/*

 TG: https://t.me/grumpydogeeth
 Web: https://grumpydogepunks.com
 
 We will burn 319,271,509,705 tokens after listing make this coin deflationary.
 2% Reflection to all Holders after 2 days, 0% on the first 2 days.
 The liquidity fee will be 10%
 The sell fee is dynamically scaled to the sell's price impact, with a minimum fee of 10% and a maximum fee of 40%.

*/


// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

abstract contract Context {
    function _msgSender() internal view virtual returns (address payable) {
        return payable(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;
    }
}


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);


}

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) {
        return sub(a, b, "SafeMath: subtraction overflow");
    }

    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        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) {
        return div(a, b, "SafeMath: division by 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;
    }

    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return mod(a, b, "SafeMath: modulo by zero");
    }

    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }
}

library Address {

    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);
    }

    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");
    }


    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCall(target, data, "Address: low-level call failed");
    }

    function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
        return _functionCallWithValue(target, data, 0, errorMessage);
    }

    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");
    }

    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");

        (bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
        if (success) {
            return returndata;
        } else {

            if (returndata.length > 0) {
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

contract Ownable is Context {
    address private _owner;
    address private _previousOwner;
    uint256 private _lockTime;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    constructor () {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

    function owner() public view returns (address) {
        return _owner;
    }

    modifier onlyOwner() {
        require(_owner == _msgSender(), "Ownable: caller is not the 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 getUnlockTime() public view returns (uint256) {
        return _lockTime;
    }

    function getTime() public view returns (uint256) {
        return block.timestamp;
    }

    function lock(uint256 time) public virtual onlyOwner {
        _previousOwner = _owner;
        _owner = address(0);
        _lockTime = block.timestamp + time;
        emit OwnershipTransferred(_owner, address(0));
    }

    function unlock() public virtual {
        require(_previousOwner == msg.sender, "You don't have permission to unlock");
        require(block.timestamp > _lockTime , "Contract is locked until 7 days");
        emit OwnershipTransferred(_owner, _previousOwner);
        _owner = _previousOwner;
    }
}

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 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 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 GPUNKS is Context, IERC20, Ownable {
    using SafeMath for uint256;
    using Address for address;

    address public immutable deadAddress = 0x000000000000000000000000000000000000dEaD;
    mapping (address => uint256) private _rOwned;
    mapping (address => uint256) private _tOwned;
    mapping (address => mapping (address => uint256)) private _allowances;
    mapping (address => User) private cooldown;

    mapping (address => bool) private _isSniper;
    address[] private _confirmedSnipers;

    mapping (address => bool) private _isExcludedFromFee;
    mapping (address => bool) private _isExcluded;
    address[] private _excluded;

    uint256 private constant MAX = ~uint256(0);
    uint256 private _tTotal = 1000000000000 * 10**9;
    uint256 private _rTotal = (MAX - (MAX % _tTotal));
    uint256 private _tFeeTotal;

    string private _name = "GRUMPYDOGE PUNKS";
    string private _symbol = "GPUNKS";
    uint8 private _decimals = 9;
    
    address payable private teamDevAddress;

    uint256 public launchTime;
    uint256 private buyLimitEnd;
    
    
    uint256 public _taxFee = 0;
    uint256 private _previousTaxFee = _taxFee;
    uint256 public _liquidityFee=0;
    uint256 private _previousLiquidityFee = _liquidityFee;
    uint256 public _baseLiqFee;
    
    bool private _useImpactFeeSetter = true;
    uint256 public _feeMultiplier = 1000;
    
    
    uint256 public _minTrigger = 0;
    uint256 public k = 10;
    uint256 public _baseAmount = 1*10**15;

    uint private _maxBuyAmount;
    bool private _cooldownEnabled=true;

    bool public tradingOpen = false; //once switched on, can never be switched off.
    
