Dsa
Sliding Window
Medium
Shortest Substring with All Unique Characters
Given a string s, find the length of the shortest substring that contains all unique characters. If not all characters are unique, return -1.
Example:
Input:
"abcabcbb"
Output:
3
(Note: The shortest substring with all unique characters is "abc".)
Key concepts
sliding_windowsubstringhash_set
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