Two Sum
Given an array of integers nums and an integer target, return indices of the two numbers such that they add up to target. You may assume…
Valid Anagram
Given two strings s and t, return true if t is an anagram of s, and false otherwise. Approach: To determine if two strings, s and t, are…
Contains Duplicate
Given an integer array nums, return true if any value appears at least twice in the array, and return false if every element is distinct.…