Solve Leetcode Problems and Get Offers From Your Dream Companies
Published in
2 min readFeb 19, 2021
Leetcode 387. First Unique Character in a String
In this series, I am going to solve Leetcode medium problems live with my friends, which you can see on our youtube channel, Today we will do Problem Leetcode 387. First Unique Character in a String
A little bit about me, I have offers from Uber India and Amazon India in the past, and I am currently working for Booking.com in Amsterdam.
Motivation to learn algorithms
Problem Statement
Given a string, find the first non-repeating character in it and return its index. If it doesn’t exist, return -1.
Examples:
s = "leetcode"
return 0.s = "loveleetcode"
return 2.
Note: You may assume the string contains only lowercase English letters.
