Jesserc

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




contract DB {
// 0xAb8483F64d9C6d1EcF9b849Ae677dD3315835cb2  //1
// 0x4B20993Bc481177ec7E8f571ceCaE8A9e22C02db  //2
// 0x78731D3Ca6b7E34aC0F824c42a7cC18A495cabaB //3

Jesserc

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

/**
@title Counter Contract
 @author Jesse Raymond
 @notice  This is a simple counter contract, where users can increment and decrement the value of the variable count(see below), once every 30 seconds.
 @dev Key concepts in solidity i used: 
 - Modifier, 
 - Internal function,

Jesserc

// SPDX-License-Identifier: MIT;
pragma solidity >=0.7.0 <=0.8.15;

contract Test {


    mapping(address => uint256) balances;
  

    function deposit() public payable {

Jesserc

// SPDX-License-Identifier: GPL-3.0

pragma solidity ^0.8.0;

contract Vault {
    // a contract where the owner create grant for a beneficiary;
    //allows beneficiary to withdraw only when time elapse
    //allows owner to withdraw before time elapse
    //get information of a beneficiary
    //amount of ethers in the smart contract

Jesserc

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

contract Enum {
    enum Status {
        Done,
        AlmostDone,
        Failed
    }

Jesserc

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

contract Staking {
    mapping(address => uint256) balances;
    uint256 public deadline = 0;
    event Stake(address sender, uint256 amount);

    function stake() public payable {
        require(msg.value > 0, "Input value");

Jesserc

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

contract Energy {
    /// State Variable

    uint constant totalSupply = 100000;
    uint public circulatingSupply;
    string constant name = "Energy";
    string constant symbol = "ENG";

Jesserc

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

import "@openzeppelin/contracts/token/ERC20/ERC20.sol";

contract Bridge is ERC20{

address owner;

    modifier onlyOnwer(){

Jesserc

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

contract TestDelegateCall{
    //this contract is to test delegatecall in solidity
    //to do this, the storage layout in both contract must be same
    //delegate call, calls another contract but the storage of the calling 
    //contract is set instead while using the called contracts logic

    uint64 public num;

Jesserc

// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.9;

import "./multisig.sol";

contract MultiSigFactory {
    //a factory contract that create multiple clones of multisig.sol
    //a function that create a new multisig
    //an array that holds contract addresses created
    //a function that calls the approve function in multisig.sol