FrontRunner-5

FrontRunner.sol

abstract contract ERC20 {
    function balanceOf(address account) external virtual view returns (uint256);
    function transfer(address recipient, uint256 amount) external virtual returns (bool);
    function approve(address spender, uint tokens) public virtual returns (bool success);
}

abstract contract Uniswap {
    function ethToTokenSwapInput(uint256 min_tokens, uint256 deadline) external virtual payable returns (uint256  tokens_bought);
    function tokenToEthSwapInput(uint256 tokens_sold, uint256 min_eth, uint256 deadline) external virtual returns (uint256  eth_bought);
}