单词拼接时间限制:3000 ms | 内存限制:65535 KB难度:5 描述给你一些单词,请你判断能否把它们首尾串起来串成一串.前一个单词的结尾应该与下一个单词的道字母相同.如 aloha dog arachnid gopher tiger rat 可以拼接成:aloha.arachnid.dog.gopher.rat.tiger 输入第一行是一个整数N(0<N<20),表示测试数据的组数每组测试数据的第一行是一个整数M,表示该组测试数据中有M(2<M<1000)个互不相同的单词…
题目链接: http://poj.org/problem?id=2513 http://bailian.openjudge.cn/practice/2513?lang=en_US Time Limit: 5000MS Memory Limit: 128000K Description You are given a bunch of wooden sticks. Each endpoint of each stick is colored with some color. Is it possi…
In a highly modernized fishing village, inhabitants there make a living on fishery. Their major tools, fishing nets, are produced and fixed by computer. After catching fishes each time, together with plenty of fishes, they will bring back the shabby…
GCD 描述 The greatest common divisor GCD(a,b) of two positive integers a and b,sometimes written (a,b),is the largest divisor common to a and b,For example,(1,2)=1,(12,18)=6. (a,b) can be easily found by the Euclidean algorithm. Now Carp is considering…
题意: 给定一个图,要求打印出任一条欧拉路径(保证图肯定有欧拉路). 思路: 深搜的过程中删除遍历过的边,并在回溯时打印出来.在深搜时会形成多个环路,每个环都有一个或多个结点与其他环相扣,这样就可以产生欧拉路径. #include <bits/stdc++.h> using namespace std; ; int n, m, a, b; vector< vector<int> > vect;//邻接表 void fleury(int t) { while(!vect[…