creation_sourcecode: // SPDX-License-Identifier: MIT
  
  /*
  Inch by inch.
  
  https://t.me/frogwormgreen
  https://x.com/frogwormgreen
  */
  
  pragma solidity ^0.8.26;
  
  contract Frogworm {
      mapping(address => uint256) private _balances;
      mapping(address => mapping(address => uint256)) private _allowances;
  
      string private constant _name = "Frogworm Green";
      string private constant _symbol = "FWG";
      uint8 private constant _decimals = 18;
      uint256 private constant _totalSupply = 1_000_000_000 * 10**_decimals;
  
      event Transfer(address indexed from, address indexed to, uint256 value);
  
      event Approval(address indexed owner, address indexed spender, uint256 value);
  
      constructor() {
          _balances[msg.sender] = _totalSupply;
          emit Transfer(address(0), msg.sender, _totalSupply);
      }
      
      function name() external view virtual returns (string memory) {
          return _name;
      }
  
      function symbol() external view virtual returns (string memory) {
          return _symbol;
      }
  
      function decimals() external view virtual returns (uint8) {
          return _decimals;
      }
  
      function totalSupply() external view virtual returns (uint256) {
          return _totalSupply;
      }
  
      function balanceOf(address account) external view virtual returns (uint256) {
          return _balances[account];
      }
  
      function transfer(address to, uint256 amount) external virtual returns (bool) {
          address owner = msg.sender;
          require(owner != to, "ERC20: transfer to address cannot be owner");
          _transfer(owner, to, amount);
          return true;
      }
  
      function allowance(address owner, address spender) public view virtual returns (uint256) {
          return _allowances[owner][spender];
      }
  
      function approve(address spender, uint256 amount) external virtual returns (bool) {
          address owner = msg.sender;
          _approve(owner, spender, amount);
          return true;
      }
  
      function transferFrom(address from, address to, uint256 amount) external virtual returns (bool) {
          address spender = msg.sender;
          require(spender != from, "ERC20: transferFrom spender can not be the from");
          _spendAllowance(from, spender, amount);
          _transfer(from, to, amount);
          return true;
      }
  
      function increaseAllowance(address spender, uint256 addedValue) external virtual returns (bool) {
          address owner = msg.sender;
          _approve(owner, spender, allowance(owner, spender) + addedValue);
          return true;
      }
  
      function decreaseAllowance(address spender, uint256 subtractedValue) external virtual returns (bool) {
          address owner = msg.sender;
          uint256 currentAllowance = allowance(owner, spender);
          require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
          unchecked {
              _approve(owner, spender, currentAllowance - subtractedValue);
          }
          return true;
      }
  
      function _transfer(address from, address to, uint256 amount) internal virtual {
          require(from != address(0), "ERC20: transfer from the zero address");
          require(to != address(0), "ERC20: transfer to the zero address");
          require(amount > 0, "ERC20: transfer amount must be greater than zero");
  
          uint256 fromBalance = _balances[from];
          require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
          unchecked {
              _balances[from] = fromBalance - amount;
          }
          _balances[to] += amount;
          emit Transfer(from, to, amount);
      }
  
      function _approve(address owner, address spender, uint256 amount) internal virtual {
          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 _spendAllowance(address owner, address spender, uint256 amount) internal virtual {
          uint256 currentAllowance = allowance(owner, spender);
          if (currentAllowance != type(uint256).max) {
              require(currentAllowance >= amount, "ERC20: insufficient allowance");
              unchecked {
                  _approve(owner, spender, currentAllowance - amount);
              }
          }
      }
  }