.

event Approval(address indexed owner, address indexed spender, uint256 value);

}

/**

* @dev Wrappers over Solidity's arithmetic operations with added overflow

* checks.

* Arithmetic operations in Solidity wrap on overflow. This can easily result

* in bugs, because programmers usually assume that an overflow raises an

* error, which is the standard behavior in high level programming languages.

* `SafeMath` restores this intuition by reverting the transaction when an

* operation overflows.

* Using this library instead of the unchecked operations eliminates an entire

* class of bugs, so it's recommended to use it always.

library SafeMath {

/**

* @dev Returns the addition of two unsigned integers, reverting on

* overflow.

* Counterpart to Solidity's `+` operator.

* Requirements:

* - Addition cannot overflow.

function add(uint256 a, uint256 b) internal pure returns (uint256) {

uint256 c = a + b;

require(c >= a, "SafeMath: addition overflow");

return c;

}

/**

* @dev Returns the subtraction of two unsigned integers, reverting on

* overflow (when the result is negative).

* Counterpart to Solidity's `-` operator.

* Requirements:

* - Subtraction cannot overflow.

function sub(uint256 a, uint256 b) internal pure returns (uint256) {

return sub(a, b, "SafeMath: subtraction overflow");

require(b <= a, "SafeMath: subtraction overflow");

}

return a - b;

Text moved with changes to lines 155-167 (93.0% similarity)

/**

* @dev Returns the subtraction of two unsigned integers, reverting with custom message on

* overflow (when the result is negative).

* Counterpart to Solidity's `-` operator.

* Requirements:

* - Subtraction cannot overflow.

function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {

require(b <= a, errorMessage);

uint256 c = a - b;

return c;

}

/**

* @dev Returns the multiplication of two unsigned integers, reverting on

* overflow.

* Counterpart to Solidity's `*` operator.

* Requirements:

* - Multiplication cannot overflow.

function mul(uint256 a, uint256 b) internal pure returns (uint256) {

Text moved with changes to lines 41-45 (90.3% similarity)

// Gas optimization: this is cheaper than requiring 'a' not being zero, but the

if (a == 0) return 0;

// benefit is lost if 'b' is also tested.

// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522

if (a == 0) {

return 0;

}

uint256 c = a * b;

require(c / a == b, "SafeMath: multiplication overflow");

return c;

}

/**

* @dev Returns the integer division of two unsigned integers. Reverts on

* @dev Returns the integer division of two unsigned integers, reverting on

* division by zero. The result is rounded towards zero.

* Counterpart to Solidity's `/` operator. Note: this function uses a

* `revert` opcode (which leaves remaining gas untouched) while Solidity

* uses an invalid opcode to revert (consuming all remaining gas).

* Requirements:

* - The divisor cannot be zero.

function div(uint256 a, uint256 b) internal pure returns (uint256) {

return div(a, b, "SafeMath: division by zero");

require(b > 0, "SafeMath: division by zero");

return a / b;

}

/**

* @dev Returns the integer division of two unsigned integers. Reverts with custom message on

* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),

Text moved with changes from lines 220-226 (98.9% similarity)

* reverting when dividing by zero.

* Counterpart to Solidity's `%` operator. This function uses a `revert`

* opcode (which leaves remaining gas untouched) while Solidity uses an

* invalid opcode to revert (consuming all remaining gas).

* Requirements:

Text moved with changes from lines 228-231 (97.4% similarity)

* - The divisor cannot be zero.

function mod(uint256 a, uint256 b) internal pure returns (uint256) {

require(b > 0, "SafeMath: modulo by zero");

return a % b;

}

/**

* @dev Returns the subtraction of two unsigned integers, reverting with custom message on

* overflow (when the result is negative).

Text moved with changes from lines 141-153 (93.0% similarity)

* CAUTION: This function is deprecated because it requires allocating memory for the error

* message unnecessarily. For custom revert reasons use {trySub}.

* Counterpart to Solidity's `-` operator.

* Requirements:

* - Subtraction cannot overflow.

function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {

require(b <= a, errorMessage);

return a - b;

Text moved with changes from lines 232-235 (97.0% similarity)

}

/**

* @dev Returns the integer division of two unsigned integers, reverting with custom message on

* division by zero. The result is rounded towards zero.

* CAUTION: This function is deprecated because it requires allocating memory for the error

* message unnecessarily. For custom revert reasons use {tryDiv}.

* Counterpart to Solidity's `/` operator. Note: this function uses a

* `revert` opcode (which leaves remaining gas untouched) while Solidity

* uses an invalid opcode to revert (consuming all remaining gas).

* Requirements:

* - The divisor cannot be zero.

function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {

require(b > 0, errorMessage);

uint256 c = a / b;

return a / b;

// assert(a == b * c + a % b); // There is no case in which this doesn't hold

return c;

}

/**

* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),

Text moved with changes to lines 137-143 (98.9% similarity)

* Reverts when dividing by zero.

* reverting with custom message when dividing by zero.

* Counterpart to Solidity's `%` operator. This function uses a `revert`

* opcode (which leaves remaining gas untouched) while Solidity uses an

* invalid opcode to revert (consuming all remaining gas).

* Requirements:

Text moved with changes to lines 145-148 (97.4% similarity)

* - The divisor cannot be zero.

* CAUTION: This function is deprecated because it requires allocating memory for the error

* message unnecessarily. For custom revert reasons use {tryMod}.

function mod(uint256 a, uint256 b) internal pure returns (uint256) {

return mod(a, b, "SafeMath: modulo by zero");

Text moved with changes to lines 168-171 (97.0% similarity)

}

/**

* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),

* Reverts with custom message when dividing by zero.

* Counterpart to Solidity's `%` operator. This function uses a `revert`

* opcode (which leaves remaining gas untouched) while Solidity uses an

* invalid opcode to revert (consuming all remaining gas).

* Requirements:

* - The divisor cannot be zero.

function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {

require(b != 0, errorMessage);

require(b > 0, errorMessage);

return a % b;

}

abstract contract Context {

library AddressUpgradeable {

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function _msgSender() internal view virtual returns (address payable) {

return msg.sender;

}

function _msgData() internal view virtual returns (bytes memory) {

this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691

return msg.data;

}

/**

* @dev Collection of functions related to the address type

library Address {

/**

* @dev Returns true if `account` is a contract.

* [IMPORTANT]

* ====

* It is unsafe to assume that an address for which this function returns

* false is an externally-owned account (EOA) and not a contract.

