## 字典树

| \# | 题名 | 题解 | 通过率 | 难度 | 出现频率   |
|------|----------------------|-----|--------|----|--------|
|421|[数组中两个数的最大异或值](https://leetcode-cn.com/problems/maximum-xor-of-two-numbers-in-an-array)   |[13](https://leetcode-cn.com/problems/maximum-xor-of-two-numbers-in-an-array/solution)|57.6%|中等|45.65%|
|676|[实现一个魔法字典](https://leetcode-cn.com/problems/implement-magic-dictionary)   |[10](https://leetcode-cn.com/problems/implement-magic-dictionary/solution)|54.1%|中等|33.31%|
|1032|[字符流](https://leetcode-cn.com/problems/stream-of-characters)   |[8](https://leetcode-cn.com/problems/stream-of-characters/solution)|27.3%|困难|31.94%|
|336|[回文对](https://leetcode-cn.com/problems/palindrome-pairs)   |[7](https://leetcode-cn.com/problems/palindrome-pairs/solution)|32.3%|困难|30.71%|
|745|[前缀和后缀搜索](https://leetcode-cn.com/problems/prefix-and-suffix-search)   |[9](https://leetcode-cn.com/problems/prefix-and-suffix-search/solution)|29.7%|困难|29.75%|
|642|[设计搜索自动补全系统](https://leetcode-cn.com/problems/design-search-autocomplete-system)   |[11](https://leetcode-cn.com/problems/design-search-autocomplete-system/solution)|46.3%|困难|29.75%|
|208|[实现 Trie (前缀树)](https://leetcode-cn.com/problems/implement-trie-prefix-tree)   |[75](https://leetcode-cn.com/problems/implement-trie-prefix-tree/solution)|63.1%|中等|27.07%|
|648|[单词替换](https://leetcode-cn.com/problems/replace-words)   |[19](https://leetcode-cn.com/problems/replace-words/solution)|53.0%|中等|23.63%|
|212|[单词搜索 II](https://leetcode-cn.com/problems/word-search-ii)   |[29](https://leetcode-cn.com/problems/word-search-ii/solution)|38.4%|困难|23.44%|
|1023|[驼峰式匹配](https://leetcode-cn.com/problems/camelcase-matching)   |[10](https://leetcode-cn.com/problems/camelcase-matching/solution)|51.7%|中等|19.28%|
|692|[前K个高频单词](https://leetcode-cn.com/problems/top-k-frequent-words)   |[23](https://leetcode-cn.com/problems/top-k-frequent-words/solution)|46.8%|中等|12.9%|
|1065|[字符串的索引对](https://leetcode-cn.com/problems/index-pairs-of-a-string)   |[7](https://leetcode-cn.com/problems/index-pairs-of-a-string/solution)|48.1%|简单| |
|720|[词典中最长的单词](https://leetcode-cn.com/problems/longest-word-in-dictionary)   |[26](https://leetcode-cn.com/problems/longest-word-in-dictionary/solution)|44.2%|简单| |
|677|[键值映射](https://leetcode-cn.com/problems/map-sum-pairs)   |[17](https://leetcode-cn.com/problems/map-sum-pairs/solution)|60.0%|中等| |
|472|[连接词](https://leetcode-cn.com/problems/concatenated-words)   |[10](https://leetcode-cn.com/problems/concatenated-words/solution)|43.9%|困难| |
|425|[单词方块](https://leetcode-cn.com/problems/word-squares)   |[4](https://leetcode-cn.com/problems/word-squares/solution)|49.2%|困难| |
|211|[添加与搜索单词 - 数据结构设计](https://leetcode-cn.com/problems/add-and-search-word-data-structure-design)   |[34](https://leetcode-cn.com/problems/add-and-search-word-data-structure-design/solution)|41.2%|中等| |