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.
SOLUTION:
class Solution:
def groupAnagrams(self, strs: List[str]) -> List[List[str]]:
buckets = {}
for word in strs:
key = "".join(sorted(word))
buckets[key] = buckets.get(key, []) + [word]
return list(buckets.values())
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