49. Group Anagrams

2019-04-27

49. Group Anagrams

Given an array of strings, group anagrams together.

Example:

1
2
3
4
5
6
7
Input: ["eat", "tea", "tan", "ate", "nat", "bat"],
Output:
[
  ["ate","eat","tea"],
  ["nat","tan"],
  ["bat"]
]

Note:

  • All inputs will be in lowercase.
  • The order of your output does not matter.

Code:

1
2
3
4
5
6
7
8
9
10
11
class Solution(object):
    def groupAnagrams(self, strs):
        """
        :type strs: List[str]
        :rtype: List[List[str]]
        """
        d = {}
        for w in sorted(strs):
            key = tuple(sorted(w))
            d[key] = d.get(key, []) + [w]
        return d.values()
-->