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.
Example 1:
Input: strs = ["eat","tea","tan","ate","nat","bat"] Output: [["bat"],["nat","tan"],["ate","eat","tea"]] Example 2:
Input: strs = [""] Output: [[""]] Example 3:
Input: strs = ["a"] Output: [["a"]]
Constraints:
1 <= strs.length <= 104 0 <= strs[i].length <= 100 strs[i] consists of lowercase English letters. Accepted 1.8M Submissions 2.7M Acceptance Rate 66.6%# group-anagrams