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Adobe India Hackathon - Mock Test 10

Select your answers. Once selected, they will be locked.

Section 1: MCQs

Section 2: DSA Problem

First Non-Repeating Character

Given a string, return the index of the first non-repeating character. If there is none, return -1. 

Input: "leetcode"
Output: 0

Input: "aabb"
Output: -1

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