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Determine if a string has all unique characters

Problem
Examples
Example 1
Solution
Method 1 - Brute Force - Compare All Characters
Code
Complexity
Improvements
Method 2 - Using the 256 Length Array Assuming the String is an Ascii Character
Complexity
Method 3 - Sorting the Array and Then Finding Unique Chars
Code
Complexity

Related Tags

ctci duplicates-algo string bits string-algo

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