// SPDX-License-Identifier: MIT

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(address indexed owner, address indexed spender, uint256 value);

    function totalSupply() external view returns (uint256);
    function balanceOf(address account) external view returns (uint256);
    function transfer(address to, uint256 value) external returns (bool);
    function allowance(address owner, address spender) external view returns (uint256);
    function approve(address spender, uint256 value) external returns (bool);
    function transferFrom(address from, address to, uint256 value) external returns (bool);
}

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 */
interface IERC20Metadata is IERC20 {
    function name() external view returns (string memory);
    function symbol() external view returns (string memory);
    function decimals() external view returns (uint8);
}

/**
 * @dev Provides information about the current execution context.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 */
abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    constructor(address initialOwner) {
        require(initialOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(initialOwner);
    }

    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    function owner() public view virtual returns (address) {
        return _owner;
    }

    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(newOwner);
    }

    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

/**
 * @dev Implementation of the {IERC20} interface.
 */
abstract contract ERC20 is Context, IERC20, IERC20Metadata {
    mapping(address => uint256) private _balances;
    mapping(address => mapping(address => uint256)) private _allowances;
    uint256 private _totalSupply;
    string private _name;
    string private _symbol;

    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

    function name() public view virtual override returns (string memory) {
        return _name;
    }

    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    function decimals() public view virtual override returns (uint8) {
        return 18;
    }

    function totalSupply() public view virtual override returns (uint256) {
        return _totalSupply;
    }

    function balanceOf(address account) public view virtual override returns (uint256) {
        return _balances[account];
    }

    function transfer(address to, uint256 value) public virtual override returns (bool) {
        _transfer(_msgSender(), to, value);
        return true;
    }

    function allowance(address owner, address spender) public view virtual override returns (uint256) {
        return _allowances[owner][spender];
    }

    function approve(address spender, uint256 value) public virtual override returns (bool) {
        _approve(_msgSender(), spender, value);
        return true;
    }

    function transferFrom(address from, address to, uint256 value) public virtual override returns (bool) {
        _spendAllowance(from, _msgSender(), value);
        _transfer(from, to, value);
        return true;
    }

    function _transfer(address from, address to, uint256 value) internal virtual {
        require(from != address(0), "ERC20: transfer from the zero address");
        require(to != address(0), "ERC20: transfer to the zero address");

        uint256 fromBalance = _balances[from];
        require(fromBalance >= value, "ERC20: transfer amount exceeds balance");
        unchecked {
            _balances[from] = fromBalance - value;
            _balances[to] += value;
        }

        emit Transfer(from, to, value);
    }

    function _approve(address owner, address spender, uint256 value) 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] = value;
        emit Approval(owner, spender, value);
    }

    function _spendAllowance(address owner, address spender, uint256 value) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        require(currentAllowance >= value, "ERC20: insufficient allowance");
        unchecked {
            _approve(owner, spender, currentAllowance - value);
        }
    }

    function _mint(address account, uint256 value) internal virtual {
        require(account != address(0), "ERC20: mint to the zero address");
        _totalSupply += value;
        unchecked {
            _balances[account] += value;
        }
        emit Transfer(address(0), account, value);
    }

    function _burn(address account, uint256 value) internal virtual {
        require(account != address(0), "ERC20: burn from the zero address");

        uint256 accountBalance = _balances[account];
        require(accountBalance >= value, "ERC20: burn amount exceeds balance");
        unchecked {
            _balances[account] = accountBalance - value;
            _totalSupply -= value;
        }
        emit Transfer(account, address(0), value);
    }
}

contract PayPayTheClown is ERC20, Ownable {
    constructor(address initialOwner) ERC20("PayPay the Clown", "PayPay") Ownable(initialOwner) {
        _mint(msg.sender, 1000000 * 10 ** decimals());
    }
}

{
  "compilationTarget": {
    "PayPayTheClown.sol": "PayPayTheClown"
  },
  "evmVersion": "cancun",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": false,
    "runs": 200
  },
  "remappings": []
}