#### Binary Search

The problem is to find the index of a given target value in a sorted array of integers. If the target value is not found in the array, the function should return -1.

#### Problem

```Given a sorted array of integers and a target value, write a function that returns the index of the target value if it is found in the array, or -1 if it is not found.
Example input: [1, 2, 3, 4, 5], 3
Example output: 2```

#### Solution

This solution is in Python. Our A.I. can create solutions in multiple languages.
by kayakane
```def find_target(array, target):
for i in range(len(array)):
if array[i] == target:
return i
return -1

print(find_target([1, 2, 3, 4, 5], 3))

This solution is optimal because it is O(n) time complexity.

```

A.I. Evaluation of the Solution

This solution is optimal because it is O(n) time complexity. However, it is not the most efficient solution. A more efficient solution would be to use a binary search, which would have a time complexity of O(log n).

Evaluated at: 2022-11-18 04:15:42