Implement a trie with insert, search, and startsWith methods. Note:You may assume that all inputs are consist of lowercase letters a-z. 这道题让我们实现一个重要但又有些复杂的数据结构-字典树, 又称前缀树或单词查找树,详细介绍可以参见网友董的博客,例如,一个保存了8个键的trie结构,"A", "to", "tea&quo…
Phone Number Time Limit: 1000ms Memory limit: 65536K 有疑问?点这里^_^ 题目描述 We know that if a phone number A is another phone number B’s prefix, B is not able to be called. For an example, A is 123 while B is 12345, after pressing 123, we call A, and not…
The ACM team is working on an AI project called (Eih Eye Three) that allows computers to write poems. One of the problems they stumbled upon is finding words with the same suffix. The ACM team constructed a dictionary of words, They are interested on…
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…
统计难题 Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 131070/65535 K (Java/Others)Total Submission(s): 35639 Accepted Submission(s): 13322 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…
https://icpcarchive.ecs.baylor.edu/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=1943 题目大意: 给定一个字符串和给定一个单词集合.问从给定单词集合中选取单词,有多少种选取方法刚好拼接成字符串. 例如: abcd 4 a b cd ab 有两种 a-b-cd ab-cd 这两种情况 解题思路: 因为给定的字符串的长度是3*10^5所以暴力就不能解决问题了…
此次代码使用了诸多新鲜玩意,比如自动类型推断,模板类等等,感觉真的超级好玩啊. 自己做了一个简易的测试,程序的健壮性什么的还是比较差的,此程序留待以后进行功能补全. #pragma once #include<cstddef> #include<string> using std::strlen; using std::pair; using std::make_pair; //字典树节点 template<int size> class TrieNode { publ…
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…
Babelfish Time Limit: 3000MS Memory Limit: 65536K Total Submissions: 30816 Accepted: 13283 Description You have just moved from Waterloo to a big city. The people here speak an incomprehensible dialect of a foreign language. Fortunately, you have…
Shortest Prefixes Time Limit: 1000MS Memory Limit: 30000K Total Submissions: 12731 Accepted: 5442 Description A prefix of a string is a substring starting at the beginning of the given string. The prefixes of "carbon" are: "c", &qu…
Hat’s Words Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 7282 Accepted Submission(s): 2639 Problem Description A hat’s word is a word in the dictionary that is the concatenation of exactly…
What Are You Talking About Time Limit: 10000/5000 MS (Java/Others) Memory Limit: 102400/204800 K (Java/Others)Total Submission(s): 12617 Accepted Submission(s): 4031 Problem Description Ignatius is so lucky that he met a Martian yesterday. But…
统计难题 Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 131070/65535 K (Java/Others)Total Submission(s): 16905 Accepted Submission(s): 7273 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…
Gym 100935F A Poet Computer Time Limit:2000MS Memory Limit:65536KB 64bit IO Format:%I64d & %I64u Description standard input/output The ACM team is working on an AI project called (Eih Eye Three) that allows computers to write poems. One of th…
Find MaxXorSum Time Limit:2000MS Memory Limit:65535KB 64bit IO Format: Description Given n non-negative integers, you need to find two integers a and b that a xor b is maximum. xor is exclusive-or. Input Input starts with an integer T(T <= ) denoting…