* Among others, `isContract` will return false for the following

* types of addresses:

* - an externally-owned account

* - a contract in construction

* - an address where a contract will be created

* - an address where a contract lived, but was destroyed

* ====

function isContract(address account) internal view returns (bool) {

// According to EIP-1052, 0x0 is the value returned for not-yet created accounts

// This method relies on extcodesize, which returns 0 for contracts in

// and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned

// construction, since the code is only stored at the end of the

// for accounts without code, i.e. `keccak256('')`

// constructor execution.

bytes32 codehash;

bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;

uint256 size;

// solhint-disable-next-line no-inline-assembly

assembly { codehash := extcodehash(account) }

assembly { size := extcodesize(account) }

return (codehash != accountHash && codehash != 0x0);

return size > 0;

}

/**

* @dev Replacement for Solidity's `transfer`: sends `amount` wei to

* `recipient`, forwarding all available gas and reverting on errors.

* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost

* of certain opcodes, possibly making contracts go over the 2300 gas limit

* imposed by `transfer`, making them unable to receive funds via

* `transfer`. {sendValue} removes this limitation.

* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].

* IMPORTANT: because control is transferred to `recipient`, care must be

* taken to not create reentrancy vulnerabilities. Consider using

* {ReentrancyGuard} or the

* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].

function sendValue(address payable recipient, uint256 amount) internal {

require(address(this).balance >= amount, "Address: insufficient balance");

// solhint-disable-next-line avoid-low-level-calls, avoid-call-value

(bool success, ) = recipient.call{ value: amount }("");

require(success, "Address: unable to send value, recipient may have reverted");

}

/**

* @dev Performs a Solidity function call using a low level `call`. A

* plain`call` is an unsafe replacement for a function call: use this

* function instead.

* If `target` reverts with a revert reason, it is bubbled up by this

* function (like regular Solidity function calls).

* Returns the raw returned data. To convert to the expected return value,

* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].

* Requirements:

* - `target` must be a contract.

* - calling `target` with `data` must not revert.

* _Available since v3.1._

function functionCall(address target, bytes memory data) internal returns (bytes memory) {

return functionCall(target, data, "Address: low-level call failed");

}

/**

* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with

* `errorMessage` as a fallback revert reason when `target` reverts.

* _Available since v3.1._

function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {

return _functionCallWithValue(target, data, 0, errorMessage);

return functionCallWithValue(target, data, 0, errorMessage);

}

/**

* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],

* but also transferring `value` wei to `target`.

* Requirements:

* - the calling contract must have an ETH balance of at least `value`.

* - the called Solidity function must be `payable`.

* _Available since v3.1._

function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {

return functionCallWithValue(target, data, value, "Address: low-level call with value failed");

}

/**

* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but

* with `errorMessage` as a fallback revert reason when `target` reverts.

* _Available since v3.1._

function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {

require(address(this).balance >= value, "Address: insufficient balance for call");

return _functionCallWithValue(target, data, value, errorMessage);

}

function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {

require(isContract(target), "Address: call to non-contract");

// solhint-disable-next-line avoid-low-level-calls

(bool success, bytes memory returndata) = target.call{ value: weiValue }(data);

(bool success, bytes memory returndata) = target.call{ value: value }(data);

return _verifyCallResult(success, returndata, errorMessage);

}

/**

* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],

* but performing a static call.

* _Available since v3.3._

function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {

return functionStaticCall(target, data, "Address: low-level static call failed");

}

/**

* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],

* but performing a static call.

* _Available since v3.3._

function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) {

require(isContract(target), "Address: static call to non-contract");

// solhint-disable-next-line avoid-low-level-calls

(bool success, bytes memory returndata) = target.staticcall(data);

return _verifyCallResult(success, returndata, errorMessage);

}

function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) {

if (success) {

return returndata;

} else {

// Look for revert reason and bubble it up if present

if (returndata.length > 0) {

// The easiest way to bubble the revert reason is using memory via assembly

// solhint-disable-next-line no-inline-assembly

assembly {

let returndata_size := mload(returndata)

revert(add(32, returndata), returndata_size)

}

} else {

revert(errorMessage);

}

/**

abstract contract Initializable {

* @dev Contract module which provides a basic access control mechanism, where

* there is an account (an owner) that can be granted exclusive access to

/**

* specific functions.

* @dev Indicates that the contract has been initialized.

* By default, the owner account will be the one that deploys the contract. This

bool private _initialized;

* can later be changed with {transferOwnership}.

/**

* This module is used through inheritance. It will make available the modifier

* @dev Indicates that the contract is in the process of being initialized.

* `onlyOwner`, which can be applied to your functions to restrict their use to

* the owner.

bool private _initializing;

contract Ownable is Context {

/**

* @dev Modifier to protect an initializer function from being invoked twice.

modifier initializer() {

require(_initializing || _isConstructor() || !_initialized, "Initializable: contract is already initialized");

bool isTopLevelCall = !_initializing;

if (isTopLevelCall) {

_initializing = true;

_initialized = true;

}

if (isTopLevelCall) {

_initializing = false;

}

/// @dev Returns true if and only if the function is running in the constructor

function _isConstructor() private view returns (bool) {

return !AddressUpgradeable.isContract(address(this));

}

abstract contract ContextUpgradeable is Initializable {

function __Context_init() internal initializer {

__Context_init_unchained();

}

function __Context_init_unchained() internal initializer {

}

Text moved from lines 253-260

function _msgSender() internal view virtual returns (address payable) {

return msg.sender;

}

function _msgData() internal view virtual returns (bytes memory) {

this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691

return msg.data;

}

uint256[50] private __gap;

}

abstract contract OwnableUpgradeable is Initializable, ContextUpgradeable {

address private _owner;

address private _previousOwner;

uint256 private _lockTime;

event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

/**

* @dev Initializes the contract setting the deployer as the initial owner.

constructor () internal {

function __Ownable_init() internal initializer {

__Context_init_unchained();

__Ownable_init_unchained();

}

function __Ownable_init_unchained() internal initializer {

address msgSender = _msgSender();

_owner = msgSender;

emit OwnershipTransferred(address(0), msgSender);

}

/**

* @dev Returns the address of the current owner.

function owner() public view returns (address) {

function owner() public view virtual returns (address) {

return _owner;

}

/**

* @dev Throws if called by any account other than the owner.

modifier onlyOwner() {

require(_owner == _msgSender(), "Ownable: caller is not the owner");

require(owner() == _msgSender(), "Ownable: caller is not the owner");

}

/**

* @dev Leaves the contract without owner. It will not be possible to call

* `onlyOwner` functions anymore. Can only be called by the current owner.

