Ifeanyi-Ani

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.9;
contract loopAndFunctionChallenge{
    // function that takes two number and add them together
    function addTwoNumber(uint a, uint b) external pure returns (uint) {
        return a + b;
    }
    // function that substract two given number
    function substractTwoNumber(uint a, uint b) external pure returns (uint){
        //checking to make sure it does not return negative number

Ifeanyi-Ani

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

contract IfElse {
    function foo(uint x) public pure returns (uint) {
        if (x < 10) {
            return 0;
        } else if (x < 20) {
            return 1;
        } else {

Ifeanyi-Ani

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

contract EtherConverter {
    uint256 public weiFactor = 10**18; // Conversion factor from ether to wei
    uint256 public gweiFactor = 10**9; // Conversion factor from ether to gwei
    
    function etherToWei(uint256 _etherValue) public view returns (uint256) {
        return _etherValue * weiFactor;

Ifeanyi-Ani

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.18;

// FIRST CHALLENGE

// Write a simple contract and declare four different types of variables.
// Write get and set functions for each of these variables.
//Return the value of the variable in the “set function”.

contract ChallengeOne {