387. First Unique Character in a String | #10 | Hash Table Playlist #hashtable #leetcode #algorithms

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Notes :

Given a string s, find the first non-repeating character in it and return its index. If it does not exist, return -1.

CHAPTERS
0:00 Introduction
0:20 Question Explanation
1:35 Intuition
3:16 Live coding
5:16 Example Walkthrough
6:05 Time & Space Complexity

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CTO-Bhaiya

I think space complexity is constant here because you can never have a map more than 26 characters.

ajaytiwary

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