* NOTE: Renouncing ownership will leave the contract without an owner,

* thereby removing any functionality that is only available to the owner.

function renounceOwnership() public virtual onlyOwner {

emit OwnershipTransferred(_owner, address(0));

_owner = address(0);

}

/**

* @dev Transfers ownership of the contract to a new account (`newOwner`).

* Can only be called by the current owner.

function transferOwnership(address newOwner) public virtual onlyOwner {

require(newOwner != address(0), "Ownable: new owner is the zero address");

emit OwnershipTransferred(_owner, newOwner);

_owner = newOwner;

}

uint256[49] private __gap;

}

function geUnlockTime() public view returns (uint256) {

interface ISafemoon {

return _lockTime;

/**

}

* @dev Returns the amount of tokens in existence.

function totalSupply() external view returns (uint256);

Text moved from lines 28-31

//Locks the contract for owner for the amount of time provided

/**

function lock(uint256 time) public virtual onlyOwner {

* @dev Returns the amount of tokens owned by `account`.

_previousOwner = _owner;

_owner = address(0);

function balanceOf(address account) external view returns (uint256);

_lockTime = now + time;

emit OwnershipTransferred(_owner, address(0));

/**

Text moved from lines 34-36

}

* @dev Moves `amount` tokens from the caller's account to `recipient`.

//Unlocks the contract for owner when _lockTime is exceeds

* Returns a boolean value indicating whether the operation succeeded.

function unlock() public virtual {

require(_previousOwner == msg.sender, "You don't have permission to unlock");

* Emits a {Transfer} event.

require(now > _lockTime , "Contract is locked until 7 days");

emit OwnershipTransferred(_owner, _previousOwner);

function transfer(address recipient, uint256 amount) external returns (bool);

_owner = _previousOwner;

}

/**

Text moved from lines 43-45

* @dev Returns the remaining number of tokens that `spender` will be

* allowed to spend on behalf of `owner` through {transferFrom}. This is

* zero by default.

* This value changes when {approve} or {transferFrom} are called.

function allowance(address owner, address spender) external view returns (uint256);

/**

Text moved from lines 52-61

* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.

* Returns a boolean value indicating whether the operation succeeded.

* IMPORTANT: Beware that changing an allowance with this method brings the risk

* that someone may use both the old and the new allowance by unfortunate

* transaction ordering. One possible solution to mitigate this race

* condition is to first reduce the spender's allowance to 0 and set the

* desired value afterwards:

* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729

* Emits an {Approval} event.

function approve(address spender, uint256 amount) external returns (bool);

/**

Text moved from lines 68-72

* @dev Moves `amount` tokens from `sender` to `recipient` using the

* allowance mechanism. `amount` is then deducted from the caller's

* allowance.

* Returns a boolean value indicating whether the operation succeeded.

* Emits a {Transfer} event.

function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);

/** @dev Creates `amount` tokens and assigns them to `account`, increasing

* the total supply.

* Emits a {Transfer} event with `from` set to the zero address.

* Requirements:

* - `account` cannot be the zero address.

function migrate(address account, uint256 amount) external;

function isMigrationStarted() external view returns (bool);

/**

* @dev Emitted when `value` tokens are moved from one account (`from`) to

* another (`to`).

* Note that `value` may be zero.

event Transfer(address indexed from, address indexed to, uint256 value);

/**

Text moved from lines 87-90

* @dev Emitted when the allowance of a `spender` for an `owner` is set by

* a call to {approve}. `value` is the new allowance.

event Approval(address indexed owner, address indexed spender, uint256 value);

}

// pragma solidity >=0.5.0;

interface IUniswapV2Factory {

event PairCreated(address indexed token0, address indexed token1, address pair, uint);

function feeTo() external view returns (address);

function feeToSetter() external view returns (address);

function getPair(address tokenA, address tokenB) external view returns (address pair);

function allPairs(uint) external view returns (address pair);

function allPairsLength() external view returns (uint);

function createPair(address tokenA, address tokenB) external returns (address pair);

function setFeeTo(address) external;

function setFeeToSetter(address) external;

}

// pragma solidity >=0.5.0;

interface IUniswapV2Pair {

event Approval(address indexed owner, address indexed spender, uint value);

event Transfer(address indexed from, address indexed to, uint value);

function name() external pure returns (string memory);

function symbol() external pure returns (string memory);

function decimals() external pure returns (uint8);

function totalSupply() external view returns (uint);

function balanceOf(address owner) external view returns (uint);

function allowance(address owner, address spender) external view returns (uint);

function approve(address spender, uint value) external returns (bool);

function transfer(address to, uint value) external returns (bool);

function transferFrom(address from, address to, uint value) external returns (bool);

function DOMAIN_SEPARATOR() external view returns (bytes32);

function PERMIT_TYPEHASH() external pure returns (bytes32);

function nonces(address owner) external view returns (uint);

function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;

event Mint(address indexed sender, uint amount0, uint amount1);

event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);

event Swap(

address indexed sender,

uint amount0In,

uint amount1In,

uint amount0Out,

uint amount1Out,

address indexed to

);

event Sync(uint112 reserve0, uint112 reserve1);

function MINIMUM_LIQUIDITY() external pure returns (uint);

function factory() external view returns (address);

function token0() external view returns (address);

function token1() external view returns (address);

function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);

function price0CumulativeLast() external view returns (uint);

function price1CumulativeLast() external view returns (uint);

function kLast() external view returns (uint);

function mint(address to) external returns (uint liquidity);

function burn(address to) external returns (uint amount0, uint amount1);

function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;

function skim(address to) external;

function sync() external;

function initialize(address, address) external;