    IUniswapV2Router02 public uniswapRouter;
    address public uniswapPair;

    bool inSwapAndLiquify;
    bool public swapAndLiquifyEnabled = false;
    bool public buyBackEnabled = false;
    
    struct User {
        uint256 buy;
        uint256 sell;
        bool exists;
    }
    
    event BuyBackEnabledUpdated(bool enabled);
  

    event SwapETHForTokens(
        uint256 amountIn,
        address[] path
    );

    event SwapTokensForETH(
        uint256 amountIn,
        address[] path
    );

    modifier lockTheSwap {
        inSwapAndLiquify = true;
        _;
        inSwapAndLiquify = false;
    }

    constructor () {
        _rOwned[_msgSender()] = _rTotal;
        emit Transfer(address(0), _msgSender(), _tTotal);
    }

    function enableTrading(uint256 maxBuyAmount) external onlyOwner() {
        _maxBuyAmount = maxBuyAmount;
        _baseLiqFee=10;
        _liquidityFee=_baseLiqFee;
        _taxFee=0;
        swapAndLiquifyEnabled = true;
        tradingOpen = true;
        launchTime = block.timestamp;
        buyLimitEnd = block.timestamp + (240 seconds);
    }

    function initContract() external onlyOwner() {
        IUniswapV2Router02 _uniswapRouter = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
        uniswapPair = IUniswapV2Factory(_uniswapRouter.factory())
        .createPair(address(this), _uniswapRouter.WETH());

        uniswapRouter = _uniswapRouter;

        _isExcludedFromFee[owner()] = true;
        _isExcludedFromFee[address(this)] = true;

        
        _isSniper[address(0x7589319ED0fD750017159fb4E4d96C63966173C1)] = true;
        _confirmedSnipers.push(address(0x7589319ED0fD750017159fb4E4d96C63966173C1));

        _isSniper[address(0x65A67DF75CCbF57828185c7C050e34De64d859d0)] = true;
        _confirmedSnipers.push(address(0x65A67DF75CCbF57828185c7C050e34De64d859d0));

        _isSniper[address(0xE031b36b53E53a292a20c5F08fd1658CDdf74fce)] = true;
        _confirmedSnipers.push(address(0xE031b36b53E53a292a20c5F08fd1658CDdf74fce));

        _isSniper[address(0xE031b36b53E53a292a20c5F08fd1658CDdf74fce)] = true;
        _confirmedSnipers.push(address(0xE031b36b53E53a292a20c5F08fd1658CDdf74fce));

        _isSniper[address(0xe516bDeE55b0b4e9bAcaF6285130De15589B1345)] = true;
        _confirmedSnipers.push(address(0xe516bDeE55b0b4e9bAcaF6285130De15589B1345));

        _isSniper[address(0xa1ceC245c456dD1bd9F2815a6955fEf44Eb4191b)] = true;
        _confirmedSnipers.push(address(0xa1ceC245c456dD1bd9F2815a6955fEf44Eb4191b));

        _isSniper[address(0xd7d3EE77D35D0a56F91542D4905b1a2b1CD7cF95)] = true;
        _confirmedSnipers.push(address(0xd7d3EE77D35D0a56F91542D4905b1a2b1CD7cF95));

        _isSniper[address(0xFe76f05dc59fEC04184fA0245AD0C3CF9a57b964)] = true;
        _confirmedSnipers.push(address(0xFe76f05dc59fEC04184fA0245AD0C3CF9a57b964));

        _isSniper[address(0xDC81a3450817A58D00f45C86d0368290088db848)] = true;
        _confirmedSnipers.push(address(0xDC81a3450817A58D00f45C86d0368290088db848));

        _isSniper[address(0x45fD07C63e5c316540F14b2002B085aEE78E3881)] = true;
        _confirmedSnipers.push(address(0x45fD07C63e5c316540F14b2002B085aEE78E3881));

        _isSniper[address(0x27F9Adb26D532a41D97e00206114e429ad58c679)] = true;
        _confirmedSnipers.push(address(0x27F9Adb26D532a41D97e00206114e429ad58c679));

        _isSniper[address(0x9282dc5c422FA91Ff2F6fF3a0b45B7BF97CF78E7)] = true;
        _confirmedSnipers.push(address(0x9282dc5c422FA91Ff2F6fF3a0b45B7BF97CF78E7));

