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实现前缀树
2022-07-08 00:50:00 【爱写Bug的王六六】
208.实现Trie树
Trie 树(又叫「前缀树」或「字典树」)是一种用于快速查询「某个字符串/字符前缀」是否存在的数据结构。
其核心是使用「边」来代表有无字符,使用「点」来记录是否为「单词结尾」以及「其后续字符串的字符是什么」。
Trie结构:
实现方式:
- 二维数组
class Trie {
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