}

// pragma solidity >=0.6.2;

interface IUniswapV2Router01 {

function factory() external pure returns (address);

function WETH() external pure returns (address);

function addLiquidity(

address tokenA,

address tokenB,

uint amountADesired,

uint amountBDesired,

uint amountAMin,

uint amountBMin,

address to,

uint deadline

) external returns (uint amountA, uint amountB, uint liquidity);

function addLiquidityETH(

address token,

uint amountTokenDesired,

uint amountTokenMin,

uint amountETHMin,

address to,

uint deadline

) external payable returns (uint amountToken, uint amountETH, uint liquidity);

function removeLiquidity(

address tokenA,

address tokenB,

uint liquidity,

uint amountAMin,

uint amountBMin,

address to,

uint deadline

) external returns (uint amountA, uint amountB);

function removeLiquidityETH(

address token,

uint liquidity,

uint amountTokenMin,

uint amountETHMin,

address to,

uint deadline

) external returns (uint amountToken, uint amountETH);

function removeLiquidityWithPermit(

address tokenA,

address tokenB,

uint liquidity,

uint amountAMin,

uint amountBMin,

address to,

uint deadline,

bool approveMax, uint8 v, bytes32 r, bytes32 s

) external returns (uint amountA, uint amountB);

function removeLiquidityETHWithPermit(

address token,

uint liquidity,

uint amountTokenMin,

uint amountETHMin,

address to,

uint deadline,

bool approveMax, uint8 v, bytes32 r, bytes32 s

) external returns (uint amountToken, uint amountETH);

function swapExactTokensForTokens(

uint amountIn,

uint amountOutMin,

address[] calldata path,

address to,

uint deadline

) external returns (uint[] memory amounts);

) external returns (u

function swapTokensForExactTokens(

uint amountOut,

uint amountInMax,

address[] calldata path,

address to,

uint deadline

) external returns (uint[] memory amounts);

function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)

external

payable

returns (uint[] memory amounts);

function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)

external

returns (uint[] memory amounts);

function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)

external

returns (uint[] memory amounts);

function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)

external

payable

returns (uint[] memory amounts);

function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);

function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);

function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);

function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);

function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);

}

// pragma solidity >=0.6.2;

interface IUniswapV2Router02 is IUniswapV2Router01 {

function removeLiquidityETHSupportingFeeOnTransferTokens(

address token,

uint liquidity,

uint amountTokenMin,

uint amountETHMin,

address to,

uint deadline

) external returns (uint amountETH);

function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(

address token,

uint liquidity,

uint amountTokenMin,

uint amountETHMin,

address to,

uint deadline,

bool approveMax, uint8 v, bytes32 r, bytes32 s

) external returns (uint amountETH);

function swapExactTokensForTokensSupportingFeeOnTransferTokens(

uint amountIn,

uint amountOutMin,

address[] calldata path,

address to,

uint deadline

) external;

function

Diffs guardadas

Texto original

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/**
 *Submitted for verification at BscScan.com on 2021-03-01
*/

/**
  
   #BEE
   
   #LIQ+#RFI+#SHIB+#DOGE = #BEE
   #SAFEMOON features:
   3% fee auto add to the liquidity pool to locked forever when selling
   2% fee auto distribute to all holders
   I created a black hole so #Bee token will deflate itself in supply with every transaction
   50% Supply is burned at start.
   
 */

pragma solidity ^0.6.12;
// SPDX-License-Identifier: Unlicensed
interface IERC20 {

function totalSupply() external view returns (uint256);

/**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

/**
     * @dev Moves `amount` tokens from the caller's account to `recipient`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address recipient, uint256 amount) external returns (bool);

/**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

/**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

/**
     * @dev Moves `amount` tokens from `sender` to `recipient` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);

/**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

/**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);
}

/**
 * @dev Wrappers over Solidity's arithmetic operations with added overflow
 * checks.
 *
 * Arithmetic operations in Solidity wrap on overflow. This can easily result
 * in bugs, because programmers usually assume that an overflow raises an
 * error, which is the standard behavior in high level programming languages.
 * `SafeMath` restores this intuition by reverting the transaction when an
 * operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 */
 
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");

return c;
    }

/**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return sub(a, b, "SafeMath: subtraction overflow");
    }

/**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        uint256 c = a - b;

return c;
    }

/**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     *
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) {
            return 0;
        }

uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");

return c;
    }

/**
     * @dev Returns the integer division of two unsigned integers. Reverts on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return div(a, b, "SafeMath: division by zero");
    }

/**
     * @dev Returns the integer division of two unsigned integers. Reverts with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        uint256 c = a / b;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold

return c;
    }

/**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return mod(a, b, "SafeMath: modulo by zero");
    }

/**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts with custom message when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }
}

abstract contract Context {
    function _msgSender() internal view virtual returns (address payable) {
        return msg.sender;
    }

function _msgData() internal view virtual returns (bytes memory) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // According to EIP-1052, 0x0 is the value returned for not-yet created accounts
        // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
        // for accounts without code, i.e. `keccak256('')`
        bytes32 codehash;
        bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
        // solhint-disable-next-line no-inline-assembly
        assembly { codehash := extcodehash(account) }
        return (codehash != accountHash && codehash != 0x0);
    }

/**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

// solhint-disable-next-line avoid-low-level-calls, avoid-call-value
        (bool success, ) = recipient.call{ value: amount }("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

/**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain`call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
      return functionCall(target, data, "Address: low-level call failed");
    }

/**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
        return _functionCallWithValue(target, data, 0, errorMessage);
    }

/**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

/**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        return _functionCallWithValue(target, data, value, errorMessage);
    }

function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
        require(isContract(target), "Address: call to non-contract");

// solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly

// solhint-disable-next-line no-inline-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
contract Ownable is Context {
    address private _owner;
    address private _previousOwner;
    uint256 private _lockTime;

event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

/**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor () internal {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

/**
     * @dev Returns the address of the current owner.
     */
    function owner() public view returns (address) {
        return _owner;
    }

/**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(_owner == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

/**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }

/**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }

function geUnlockTime() public view returns (uint256) {
        return _lockTime;
    }

//Locks the contract for owner for the amount of time provided
    function lock(uint256 time) public virtual onlyOwner {
        _previousOwner = _owner;
        _owner = address(0);
        _lockTime = now + time;
        emit OwnershipTransferred(_owner, address(0));
    }
    
    //Unlocks the contract for owner when _lockTime is exceeds
    function unlock() public virtual {
        require(_previousOwner == msg.sender, "You don't have permission to unlock");
        require(now > _lockTime , "Contract is locked until 7 days");
        emit OwnershipTransferred(_owner, _previousOwner);
        _owner = _previousOwner;
    }
}

