fix: TLE

Author: robot

problems/472.concatenated-words.md

@@ -129,15 +129,16 @@ class Trie:
 
 class Solution:
     def findAllConcatenatedWordsInADict(self, words: List[str]) -> List[str]:
-        self.trie = Trie()
+        trie = Trie()
         res = []
-
-        for word in words:
-            self.trie.insert(word)
+        words.sort(key=len)
         for word in words:
-            if self.trie.cntWords(word) >= 2:
+            if trie.cntWords(word) >= 2:
                 res.append(word)
+            else:
+                trie.insert(word)
         return res
+
 ```
 
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