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Must-do List for Interview Prep

Can you solve this real interview question? Squares of a Sorted Array - Given an integer array nums sorted in non-decreasing order, return an array of the squares of each number sorted in …

Can you solve this real interview question? Valid Parentheses - Given a string s containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. An input string is valid …

Can you solve this real interview question? Min Cost Climbing Stairs - You are given an integer array cost where cost[i] is the cost of ith step on a staircase. Once you pay the cost, you can …

Can you solve this real interview question? Isomorphic Strings - Given two strings s and t, determine if they are isomorphic. Two strings s and t are isomorphic if the characters in s can …

Can you solve this real interview question? Insert Interval - You are given an array of non-overlapping intervals intervals where intervals[i] = [starti, endi] represent the start and the end …