fix: $49

lucifer · lucifer · commit 3537ae326ba1 · 2020-10-19T13:58:30.000+08:00
diff --git a/problems/49.group-anagrams.md b/problems/49.group-anagrams.md
@@ -132,7 +132,7 @@ class Solution:
           for c in s:
             s_key[ord(c)-ord('a')] += 1
           str_dict[tuple(s_key)].append(s)
-        return str_dict.values()
+        return list(str_dict.values())
 ```
 
 **复杂度分析**