// pragma solidity >=0.5.0;

interface IUniswapV2Factory {
    event PairCreated(address indexed token0, address indexed token1, address pair, uint);

function feeTo() external view returns (address);
    function feeToSetter() external view returns (address);

function getPair(address tokenA, address tokenB) external view returns (address pair);
    function allPairs(uint) external view returns (address pair);
    function allPairsLength() external view returns (uint);

function createPair(address tokenA, address tokenB) external returns (address pair);

function setFeeTo(address) external;
    function setFeeToSetter(address) external;
}

// pragma solidity >=0.5.0;

interface IUniswapV2Pair {
    event Approval(address indexed owner, address indexed spender, uint value);
    event Transfer(address indexed from, address indexed to, uint value);

function name() external pure returns (string memory);
    function symbol() external pure returns (string memory);
    function decimals() external pure returns (uint8);
    function totalSupply() external view returns (uint);
    function balanceOf(address owner) external view returns (uint);
    function allowance(address owner, address spender) external view returns (uint);

function approve(address spender, uint value) external returns (bool);
    function transfer(address to, uint value) external returns (bool);
    function transferFrom(address from, address to, uint value) external returns (bool);

function DOMAIN_SEPARATOR() external view returns (bytes32);
    function PERMIT_TYPEHASH() external pure returns (bytes32);
    function nonces(address owner) external view returns (uint);

function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;

event Mint(address indexed sender, uint amount0, uint amount1);
    event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
    event Swap(
        address indexed sender,
        uint amount0In,
        uint amount1In,
        uint amount0Out,
        uint amount1Out,
        address indexed to
    );
    event Sync(uint112 reserve0, uint112 reserve1);

function MINIMUM_LIQUIDITY() external pure returns (uint);
    function factory() external view returns (address);
    function token0() external view returns (address);
    function token1() external view returns (address);
    function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
    function price0CumulativeLast() external view returns (uint);
    function price1CumulativeLast() external view returns (uint);
    function kLast() external view returns (uint);

function mint(address to) external returns (uint liquidity);
    function burn(address to) external returns (uint amount0, uint amount1);
    function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
    function skim(address to) external;
    function sync() external;

function initialize(address, address) external;
}

// pragma solidity >=0.6.2;

interface IUniswapV2Router01 {
    function factory() external pure returns (address);
    function WETH() external pure returns (address);

function addLiquidity(
        address tokenA,
        address tokenB,
        uint amountADesired,
        uint amountBDesired,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline
    ) external returns (uint amountA, uint amountB, uint liquidity);
    function addLiquidityETH(
        address token,
        uint amountTokenDesired,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external payable returns (uint amountToken, uint amountETH, uint liquidity);
    function removeLiquidity(
        address tokenA,
        address tokenB,
        uint liquidity,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline
    ) external returns (uint amountA, uint amountB);
    function removeLiquidityETH(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external returns (uint amountToken, uint amountETH);
    function removeLiquidityWithPermit(
        address tokenA,
        address tokenB,
        uint liquidity,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountA, uint amountB);
    function removeLiquidityETHWithPermit(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountToken, uint amountETH);
    function swapExactTokensForTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external returns (uint[] memory amounts);
    function swapTokensForExactTokens(
        uint amountOut,
        uint amountInMax,
        address[] calldata path,
        address to,
        uint deadline
    ) external returns (uint[] memory amounts);
    function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
        external
        payable
        returns (uint[] memory amounts);
    function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)
        external
        returns (uint[] memory amounts);
    function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)
        external
        returns (uint[] memory amounts);
    function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)
        external
        payable
        returns (uint[] memory amounts);

function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);
    function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);
    function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);
    function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
    function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);
}

// pragma solidity >=0.6.2;

interface IUniswapV2Router02 is IUniswapV2Router01 {
    function removeLiquidityETHSupportingFeeOnTransferTokens(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external returns (uint amountETH);
    function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountETH);

function swapExactTokensForTokensSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
    function swapExactETHForTokensSupportingFeeOnTransferTokens(
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external payable;
    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
}

contract SafeMoon is Context, IERC20, Ownable {
    using SafeMath for uint256;
    using Address for address;

mapping (address => uint256) private _rOwned;
    mapping (address => uint256) private _tOwned;
    mapping (address => mapping (address => uint256)) private _allowances;

mapping (address => bool) private _isExcludedFromFee;

mapping (address => bool) private _isExcluded;
    address[] private _excluded;
   
    uint256 private constant MAX = ~uint256(0);
    uint256 private _tTotal = 1000000000 * 10**6 * 10**9;
    uint256 private _rTotal = (MAX - (MAX % _tTotal));
    uint256 private _tFeeTotal;

string private _name = "SafeMoon";
    string private _symbol = "SAFEMOON";
    uint8 private _decimals = 9;
    
    uint256 public _taxFee = 5;
    uint256 private _previousTaxFee = _taxFee;
    
    uint256 public _liquidityFee = 5;
    uint256 private _previousLiquidityFee = _liquidityFee;

IUniswapV2Router02 public immutable uniswapV2Router;
    address public immutable uniswapV2Pair;
    
    bool inSwapAndLiquify;
    bool public swapAndLiquifyEnabled = true;
    
    uint256 public _maxTxAmount = 5000000 * 10**6 * 10**9;
    uint256 private numTokensSellToAddToLiquidity = 500000 * 10**6 * 10**9;
    
    event MinTokensBeforeSwapUpdated(uint256 minTokensBeforeSwap);
    event SwapAndLiquifyEnabledUpdated(bool enabled);
    event SwapAndLiquify(
        uint256 tokensSwapped,
        uint256 ethReceived,
        uint256 tokensIntoLiqudity
    );
    
    modifier lockTheSwap {
        inSwapAndLiquify = true;
        _;
        inSwapAndLiquify = false;
    }
    
    constructor () public {
        _rOwned[_msgSender()] = _rTotal;
        
        IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x05fF2B0DB69458A0750badebc4f9e13aDd608C7F);
         // Create a uniswap pair for this new token
        uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
            .createPair(address(this), _uniswapV2Router.WETH());

// set the rest of the contract variables
        uniswapV2Router = _uniswapV2Router;
        
