Anagram Cliques

medium

Given a list of lowercase words, gather them into groups where every word in a group is an anagram of the others.

Return the groups as a list of lists. Order of groups and order within groups don't matter.

Example 1

in words = ["eat","tea","tan","ate","nat","bat"]

out [["eat","tea","ate"],["tan","nat"],["bat"]]

Example 2

in words = ["x"]

out [["x"]]

Constraints