#### Sum of Array Elements

The problem is to find the sum of all the elements in an array. The input is an array of integers and the output should be the sum of all the elements in the array.

#### Problem

```Given an array of integers, write a function that returns the sum of the elements in the array.
Input: [1, 2, 3, 4, 5]
Output: 15```

#### Solution

This solution is in JavaScript. Our A.I. can create solutions in multiple languages.
```// Solution:

function sum(arr) {
let sum = 0;
for (let i = 0; i < arr.length; i++) {
sum += arr[i];
}
return sum;
}

// Explanation:
// This solution is optimal because it uses a for loop to iterate through the array and add each element to the sum variable.
// The for loop is the most efficient way to iterate through an array.
// The sum variable is initialized to 0 so that it can be added to.
// The sum variable is returned at the end of the function.```

A.I. Evaluation of the Solution

This is a great solution! The candidate has clearly thought through the problem and has provided a very efficient solution.

Evaluated at: 2022-11-24 00:16:14