        //exclude owner and this contract from fee
        _isExcludedFromFee[owner()] = true;
        _isExcludedFromFee[address(this)] = true;
        
        emit Transfer(address(0), _msgSender(), _tTotal);
    }

function name() public view returns (string memory) {
        return _name;
    }

function symbol() public view returns (string memory) {
        return _symbol;
    }

function decimals() public view returns (uint8) {
        return _decimals;
    }

function totalSupply() public view override returns (uint256) {
        return _tTotal;
    }

function balanceOf(address account) public view override returns (uint256) {
        if (_isExcluded[account]) return _tOwned[account];
        return tokenFromReflection(_rOwned[account]);
    }

function transfer(address recipient, uint256 amount) public override returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

function allowance(address owner, address spender) public view override returns (uint256) {
        return _allowances[owner][spender];
    }

function approve(address spender, uint256 amount) public override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {
        _transfer(sender, recipient, amount);
        _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
        return true;
    }

function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
        return true;
    }

function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
        return true;
    }

function isExcludedFromReward(address account) public view returns (bool) {
        return _isExcluded[account];
    }

function totalFees() public view returns (uint256) {
        return _tFeeTotal;
    }

function deliver(uint256 tAmount) public {
        address sender = _msgSender();
        require(!_isExcluded[sender], "Excluded addresses cannot call this function");
        (uint256 rAmount,,,,,) = _getValues(tAmount);
        _rOwned[sender] = _rOwned[sender].sub(rAmount);
        _rTotal = _rTotal.sub(rAmount);
        _tFeeTotal = _tFeeTotal.add(tAmount);
    }

function tokenFromReflection(uint256 rAmount) public view returns(uint256) {
        require(rAmount <= _rTotal, "Amount must be less than total reflections");
        uint256 currentRate =  _getRate();
        return rAmount.div(currentRate);
    }

function excludeFromReward(address account) public onlyOwner() {
        // require(account != 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D, 'We can not exclude Uniswap router.');
        require(!_isExcluded[account], "Account is already excluded");
        if(_rOwned[account] > 0) {
            _tOwned[account] = tokenFromReflection(_rOwned[account]);
        }
        _isExcluded[account] = true;
        _excluded.push(account);
    }

function setSwapAndLiquifyEnabled(bool _enabled) public onlyOwner {
        swapAndLiquifyEnabled = _enabled;
        emit SwapAndLiquifyEnabledUpdated(_enabled);
    }
    
     //to recieve ETH from uniswapV2Router when swaping
    receive() external payable {}

function _reflectFee(uint256 rFee, uint256 tFee) private {
        _rTotal = _rTotal.sub(rFee);
        _tFeeTotal = _tFeeTotal.add(tFee);
    }

function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256, uint256) {
        (uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getTValues(tAmount);
        (uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, tLiquidity, _getRate());
        return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tLiquidity);
    }

function _getTValues(uint256 tAmount) private view returns (uint256, uint256, uint256) {
        uint256 tFee = calculateTaxFee(tAmount);
        uint256 tLiquidity = calculateLiquidityFee(tAmount);
        uint256 tTransferAmount = tAmount.sub(tFee).sub(tLiquidity);
        return (tTransferAmount, tFee, tLiquidity);
    }

function _getRValues(uint256 tAmount, uint256 tFee, uint256 tLiquidity, uint256 currentRate) private pure returns (uint256, uint256, uint256) {
        uint256 rAmount = tAmount.mul(currentRate);
        uint256 rFee = tFee.mul(currentRate);
        uint256 rLiquidity = tLiquidity.mul(currentRate);
        uint256 rTransferAmount = rAmount.sub(rFee).sub(rLiquidity);
        return (rAmount, rTransferAmount, rFee);
    }

function _getRate() private view returns(uint256) {
        (uint256 rSupply, uint256 tSupply) = _getCurrentSupply();
        return rSupply.div(tSupply);
    }

function _approve(address owner, address spender, uint256 amount) private {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");

_allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

function _transfer(
        address from,
        address to,
        uint256 amount
    ) private {
        require(from != address(0), "ERC20: transfer from the zero address");
        require(to != address(0), "ERC20: transfer to the zero address");
        require(amount > 0, "Transfer amount must be greater than zero");
        if(from != owner() && to != owner())
            require(amount <= _maxTxAmount, "Transfer amount exceeds the maxTxAmount.");

// is the token balance of this contract address over the min number of
        // tokens that we need to initiate a swap + liquidity lock?
        // also, don't get caught in a circular liquidity event.
        // also, don't swap & liquify if sender is uniswap pair.
        uint256 contractTokenBalance = balanceOf(address(this));
        
        if(contractTokenBalance >= _maxTxAmount)
        {
            contractTokenBalance = _maxTxAmount;
        }
        
        bool overMinTokenBalance = contractTokenBalance >= numTokensSellToAddToLiquidity;
        if (
            overMinTokenBalance &&
            !inSwapAndLiquify &&
            from != uniswapV2Pair &&
            swapAndLiquifyEnabled
        ) {
            contractTokenBalance = numTokensSellToAddToLiquidity;
            //add liquidity
            swapAndLiquify(contractTokenBalance);
        }
        
        //indicates if fee should be deducted from transfer
        bool takeFee = true;
        
        //if any account belongs to _isExcludedFromFee account then remove the fee
        if(_isExcludedFromFee[from] || _isExcludedFromFee[to]){
            takeFee = false;
        }
        
        //transfer amount, it will take tax, burn, liquidity fee
        _tokenTransfer(from,to,amount,takeFee);
    }

function swapAndLiquify(uint256 contractTokenBalance) private lockTheSwap {
        // split the contract balance into halves
        uint256 half = contractTokenBalance.div(2);
        uint256 otherHalf = contractTokenBalance.sub(half);

// capture the contract's current ETH balance.
        // this is so that we can capture exactly the amount of ETH that the
        // swap creates, and not make the liquidity event include any ETH that
        // has been manually sent to the contract
        uint256 initialBalance = address(this).balance;

// swap tokens for ETH
        swapTokensForEth(half); // <- this breaks the ETH -> HATE swap when swap+liquify is triggered

// how much ETH did we just swap into?
        uint256 newBalance = address(this).balance.sub(initialBalance);

// add liquidity to uniswap
        addLiquidity(otherHalf, newBalance);
        
        emit SwapAndLiquify(half, newBalance, otherHalf);
    }

function swapTokensForEth(uint256 tokenAmount) private {
        // generate the uniswap pair path of token -> weth
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = uniswapV2Router.WETH();

_approve(address(this), address(uniswapV2Router), tokenAmount);

// make the swap
        uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0, // accept any amount of ETH
            path,
            address(this),
            block.timestamp
        );
    }

function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {
        // approve token transfer to cover all possible scenarios
        _approve(address(this), address(uniswapV2Router), tokenAmount);

