eMarchenko

/*
Warning! The code is not production ready. It is provided for educational purposes only.
*/

pragma solidity ^0.8.12;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";

eMarchenko

pragma solidity 0.5.2;
contract EtherOrDollars {
mapping(address => uint) public balances;
    mapping(address => bool) public eth;
    
    function deposit(bool _eth) external payable {
        require(balances[msg.sender] == 0);
        
        balances[msg.sender] = msg.value;
        eth[msg.sender] = _eth;

eMarchenko

pragma solidity 0.5.2;
contract Splitter {
    uint public constant MAX = 100;
    
    mapping(address => uint) public balances;
    mapping(address => uint) public shares;
    
    function deposit(uint share) external payable {
        require(balances[msg.sender] == 0);
        require(share <= MAX);