This problem asks us to develop an algorithm that can determine whether or not a given string has all unique characters. For example, the input string "abcdefg" would return True, while the input string "aabbcc" would return False.

A.I. Evaluation of the Solution

The candidate's solution is correct and uses an efficient approach. The time complexity of the solution is O(n) and the space complexity is O(n).

Evaluated at: 2022-12-12 12:15:26