Challenge #9 – tx.origin Misuse

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
contract ArraySum {
// Array to store integers
uint[] public numbers;
// Function to add numbers to the array function addNumber (uint _number) public {
}
numbers.push(_number);
// Function to calculate the sum of all numbers using a loop
function calculateSum() public view returns
(uint) {
uint sum = 0;
for (uint i = 0; i < numbers.length; i++)
{
}
sum += numbers[i];
return sum;
}