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•  contract ERC20 *
•    - function transfer(address _to, uint25 ...
•    - function transferFrom(address _from, ...
•    - function approve(address _spender, ui ...
•    - function mint(address _to, uint256 _v ...

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/**
 *Submitted for verification at Etherscan.io on 2024-08-28
*/

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

contract ERC20 {
    string public name;
    string public symbol;
    uint8 public decimals;
    uint256 public totalSupply;
    address public minter;

    mapping(address => uint256) public balanceOf;
    mapping(address => mapping(address => uint256)) public allowance;

    event Transfer(address indexed sender, address indexed receiver, uint256 value);
    event Approval(address indexed owner, address indexed spender, uint256 value);

    address constant ZERO = address(0);

    constructor(string memory _name, string memory _symbol, uint8 _decimals, uint256 _supply) {
        name = _name;
        symbol = _symbol;
        decimals = _decimals;
        uint256 init_supply = _supply * 10 ** uint256(_decimals);
        balanceOf[msg.sender] = init_supply;
        totalSupply = init_supply;
        minter = msg.sender;
        emit Transfer(ZERO, msg.sender, init_supply);
    }

    function transfer(address _to, uint256 _value) external returns (bool) {
        require(_value <= balanceOf[msg.sender], "Insufficient balance for transfer");
        require(_to != ZERO, "Invalid address");

        balanceOf[msg.sender] -= _value;
        balanceOf[_to] += _value;

        emit Transfer(msg.sender, _to, _value);
        return true;
    }

    function transferFrom(address _from, address _to, uint256 _value) external returns (bool) {
        require(_value <= balanceOf[_from], "Insufficient balance for transfer");
        require(_value <= allowance[_from][msg.sender], "Allowance exceeded");
        require(_to != ZERO, "Invalid address");

        balanceOf[_from] -= _value;
        balanceOf[_to] += _value;
        allowance[_from][msg.sender] -= _value;

        emit Transfer(_from, _to, _value);
        return true;
    }

    function approve(address _spender, uint256 _value) external returns (bool) {
        require(_spender != ZERO, "Invalid address");

        allowance[msg.sender][_spender] = _value;
        emit Approval(msg.sender, _spender, _value);
        return true;
    }

    function mint(address _to, uint256 _value) external {
        require(msg.sender == minter, "Only the minter can mint tokens");
        require(_to != ZERO, "Invalid address");

        totalSupply += _value;
        balanceOf[_to] += _value;
        emit Transfer(ZERO, _to, _value);
    }
}

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[{"inputs":[{"internalType":"string","name":"_name","type":"string"},{"internalType":"string","name":"_symbol","type":"string"},{"internalType":"uint8","name":"_decimals","type":"uint8"},{"internalType":"uint256","name":"_supply","type":"uint256"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":true,"internalType":"address","name":"receiver","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_spender","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"mint","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"minter","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_from","type":"address"},{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_value","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"}]

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-----Decoded View---------------
Arg [0] : _name (string): HalFinv2 ✨
Arg [1] : _symbol (string): HalFinv2 ✨
Arg [2] : _decimals (uint8): 9
Arg [3] : _supply (uint256): 21000000

-----Encoded View---------------
8 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000080
Arg [1] : 00000000000000000000000000000000000000000000000000000000000000c0
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000009
Arg [3] : 0000000000000000000000000000000000000000000000000000000001406f40
Arg [4] : 000000000000000000000000000000000000000000000000000000000000000c
Arg [5] : 48616c46696e763220e29ca80000000000000000000000000000000000000000
Arg [6] : 000000000000000000000000000000000000000000000000000000000000000c
Arg [7] : 48616c46696e763220e29ca80000000000000000000000000000000000000000

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