leetcode 剑指 Offer II 062. 实现前缀树 java题解

https://leetcode-cn.com/problems/QC3q1f/

class Trie {
    Trie[] child;
    boolean isEnd;
    
    public Trie() {
        child=new Trie[26];
        isEnd=false;
    }
    
    
    public void insert(String word) {
        Trie node=this;
        for(int i=0;i