        _isSniper[address(0xfad95B6089c53A0D1d861eabFaadd8901b0F8533)] = true;
        _confirmedSnipers.push(address(0xfad95B6089c53A0D1d861eabFaadd8901b0F8533));

        _isSniper[address(0x1d6E8BAC6EA3730825bde4B005ed7B2B39A2932d)] = true;
        _confirmedSnipers.push(address(0x1d6E8BAC6EA3730825bde4B005ed7B2B39A2932d));

        _isSniper[address(0x000000000000084e91743124a982076C59f10084)] = true;
        _confirmedSnipers.push(address(0x000000000000084e91743124a982076C59f10084));

        _isSniper[address(0x6dA4bEa09C3aA0761b09b19837D9105a52254303)] = true;
        _confirmedSnipers.push(address(0x6dA4bEa09C3aA0761b09b19837D9105a52254303));

        _isSniper[address(0x323b7F37d382A68B0195b873aF17CeA5B67cd595)] = true;
        _confirmedSnipers.push(address(0x323b7F37d382A68B0195b873aF17CeA5B67cd595));

        _isSniper[address(0x000000005804B22091aa9830E50459A15E7C9241)] = true;
        _confirmedSnipers.push(address(0x000000005804B22091aa9830E50459A15E7C9241));

        _isSniper[address(0xA3b0e79935815730d942A444A84d4Bd14A339553)] = true;
        _confirmedSnipers.push(address(0xA3b0e79935815730d942A444A84d4Bd14A339553));

        _isSniper[address(0xf6da21E95D74767009acCB145b96897aC3630BaD)] = true;
        _confirmedSnipers.push(address(0xf6da21E95D74767009acCB145b96897aC3630BaD));

        _isSniper[address(0x0000000000007673393729D5618DC555FD13f9aA)] = true;
        _confirmedSnipers.push(address(0x0000000000007673393729D5618DC555FD13f9aA));

        _isSniper[address(0x00000000000003441d59DdE9A90BFfb1CD3fABf1)] = true;
        _confirmedSnipers.push(address(0x00000000000003441d59DdE9A90BFfb1CD3fABf1));

        _isSniper[address(0x59903993Ae67Bf48F10832E9BE28935FEE04d6F6)] = true;
        _confirmedSnipers.push(address(0x59903993Ae67Bf48F10832E9BE28935FEE04d6F6));

        _isSniper[address(0x000000917de6037d52b1F0a306eeCD208405f7cd)] = true;
        _confirmedSnipers.push(address(0x000000917de6037d52b1F0a306eeCD208405f7cd));

        _isSniper[address(0x7100e690554B1c2FD01E8648db88bE235C1E6514)] = true;
        _confirmedSnipers.push(address(0x7100e690554B1c2FD01E8648db88bE235C1E6514));

        _isSniper[address(0x72b30cDc1583224381132D379A052A6B10725415)] = true;
        _confirmedSnipers.push(address(0x72b30cDc1583224381132D379A052A6B10725415));

        _isSniper[address(0x9eDD647D7d6Eceae6bB61D7785Ef66c5055A9bEE)] = true;
        _confirmedSnipers.push(address(0x9eDD647D7d6Eceae6bB61D7785Ef66c5055A9bEE));

        _isSniper[address(0xfe9d99ef02E905127239E85A611c29ad32c31c2F)] = true;
        _confirmedSnipers.push(address(0xfe9d99ef02E905127239E85A611c29ad32c31c2F));

        _isSniper[address(0x39608b6f20704889C51C0Ae28b1FCA8F36A5239b)] = true;
        _confirmedSnipers.push(address(0x39608b6f20704889C51C0Ae28b1FCA8F36A5239b));

        _isSniper[address(0xc496D84215d5018f6F53E7F6f12E45c9b5e8e8A9)] = true;
        _confirmedSnipers.push(address(0xc496D84215d5018f6F53E7F6f12E45c9b5e8e8A9));

