静态---时间快 /************************************************************************* > File Name: Trie.c > Author: > Mail: > Created Time: Tue 11 Dec 2018 03:46:05 PM CST ************************************************************************/…

字典树 Time Limit: 1000 ms Memory Limit: 65536 KiB Submit Statistic Problem Description 遇到单词不认识怎么办? 查字典啊,已知字典中有n个单词,假设单词都是由小写字母组成.现有m个不认识的单词,询问这m个单词是否出现在字典中. Input 含有多组测试用例. 第一行输入n,m (n>=0&&n<=100000&&m>=0&&m<=100000)分别是字典…

Trie字典树 #include "stdio.h" #include "iostream" #include "malloc.h" #include "string.h" using namespace std; #define MAX_SIZE 26 typedef struct Trie{ char val; bool isword; struct Trie* child[MAX_SIZE]; }Node,*Trie_p…

ios 常用字符串的操作   //将NSData转化为NSString        NSString* str = [[NSString alloc] initWithData:response encoding:NSUTF8StringEncoding];//将NSString 转化为NSData (NSString.h)- (NSData *)dataUsingEncoding:(NSStringEncoding)encoding; //载一个字符串中删除一个字符或字符串[_display…

传送门:http://acm.hdu.edu.cn/showproblem.php?pid=1251 统计难题 Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 131070/65535 K (Java/Others) 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前缀). Input…

Hat’s Words Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 11894    Accepted Submission(s): 4239 Problem Description A hat’s word is a word in the dictionary that is the concatenation of exactl…

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…

Phone List POJ动态建树TLE了~~~ 题意:拨打某个电话时可能会因为和其他电话号码的前几位重复而导致错误,现在给出一张电话单,求是否有某个电话是其他电话的前缀.是则输出NO,否则输出YES. 思路:字典树模板题了,但有一个动态建树每次都要清空内存这个很重要,很容易导致MLE了.这个题插入和查找可以放在一起,这便是字典树的强大之处. struct Tree { bool f; Tree *next[N]; }; int insert(Tree *root,char *s) { int…

静态字典树 看了好久的字典树,挺简单的一个结构,愣是看了这么久才写出来... 专心一点就不会这样了.... 接下来就去刷刷字典树的题吧....... 下面是字典树.... 定义节点 typedef struct Trie{ char val;  //其实这东西没啥软用...注释掉也一样...没有变化 bool isword; struct Trie *next[26];}*Trie_pointer; 然后建树 这几天抽风了... 把memset写在函数外面去了.... 编译老半天过不去....…

Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 6700 Accepted: 1922 Description RJ Freight, a Japanese railroad company for freight operations has recently constructed exchange lines at Hazawa, Yokohama. The layout of the lines is shown in…