// add the liquidity
        uniswapV2Router.addLiquidityETH{value: ethAmount}(
            address(this),
            tokenAmount,
            0, // slippage is unavoidable
            0, // slippage is unavoidable
            owner(),
            block.timestamp
        );
    }

//this method is responsible for taking all fee, if takeFee is true
    function _tokenTransfer(address sender, address recipient, uint256 amount,bool takeFee) private {
        if(!takeFee)
            removeAllFee();
        
        if (_isExcluded[sender] && !_isExcluded[recipient]) {
            _transferFromExcluded(sender, recipient, amount);
        } else if (!_isExcluded[sender] && _isExcluded[recipient]) {
            _transferToExcluded(sender, recipient, amount);
        } else if (!_isExcluded[sender] && !_isExcluded[recipient]) {
            _transferStandard(sender, recipient, amount);
        } else if (_isExcluded[sender] && _isExcluded[recipient]) {
            _transferBothExcluded(sender, recipient, amount);
        } else {
            _transferStandard(sender, recipient, amount);
        }
        
        if(!takeFee)
            restoreAllFee();
    }

function _transferStandard(address sender, address recipient, uint256 tAmount) private {
        (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount);
        _rOwned[sender] = _rOwned[sender].sub(rAmount);
        _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
        _takeLiquidity(tLiquidity);
        _reflectFee(rFee, tFee);
        emit Transfer(sender, recipient, tTransferAmount);
    }

function _transferToExcluded(address sender, address recipient, uint256 tAmount) private {
        (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount);
        _rOwned[sender] = _rOwned[sender].sub(rAmount);
        _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
        _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);           
        _takeLiquidity(tLiquidity);
        _reflectFee(rFee, tFee);
        emit Transfer(sender, recipient, tTransferAmount);
    }

function _transferFromExcluded(address sender, address recipient, uint256 tAmount) private {
        (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getValues(tAmount);
        _tOwned[sender] = _tOwned[sender].sub(tAmount);
        _rOwned[sender] = _rOwned[sender].sub(rAmount);
        _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);   
        _takeLiquidity(tLiquidity);
        _reflectFee(rFee, tFee);
        emit Transfer(sender, recipient, tTransferAmount);
    }

}

Texto modificado

Abrir archivo

/**
 *Submitted for verification at BscScan.com on 2022-01-02
*/

/**
 *Submitted for verification at BscScan.com on 2021-12-26
*/

pragma solidity ^0.6.12;
pragma experimental ABIEncoderV2;

library SafeMathUpgradeable {
    /**
     * @dev Returns the addition of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        uint256 c = a + b;
        if (c < a) return (false, 0);
        return (true, c);
    }

/**
     * @dev Returns the substraction of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b > a) return (false, 0);
        return (true, a - b);
    }

/**
     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) return (true, 0);
        uint256 c = a * b;
        if (c / a != b) return (false, 0);
        return (true, c);
    }

/**
     * @dev Returns the division of two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b == 0) return (false, 0);
        return (true, a / b);
    }

/**
     * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        if (b == 0) return (false, 0);
        return (true, a % b);
    }

/**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");
        return c;
    }

/**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b <= a, "SafeMath: subtraction overflow");
        return a - b;
    }

/**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     *
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        if (a == 0) return 0;
        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");
        return c;
    }

/**
     * @dev Returns the integer division of two unsigned integers, reverting on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b > 0, "SafeMath: division by zero");
        return a / b;
    }

/**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b > 0, "SafeMath: modulo by zero");
        return a % b;
    }

/**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {trySub}.
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        return a - b;
    }

/**
     * @dev Returns the integer division of two unsigned integers, reverting with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryDiv}.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        return a / b;
    }

/**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting with custom message when dividing by zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryMod}.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        return a % b;
    }
}

library AddressUpgradeable {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.

uint256 size;
        // solhint-disable-next-line no-inline-assembly
        assembly { size := extcodesize(account) }
        return size > 0;
    }

/**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

/**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");

// solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.call{ value: value }(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

/**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

/**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

// solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.staticcall(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly

abstract contract Initializable {

/**
     * @dev Indicates that the contract has been initialized.
     */
    bool private _initialized;

/**
     * @dev Indicates that the contract is in the process of being initialized.
     */
    bool private _initializing;

/**
     * @dev Modifier to protect an initializer function from being invoked twice.
     */
    modifier initializer() {
        require(_initializing || _isConstructor() || !_initialized, "Initializable: contract is already initialized");

bool isTopLevelCall = !_initializing;
        if (isTopLevelCall) {
            _initializing = true;
            _initialized = true;
        }

if (isTopLevelCall) {
            _initializing = false;
        }
    }

/// @dev Returns true if and only if the function is running in the constructor
    function _isConstructor() private view returns (bool) {
        return !AddressUpgradeable.isContract(address(this));
    }
}

abstract contract ContextUpgradeable is Initializable {
    function __Context_init() internal initializer {
        __Context_init_unchained();
    }

function __Context_init_unchained() internal initializer {
    }
    function _msgSender() internal view virtual returns (address payable) {
        return msg.sender;
    }

abstract contract OwnableUpgradeable is Initializable, ContextUpgradeable {
    address private _owner;

event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

/**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    function __Ownable_init() internal initializer {
        __Context_init_unchained();
        __Ownable_init_unchained();
    }

function __Ownable_init_unchained() internal initializer {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

/**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

/**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

interface ISafemoon {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

/**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

/** @dev Creates `amount` tokens and assigns them to `account`, increasing
     * the total supply.
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     */
    function migrate(address account, uint256 amount) external;

function isMigrationStarted() external view returns (bool);

interface IUniswapV2Factory {
    event PairCreated(address indexed token0, address indexed token1, address pair, uint);

function feeTo() external view returns (address);
    function feeToSetter() external view returns (address);

function createPair(address tokenA, address tokenB) external returns (address pair);

function setFeeTo(address) external;
    function setFeeToSetter(address) external;
}

interface IUniswapV2Pair {
    event Approval(address indexed owner, address indexed spender, uint value);
    event Transfer(address indexed from, address indexed to, uint value);

function DOMAIN_SEPARATOR() external view returns (bytes32);
    function PERMIT_TYPEHASH() external pure returns (bytes32);
    function nonces(address owner) external view returns (uint);

function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;

