677. Map Sum Pairs
667. Map Sum Pairs
class TrieNode:
def __init__(self, val
Trie
588. Design In-Memory File System
588. Design In-Memory File System
class TrieNode:
def __init__(self)
648. Replace Words
648. Replace Words
這一題就屬於一開始看題目比較不容易看出來要是用 Trie ，題目中的一個小提示是最後我們要輸出的字串，是要輸出的是每個單字的 prefix ，看到要找 prefix
208. Implement Trie Prefix Tree
208. Implement Trie (Prefix Tree)
class Trie:
def __init__(self)
211. Design Add and Search Words Data Structure
211. Design Add and Search Words Data Structure
這一題比較特別，需要模糊比對搜尋的字串，
642. Design Search Autocomplete System
642. Design Search Autocomplete System
class AutocompleteSystem:
def __init__(self,
1268. Search Suggestions System
1268. Search Suggestions System
class TrieNode:
def __init__(self):
self.