// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

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);
    event Airdrop(address indexed from, address indexed to, uint256 value);
    event Snapshot(uint256 indexed id, uint256 totalSupply);
}

contract Token is IERC20 {
    uint256 public override totalSupply;
    mapping(address => uint256) balances;
    mapping(address => mapping(address => uint256)) allowances;
    
    constructor(uint256 _totalSupply) {
        totalSupply = _totalSupply;
        balances[msg.sender] = _totalSupply;
    }
    
    function balanceOf(address _owner) public view override returns (uint256) {
        return balances[_owner];
    }
    
    function transfer(address _to, uint256 _value) public override returns (bool) {
        require(balances[msg.sender] >= _value, "Insufficient balance");
        balances[msg.sender] -= _value;
        balances[_to] += _value;
        emit Transfer(msg.sender, _to, _value);
        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) {
        allowances[msg.sender][spender] = amount;
        emit Approval(msg.sender, spender, amount);
        return true;
    }
    
    function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {
        require(balances[sender] >= amount, "Insufficient balance");
        require(allowances[sender][msg.sender] >= amount, "Insufficient allowance");
        
        balances[sender] -= amount;
        balances[recipient] += amount;
        allowances[sender][msg.sender] -= amount;
        
        emit Transfer(sender, recipient, amount);
        return true;
    }
    
    function airdrop(address[] memory recipients, uint256[] memory amounts) public returns (bool) {
        require(recipients.length == amounts.length, "Invalid input");
        
        for (uint256 i = 0; i < recipients.length; i++) {
            address recipient = recipients[i];
            uint256 amount = amounts[i];
            
            require(balances[msg.sender] >= amount, "Insufficient balance");
            
            balances[msg.sender] -= amount;
            balances[recipient] += amount;
            
            emit Transfer(msg.sender, recipient, amount);
            emit Airdrop(msg.sender, recipient, amount);
        }
        
        return true;
    }
    
    function snapshot(uint256 id) public returns (bool) {
        emit Snapshot(id, totalSupply);
        return true;
    }
}

contract ERC20Token is Token {
    string public name;
    uint8 public decimals;
    string public symbol;
    
    constructor() Token(6900000000000) {
        name = "BananaCat";
        decimals = 0;
        symbol = "BANACAT";
    }
}

contract UniswapLiquidityProvider {
    ERC20Token public token;
    address public uniswapRouter;
    
    constructor(address _token, address _uniswapRouter) {
        token = ERC20Token(_token);
        uniswapRouter = _uniswapRouter;
    }
    
    function provideLiquidity(uint256 amount) public {
        token.approve(uniswapRouter, amount);
        // Perform necessary steps to provide liquidity on Uniswap using the router
        // (e.g., call the Uniswap router contract's functions)
    }
}