Is Unique - Strings & Arrays - Data Structures Interview Question - Part 1

Implement an algorithm to determine if a string has all unique characters. What if you cannot use additional data structures?

00:00 - Problem Introduction 01:10 - Brute Force Solution 07:45 - Optimizations 09:10 - Manual Method 10:32 - Optimal Solution - HashMap Optimization 19:08 - Implementation 22:42 - Testing 25:08 - Part B Optimal Solution - Sorting 31:46 - Part B Implementation 33:16 - Part B Testing 34:20 - Summary

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