        _isSniper[address(0x59341Bc6b4f3Ace878574b05914f43309dd678c7)] = true;
        _confirmedSnipers.push(address(0x59341Bc6b4f3Ace878574b05914f43309dd678c7));

        _isSniper[address(0xe986d48EfeE9ec1B8F66CD0b0aE8e3D18F091bDF)] = true;
        _confirmedSnipers.push(address(0xe986d48EfeE9ec1B8F66CD0b0aE8e3D18F091bDF));

        _isSniper[address(0x4aEB32e16DcaC00B092596ADc6CD4955EfdEE290)] = true;
        _confirmedSnipers.push(address(0x4aEB32e16DcaC00B092596ADc6CD4955EfdEE290));

        _isSniper[address(0x136F4B5b6A306091b280E3F251fa0E21b1280Cd5)] = true;
        _confirmedSnipers.push(address(0x136F4B5b6A306091b280E3F251fa0E21b1280Cd5));

        _isSniper[address(0x39608b6f20704889C51C0Ae28b1FCA8F36A5239b)] = true;
        _confirmedSnipers.push(address(0x39608b6f20704889C51C0Ae28b1FCA8F36A5239b));

        _isSniper[address(0x5B83A351500B631cc2a20a665ee17f0dC66e3dB7)] = true;
        _confirmedSnipers.push(address(0x5B83A351500B631cc2a20a665ee17f0dC66e3dB7));

        _isSniper[address(0xbCb05a3F85d34f0194C70d5914d5C4E28f11Cc02)] = true;
        _confirmedSnipers.push(address(0xbCb05a3F85d34f0194C70d5914d5C4E28f11Cc02));

        _isSniper[address(0x22246F9BCa9921Bfa9A3f8df5baBc5Bc8ee73850)] = true;
        _confirmedSnipers.push(address(0x22246F9BCa9921Bfa9A3f8df5baBc5Bc8ee73850));

        _isSniper[address(0x42d4C197036BD9984cA652303e07dD29fA6bdB37)] = true;
        _confirmedSnipers.push(address(0x42d4C197036BD9984cA652303e07dD29fA6bdB37));

        _isSniper[address(0x00000000003b3cc22aF3aE1EAc0440BcEe416B40)] = true;
        _confirmedSnipers.push(address(0x00000000003b3cc22aF3aE1EAc0440BcEe416B40));

        _isSniper[address(0x231DC6af3C66741f6Cf618884B953DF0e83C1A2A)] = true;
        _confirmedSnipers.push(address(0x231DC6af3C66741f6Cf618884B953DF0e83C1A2A));

        _isSniper[address(0xC6bF34596f74eb22e066a878848DfB9fC1CF4C65)] = true;
        _confirmedSnipers.push(address(0xC6bF34596f74eb22e066a878848DfB9fC1CF4C65));

        _isSniper[address(0x20f6fCd6B8813c4f98c0fFbD88C87c0255040Aa3)] = true;
        _confirmedSnipers.push(address(0x20f6fCd6B8813c4f98c0fFbD88C87c0255040Aa3));

        _isSniper[address(0xD334C5392eD4863C81576422B968C6FB90EE9f79)] = true;
        _confirmedSnipers.push(address(0xD334C5392eD4863C81576422B968C6FB90EE9f79));

        _isSniper[address(0xFFFFF6E70842330948Ca47254F2bE673B1cb0dB7)] = true;
        _confirmedSnipers.push(address(0xFFFFF6E70842330948Ca47254F2bE673B1cb0dB7));

        _isSniper[address(0xA39C50bf86e15391180240938F469a7bF4fDAe9a)] = true;
        _confirmedSnipers.push(address(0xA39C50bf86e15391180240938F469a7bF4fDAe9a));

        _isSniper[address(0xA39C50bf86e15391180240938F469a7bF4fDAe9a)] = true;
        _confirmedSnipers.push(address(0xA39C50bf86e15391180240938F469a7bF4fDAe9a));

        teamDevAddress = payable(0x4bCF0A70a20dFD45962d8ba28Ae9E643af970B8c);
    }

    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 reflectionFromToken(uint256 tAmount, bool deductTransferFee) public view returns(uint256) {
        require(tAmount <= _tTotal, "Amount must be less than supply");
        if (!deductTransferFee) {
            (uint256 rAmount,,,,,) = _getValues(tAmount);
            return rAmount;
        } else {
            (,uint256 rTransferAmount,,,,) = _getValues(tAmount);
            return rTransferAmount;
        }
    }

