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.
Example 1:
Input: strs = ["eat","tea","tan","ate","nat","bat"]
Output: [["bat"],["nat","tan"],["ate","eat","tea"]]
Example 2:
Input: strs = [""]
Output: [[""]]
1 <= strs.length <= 10^40 <= strs[i].length <= 100strs[i] consists of lowercase English letters["eat","tea","tan","ate","nat","bat"]
[["bat"],["nat","tan"],["ate","eat","tea"]]