一. 题目 487-3279 Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 274040 Accepted: 48891 Description Businesses like to have memorable telephone numbers. One way to make a telephone number memorable is to have it spell a memorable word or…
Phone List Time Limit: 3000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 7343 Accepted Submission(s): 2525 Problem Description Given a list of phone numbers, determine if it is consistent in the sense tha…
统计难题 Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 131070/65535 K (Java/Others)Total Submission(s): 31479 Accepted Submission(s): 12087 Problem Description Ignatius最近遇到一个难题,老师交给他很多单词(只有小写字母组成,不会有重复的单词出现),现在老师要他统计出以某个字符串为前缀的单词数量(单词本身也是自己的…
字典树经常用于单词搜索,现在网络引擎中也应用了trie树: public class Trie{ private int SIZE = 26; private TrieNode root; Trie(){ root = new TrieNode(); } private class TrieNode{ private int num;//the times that words passing this node private TrieNode[] son;//son point privat…
本来想找\(01Trie\)的结果找到了一堆字典树水题...算了算了当水个提交量好了. 直接插入模式串,维护一个\(Trie\)树的子树\(sum\)大小,求解每一个文本串匹配时走过的链上匹配数和终点处的子树大小之和. #include <bits/stdc++.h> using namespace std; int top, sta[10010]; int n, m, l, s[10010], max_size; int ch[500010][2], sz[500010], sum[5000…
字典树是一种前缀树 package Trie; import java.util.TreeMap; public class Trie { private class Node{ public boolean isWord; public TreeMap<Character, Node> next; public Node(boolean isWord) { this.isWord = isWord; next = new TreeMap<>(); } public Node()…
Phone List Time Limit: 3000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 18421 Accepted Submission(s): 6207 Problem Description Given a list of phone numbers, determine if it is consistent in the sense tha…
所有字符串的公共前缀最长字符串 特点:(1)公共所有字符串前缀 (好像跟没说一样...) (2)在字典树中特点:任意从根节点触发遇见第一个分支为止的字符集合即为目标串 参考问题:https://leetcode.com/problems/longest-common-prefix/description/ Write a function to find the longest common prefix string amongst an array of strings. If there…
//字典树模板题.题意:给一个库,每次查询,求以之为前缀的单词数量. #include<iostream> #include<string> #include<vector> #include<cstdio> #include<cstring> using namespace std; int tree[500000][27]; int w[500000]; //记录结点属性. int numv=0; // 全局变量,记录顶点编号 int n;…
Phone List 时间限制:1000 ms | 内存限制:65535 KB 难度:4 描述 Given a list of phone numbers, determine if it is consistent in the sense that no number is the prefix of another. Let's say the phone catalogue listed these numbers: Emergency 911 Alice 97 625 999…