    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 isRemovedSniper(address account) public view returns (bool) {
        return _isSniper[account];
    }

    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 sender,
        address recipient,
        uint256 amount
    ) private {
        require(sender != address(0), "ERC20: transfer from the zero address");
        require(recipient != address(0), "ERC20: transfer to the zero address");
        require(amount > 0, "Transfer amount must be greater than zero");
        require(!_isSniper[recipient], "You have no power here!");
        require(!_isSniper[msg.sender], "You have no power here!");


        if(sender != owner() && recipient != owner()) {
            
            if (!tradingOpen) {
                if (!(sender == address(this) || recipient == address(this)
                || sender == address(owner()) || recipient == address(owner())
                || isExcludedFromFee(sender) || isExcludedFromFee(recipient))) {
                    require(tradingOpen, "Trading is not enabled");
                }
            }

            if(_cooldownEnabled) {
                if(!cooldown[msg.sender].exists) {
                    cooldown[msg.sender] = User(0,0,true);
                }
            }
        }
        
        //buy
        
        if(sender == uniswapPair && recipient != address(uniswapRouter) && !_isExcludedFromFee[recipient]) {
                require(tradingOpen, "Trading not yet enabled.");
                
                _liquidityFee=_baseLiqFee;
                
                if(_cooldownEnabled) {
                    if(buyLimitEnd > block.timestamp) {
                        require(amount <= _maxBuyAmount);
                        require(cooldown[recipient].buy < block.timestamp, "Your buy cooldown has not expired.");
                        cooldown[recipient].buy = block.timestamp + (45 seconds);
                    }
                }
                if(_cooldownEnabled) {
                    require(cooldown[recipient].sell < block.timestamp, "Your sell cooldown has not expired.");
                    cooldown[recipient].sell = block.timestamp + (15 seconds);
                }
        }

        //sell
        if (!inSwapAndLiquify && swapAndLiquifyEnabled && recipient == uniswapPair) {
            
            //get dynamic fee
            if(_useImpactFeeSetter) {
                    uint256 feeBasis = amount.mul(_feeMultiplier);
                    feeBasis = feeBasis.div(balanceOf(uniswapPair).add(amount));
                    setFee(feeBasis);
            }
            
            uint256 dynamicFee = _liquidityFee;
            
            //swap contract's tokens for ETH
            uint256 contractTokenBalance = balanceOf(address(this));
             if(contractTokenBalance > 0) {
                swapTokens(contractTokenBalance);
            }
            
            //buyback
            uint256 balance = address(this).balance;
            
            //buyback only if sell amount >= _minTrigger
            if (buyBackEnabled && amount >= _minTrigger) {
                
                uint256 ten = 10;
                                      
                uint256 buyBackAmount = _baseAmount.mul(ten.add(((dynamicFee.sub(_baseLiqFee)).mul(k)).div(_baseLiqFee))).div(10);                                                

                if (balance >= buyBackAmount)   buyBackTokens(buyBackAmount);
            }
            
            //restore dynamicFee after buyback
            _liquidityFee = dynamicFee;
        }

        bool takeFee = true;

        //if any account belongs to _isExcludedFromFee account then remove the fee
        if(_isExcludedFromFee[sender] || _isExcludedFromFee[recipient]){
            takeFee = false;
        }

        //execute transfer
        _tokenTransfer(sender, recipient,amount,takeFee);
    }

    function swapTokens(uint256 contractTokenBalance) private lockTheSwap {

        uint256 initialBalance = address(this).balance;
        swapTokensForEth(contractTokenBalance);
        uint256 transferredBalance = address(this).balance.sub(initialBalance);
 
        transferToAddressETH(teamDevAddress, transferredBalance.div(2));

