LeetCode 70. Climbing Stairs
Description https://leetcode.com/problems/climbing-stairs/ You are climbing a stair case. It takes n steps to reach to the top. Each time you can either…
Tag: Goldman Sachs Interview Question
LeetCode 387. First Unique Character in a String
Description Given a string, find the first non-repeating character in it and return it’s index. If it doesn’t exist, return…