Hardwood Species Time Limit: 10000MS Memory Limit: 65536K Total Submissions: 17986 Accepted: 7138 Description Hardwoods are the botanical group of trees that have broad leaves, produce a fruit or nut, and generally go dormant in the winter. Amer…
Phone List Description 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 Bob 91 12 54 26 In this case,…
Description Word puzzles are usually simple and very entertaining for all ages. They are so entertaining that Pizza-Hut company started using table covers with word puzzles printed on them, possibly with the intent to minimise their client's percepti…
题目: 给定 n 个长度不超过 10 的数字串,问其中是否存在两个数字串 S, T ,使得 S 是 T 的前缀.多组数据,数据组数不超过 40. 题解: 前缀问题一般都用Trie树解决: 所以跑一个Tire树,记录一下每个节点是不是结尾就好 #include<cstdio> #include<algorithm> #include<cstring> #define N 100010 #define Z 10 using namespace std; int T,n,to…
点击打开链接 Colored Sticks Time Limit: 5000MS Memory Limit: 128000K Total Submissions: 27955 Accepted: 7403 Description You are given a bunch of wooden sticks. Each endpoint of each stick is colored with some color. Is it possible to align the sticks…
