049 Anagrams

from collections import defaultdict
class Solution:
    # @param {string[]} strs
    # @return {string[]}
    def anagrams(self, strs):
        dic = defaultdict(list)
        ans = []
        for s in strs:
            dic["".join(sorted(s))].append(s)
        for v in dic.values():
            if len(v) > 1:
                ans.extend(v)
        return ans