Ethernaut Level 1: Fallback
Solidity Code
// SPDX-License-Identifier: MIT
pragma solidity ^0.6.0;
import '@openzeppelin/contracts/math/SafeMath.sol';
contract Fallback {
using SafeMath for uint256;
mapping(address => uint) public contributions;
address payable public o...
baguioni.hashnode.dev2 min read