[LeetCode][Python3] 49. Group Anagrams

Problem :

https://leetcode.com/problems/group-anagrams

My Solution :

class Solution:

def groupAnagrams(self, strs):

"""

:type strs: List[str]

:rtype: List[List[str]]

"""

counter = {}

for item in strs:

key = [0]*26

for c in item:

key[ord(c)-97] += 1

counter.setdefault(tuple(key), []).append(item)

return list(counter.values())