PROBLEM Given an array of strings strs, group the anagrams together. You can return the answer in any order. An Anagram is a word or phrase formed by rearranging the letters of a different word or phrase, typically using all the original letters exactly once. Example1 *Input*: strs = ["eat","tea","tan","ate","nat","bat"] *Output*: [["bat"],["nat","tan"],["ate","eat","tea"]] Example2 *Input*: strs = [""] *Output*: [ [""] ] Example3 *Input*: strs = ["a"] *Output*: [ ["a"] ] SOLVING We’ll use Hash and Array to solve this problem