function initialize(address, address) external;
}

interface IUniswapV2Router01 {
    function factory() external pure returns (address);
    function WETH() external pure returns (address);

function addLiquidity(
        address tokenA,
        address tokenB,
        uint amountADesired,
        uint amountBDesired,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline
    ) external returns (uint amountA, uint amountB, uint liquidity);
    function addLiquidityETH(
        address token,
        uint amountTokenDesired,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external payable returns (uint amountToken, uint amountETH, uint liquidity);
    function removeLiquidity(
        address tokenA,
        address tokenB,
        uint liquidity,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline
    ) external returns (uint amountA, uint amountB);
    function removeLiquidityETH(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external returns (uint amountToken, uint amountETH);
    function removeLiquidityWithPermit(
        address tokenA,
        address tokenB,
        uint liquidity,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountA, uint amountB);
    function removeLiquidityETHWithPermit(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountToken, uint amountETH);
    function swapExactTokensForTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external returns (uint[] memory amounts);
    function swapTokensForExactTokens(
        uint amountOut,
        uint amountInMax,
        address[] calldata path,
        address to,
        uint deadline
    ) external returns (uint[] memory amounts);
    function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
    external
    payable
    returns (uint[] memory amounts);
    function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)
    external
    returns (uint[] memory amounts);
    function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)
    external
    returns (uint[] memory amounts);
    function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)
    external
    payable
    returns (uint[] memory amounts);

contract Safemoon is ISafemoon, Initializable, ContextUpgradeable, OwnableUpgradeable {
    using SafeMathUpgradeable for uint256;
    using AddressUpgradeable for address;

struct FeeTier {
        uint256 ecoSystemFee;
        uint256 liquidityFee;
        uint256 taxFee;
        uint256 ownerFee;
        uint256 burnFee;
        address ecoSystem;
        address owner;
    }

struct FeeValues {
        uint256 rAmount;
        uint256 rTransferAmount;
        uint256 rFee;
        uint256 tTransferAmount;
        uint256 tEchoSystem;
        uint256 tLiquidity;
        uint256 tFee;
        uint256 tOwner;
        uint256 tBurn;
    }

struct tFeeValues {
        uint256 tTransferAmount;
        uint256 tEchoSystem;
        uint256 tLiquidity;
        uint256 tFee;
        uint256 tOwner;
        uint256 tBurn;
    }

mapping (address => uint256) private _rOwned;
    mapping (address => uint256) private _tOwned;
    mapping (address => mapping (address => uint256)) private _allowances;
    mapping (address => bool) private _isExcludedFromFee;
    mapping (address => bool) private _isExcluded;
    mapping (address => bool) private _isBlacklisted;
    mapping (address => uint256) private _accountsTier;

address[] private _excluded;

uint256 private constant MAX = ~uint256(0);
    uint256 private _tTotal;
    uint256 private _rTotal;
    uint256 private _tFeeTotal;
    uint256 private _maxFee;

string private _name;
    string private _symbol;
    uint8 private _decimals;

FeeTier public _defaultFees;
    FeeTier private _previousFees;
    FeeTier private _emptyFees;

FeeTier[] private feeTiers;

IUniswapV2Router02 public uniswapV2Router;
    address public uniswapV2Pair;
    address public WBNB;
    address private migration;
    address private _initializerAccount;
    address public _burnAddress;

bool inSwapAndLiquify;
    bool public swapAndLiquifyEnabled;

uint256 public _maxTxAmount;
    uint256 private numTokensSellToAddToLiquidity;

bool private _upgraded;

event MinTokensBeforeSwapUpdated(uint256 minTokensBeforeSwap);
    event SwapAndLiquifyEnabledUpdated(bool enabled);
    event SwapAndLiquify(
        uint256 tokensSwapped,
        uint256 bnbReceived,
        uint256 tokensIntoLiquidity
    );

modifier lockTheSwap {
        inSwapAndLiquify = true;
        _;
        inSwapAndLiquify = false;
    }

modifier lockUpgrade {
        require(!_upgraded, "Safemoon: Already upgraded");
        _;
        _upgraded = true;
    }

modifier checkTierIndex(uint256 _index) {
        require(feeTiers.length > _index, "Safemoon: Invalid tier index");
        _;
    }

modifier preventBlacklisted(address _account, string memory errorMsg) {
        require(!_isBlacklisted[_account], errorMsg);
        _;
    }

modifier isRouter(address _sender) {
        {
            uint32 size;
            assembly {
                size := extcodesize(_sender)
            }
            if(size > 0) {
                uint256 senderTier = _accountsTier[_sender];
                if(senderTier == 0) {
                    IUniswapV2Router02 _routerCheck = IUniswapV2Router02(_sender);
                    try _routerCheck.factory() returns (address factory) {
                        _accountsTier[_sender] = 1;
                    } catch {

}
                }
            }
        }

_;
    }

function initialize(address _router) public initializer {
        __Context_init_unchained();
        __Ownable_init_unchained();
        __Safemoon_v2_init_unchained(_router);
    }

function __Safemoon_v2_init_unchained(address _router) internal initializer {
        _name = "SafeMoon";
        _symbol = "SFM";
        _decimals = 9;

_tTotal = 1000000 * 10**6 * 10**9;
        _rTotal = (MAX - (MAX % _tTotal));
        _maxFee = 1000;

swapAndLiquifyEnabled = true;

_maxTxAmount = 5000 * 10**6 * 10**9;
        numTokensSellToAddToLiquidity = 500 * 10**6 * 10**9;

_burnAddress = 0x000000000000000000000000000000000000dEaD;
        _initializerAccount = _msgSender();

_rOwned[_initializerAccount] = _rTotal;

uniswapV2Router = IUniswapV2Router02(_router);
        WBNB = uniswapV2Router.WETH();
        // Create a uniswap pair for this new token
        uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory())
        .createPair(address(this), WBNB);

//exclude owner and this contract from fee
        _isExcludedFromFee[owner()] = true;
        _isExcludedFromFee[address(this)] = true;

__Safemoon_tiers_init();

emit Transfer(address(0), _msgSender(), _tTotal);
    }

function __Safemoon_tiers_init() internal initializer {
        _defaultFees = _addTier(0, 500, 500, 0, 0, address(0), address(0));
        _addTier(50, 50, 100, 0, 0, address(0), address(0));
        _addTier(50, 50, 100, 100, 0, address(0), address(0));
        _addTier(100, 125, 125, 150, 0, address(0), address(0));
    }