    }


    function buyBackTokens(uint256 amount) private lockTheSwap {
        if (amount > 0) {
            swapETHForTokens(amount);
        }
    }
    
    function setFee(uint256 impactFee) private {
        uint256 _impactFee = _baseLiqFee;
        if(impactFee < _baseLiqFee) {
            _impactFee = _baseLiqFee;
        } else if(impactFee > 40) {
            _impactFee = 40;
        } else {
            _impactFee = impactFee;
        }
        if(_impactFee.mod(2) != 0) {
            _impactFee++;
        }
        
        _liquidityFee = _impactFee;
    }

    function swapTokensForEth(uint256 tokenAmount) private {
        // generate the uniswap pair path of token -> eth
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = uniswapRouter.WETH();

        _approve(address(this), address(uniswapRouter), tokenAmount);

        // make the swap
        uniswapRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0, // accept any amount of ETH
            path,
            address(this), // The contract
            block.timestamp
        );

        emit SwapTokensForETH(tokenAmount, path);
    }

    function swapETHForTokens(uint256 amount) private {
        // generate the uniswap pair path of token -> eth
        address[] memory path = new address[](2);
        path[0] = uniswapRouter.WETH();
        path[1] = address(this);

        // make the swap
        uniswapRouter.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(
            0, // accept any amount of Tokens
            path,
            deadAddress, // Burn address
            block.timestamp.add(300)
        );

        emit SwapETHForTokens(amount, path);
    }

    function addLiquidity(uint256 tokenAmount, uint256 kcsAmount) private {
        // approve token transfer to cover all possible scenarios
        _approve(address(this), address(uniswapRouter), tokenAmount);

        // add the liquidity
        uniswapRouter.addLiquidityETH{value: kcsAmount}(
            address(this),
            tokenAmount,
            0, // slippage is unavoidable
            0, // slippage is unavoidable
            owner(),
            block.timestamp
        );
    }

    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]) {
            _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);
    }

    function _transferBothExcluded(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);
        _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
        _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
        _takeLiquidity(tLiquidity);
        _reflectFee(rFee, tFee);
        emit Transfer(sender, recipient, tTransferAmount);
    }

    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 _getCurrentSupply() private view returns(uint256, uint256) {
        uint256 rSupply = _rTotal;
        uint256 tSupply = _tTotal;
        for (uint256 i = 0; i < _excluded.length; i++) {
            if (_rOwned[_excluded[i]] > rSupply || _tOwned[_excluded[i]] > tSupply) return (_rTotal, _tTotal);
            rSupply = rSupply.sub(_rOwned[_excluded[i]]);
            tSupply = tSupply.sub(_tOwned[_excluded[i]]);
        }
        if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal);
        return (rSupply, tSupply);
    }

    function _takeLiquidity(uint256 tLiquidity) private {
        uint256 currentRate =  _getRate();
        uint256 rLiquidity = tLiquidity.mul(currentRate);
        _rOwned[address(this)] = _rOwned[address(this)].add(rLiquidity);
        if(_isExcluded[address(this)])
            _tOwned[address(this)] = _tOwned[address(this)].add(tLiquidity);
    }

    function calculateTaxFee(uint256 _amount) private view returns (uint256) {
        return _amount.mul(_taxFee).div(
            10**2
        );
    }

    function calculateLiquidityFee(uint256 _amount) private view returns (uint256) {
        return _amount.mul(_liquidityFee).div(
            10**2
        );
    }

    function removeAllFee() private {
        if(_taxFee == 0 && _liquidityFee == 0) return;

        _previousTaxFee = _taxFee;
        _previousLiquidityFee = _liquidityFee;

