#### Sum of Array Elements

This problem asks the programmer to write a function that, when given an array of integers, calculates the sum of all the elements in the array. The input is an array of four integers, and the output is the integer 10.

#### Problem

```Given an array of integers, write a function that finds the sum of all the elements in the array.
Input: [1, 2, 3, 4]
Output: 10```

#### 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;
}

// This solution is optimal because it uses a for loop to iterate through the array and add each element to the sum variable.
// This solution is O(n) because the time it takes to run is directly proportional to the size of the input.```

A.I. Evaluation of the Solution

This solution is correct and demonstrates a good understanding of how to solve the problem. The approach is straightforward and easy to follow.

Evaluated at: 2022-11-19 06:16:25