Largest element Given an integer array nums and an integer k, return the kth largest e…
Sequential Digits An integer has sequential digits if and only if each digit in the nu…
Palindrome Number: Given an integer x, return true if x is a palindrome and false othe…
Duplicate Element Given an integer array nums, return true if any value appears at lea…
Palindrome Sub String Given a string s, return the longest palindromic substring in s.…
Anthem Berland has a long and glorious history. To increase awareness about it among y…
Valid Anagram Given two strings s and t, return true if t is an anagram of s, and fals…
Longest subarray You are given an array A of N integers: A1, A2, ..., AN. You need to…