#### Sum of Odd Numbers in an Array

The problem is to write a function that calculates the sum of the odd numbers in an array. An example input would be [1, 2, 3, 4, 5] and the corresponding output would be 9.

#### Problem

```Write a function that takes an array of integers and returns the sum of the odd numbers in the array.
Example input: [1, 2, 3, 4, 5]
Example output: 9```

#### Solution

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

function sumOdd(arr) {
let sum = 0;
for (let i = 0; i < arr.length; i++) {
if (arr[i] % 2 !== 0) {
sum += arr[i];
}
}
return sum;
}

// Explanation:

// This solution is optimal because it uses a for loop to iterate through the array and check if each element is odd. If it is, it adds it to the sum.
// This solution is optimal because it only iterates through the array once, and it only adds the odd numbers to the sum.```

A.I. Evaluation of the Solution

This solution is correct and demonstrates a good understanding of how to approach this problem. The candidate has correctly identified that a for loop is the best way to iterate through the array, and has also correctly identified that only odd numbers need to be added to the sum. This is a well-thought-out solution.

Evaluated at: 2022-11-22 02:16:23