This problem asks you to write a function that searches a sorted array of integers for a given value. If the value is found, the function should return the index where it is located. If the value is not found, the function should return -1.
The candidate's solution is correct and demonstrates a level of completeness. The candidate has correctly identified that binary search is the optimal solution for this problem. The candidate's implementation of binary search is also correct. The only thing that could be improved is the candidate's explanation of the time and space complexity of the solution. The candidate correctly states that the time complexity is O(log n), but does not explain why. The candidate also correctly states that the space complexity is O(1), but again does not explain why.
Evaluated at: 2022-11-21 12:16:24