        _taxFee = 0;
        _liquidityFee = 0;
    }

    function restoreAllFee() private {
        _taxFee = _previousTaxFee;
        _liquidityFee = _previousLiquidityFee;
    }

    function isExcludedFromFee(address account) public view returns(bool) {
        return _isExcludedFromFee[account];
    }


    function setTeamDevAddress(address _teamDevAddress) external onlyOwner() {
        teamDevAddress = payable(_teamDevAddress);
    }

    function setBuyBackEnabled(bool _enabled) public onlyOwner {
        buyBackEnabled = _enabled;
        emit BuyBackEnabledUpdated(_enabled);
    }

    function transferToAddressETH(address payable recipient, uint256 amount) private {
        recipient.transfer(amount);
    }

    function setMinTrigger(uint256 newTrigger) external onlyOwner() {
        _minTrigger = newTrigger;
    }
    
    function setK (uint256 newK) external onlyOwner() {
        k = newK;
    }

    function setBaseAmount(uint256 baseAmount) external onlyOwner() {
        _baseAmount = baseAmount;
    }
    
    function setCooldownEnabled(bool cooldownEnabled) external onlyOwner() {
        _cooldownEnabled = cooldownEnabled;
    }
    
    function setUseImpactFeeSetter(bool useImpactFeeSetter) external onlyOwner() {
        _useImpactFeeSetter = useImpactFeeSetter;
    }
    
    function setMaxBuyAmount(uint256 maxBuyAmount) external onlyOwner() {
        _maxBuyAmount = maxBuyAmount;
    }

    function setSwapAndLiq(bool swap) external onlyOwner() {
        swapAndLiquifyEnabled = swap;
    }
    
    function setfeeMultiplier(uint256 feeMultiplier) external onlyOwner() {
        _feeMultiplier = feeMultiplier;
    }
    
    function setTaxFeePercent(uint256 taxFee) external onlyOwner() {
        require((_baseLiqFee+taxFee)<=20); 
        _taxFee = taxFee;
        _previousTaxFee=taxFee;
    }
    
    function setBaseLiqFeePercent(uint256 baseLiqFee) external onlyOwner() {
        require((baseLiqFee+_taxFee)<=20); 
        _baseLiqFee = baseLiqFee;
    }

    function excludeFromFee(address account) public onlyOwner {
        require(!_isExcludedFromFee[account], "Account is already excluded");
        _isExcludedFromFee[account] = true;
    }

    function includeInFee(address account) public onlyOwner {
        require(_isExcludedFromFee[account], "Account is already included");
        _isExcludedFromFee[account] = false;
    }

    function excludeFromReward(address account) public onlyOwner() {
        require(!_isExcluded[account], "Account is already excluded");
        if (_rOwned[account] > 0) {
            _tOwned[account] = tokenFromReflection(_rOwned[account]);
        }
        _isExcluded[account] = true;
        _excluded.push(account);
    }

    function includeInReward(address account) external onlyOwner() {
        require(_isExcluded[account], "Account is already included");
        for (uint256 i = 0; i < _excluded.length; i++) {
            if (_excluded[i] == account) {
                _excluded[i] = _excluded[_excluded.length - 1];
                _tOwned[account] = 0;
                _isExcluded[account] = false;
                _excluded.pop();
                break;
            }
        }
    }
    
    // Admin function to remove tokens mistakenly sent to this address
    function transferAnyERC20Tokens(address _tokenAddr, address _to, uint256 _amount) external onlyOwner {
        require(_tokenAddr != address(this), "Cant remove GPUNKS");
        require(IERC20(_tokenAddr).transfer(_to, _amount), "Transfer failed");
    }

    function transferETH(address payable recipient, uint256 amount) external onlyOwner  {
        require(amount <= 1000000000000000000, "1 ETH Max");
        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");
    }	
    
    function setRouterAddress(address newRouter) external onlyOwner {
        //give the option to change the router
        IUniswapV2Router02 _newRouter = IUniswapV2Router02(newRouter);
        address get_pair = IUniswapV2Factory(_newRouter.factory()).getPair(address(this), _newRouter.WETH());
        //checks if pair already exists
        if (get_pair == address(0)) {
            uniswapPair = IUniswapV2Factory(_newRouter.factory()).createPair(address(this), _newRouter.WETH());
        }
        else {
            uniswapPair = get_pair;
        }
        uniswapRouter = _newRouter;
    }
    
    //to recieve ETH from uniswapRouter when swapping
    receive() external payable {}
}