骨牌无非两种放法,横着或竖着放,每次检查最r,c最小的没访问过的点即可.如果不能放就回溯. 最外面加一层认为已经访问过的位置,方便判断. #include<bits/stdc++.h> ; ; ; bool used[MAXB];// used Bone int pip[MAXP][MAXP];// pip 2 Bone ][]; ][]; int cnt; void dfs(int r,int c) { while(ans[r][c]) { ) { r++; c = -; } c++; }…

题意:根据多米诺骨牌的编号的7*8矩阵,每个点可以和相邻的点组成的骨牌对应一个编号,问能形成多少种由编号组成的图. 分析:dfs,组成的图必须有1~28所有编号. #pragma comment(linker, "/STACK:102400000, 102400000") #include<cstdio> #include<cstring> #include<cstdlib> #include<cctype> #include<cm…

211 - The Domino Effect Time limit: 3.000 seconds A standard set of Double Six dominoes contains 28 pieces (called bones) each displaying two numbersfrom 0 (blank) to 6 using dice-like pips. The 28 bones, which are unique, consist of the followingcom…

题目链接: 传送门 Domino Effect time limit per test:1 second     memory limit per test:256 megabytes Description Little Chris knows there's no fun in playing dominoes, he thinks it's too random and doesn't require skill. Instead, he decided to play with the…

Description Did you know that you can use domino bones for other things besides playing Dominoes? Take a number of dominoes and build a row by standing them on end with only a small distance in between. If you do it right, you can tip the first domin…

点我看题目 题意 : 一个新的多米诺骨牌游戏,就是这个多米诺骨中有许多关键牌,他们之间由一行普通的骨牌相连接,当一张关键牌倒下的时候,连接这个关键牌的每一行都会倒下,当倒下的行到达没有倒下的关键牌时,这个关键牌也会倒下,然后与这个关键牌相连接的所有行都会倒下,每一行有两个端点也就是两个关键牌,可以从任意一个端点开始倒下,也可以从两个端点同时开始倒下,从第一张骨牌开始倒,最后倒下的牌的位置以及时间. 思路 : 先利用Dijkstra求出每张关键牌倒下的时间time[i],即求出第一张关键牌到其他关…

Description Did you know that you can use domino bones for other things besides playing Dominoes? Take a number of dominoes and build a row by standing them on end with only a small distance in between. If you do it right, you can tip the first domin…

Problem UVA211-The Domino Effect Accept:536  Submit:2504 Time Limit: 3000 mSec  Problem Description  Input The input file will contain several of problem sets. Each set consists of seven lines of eight integers from 0 through 6, representing an observ…

Domino Effect Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 9335   Accepted: 2325 Description Did you know that you can use domino bones for other things besides playing Dominoes? Take a number of dominoes and build a row by standing t…

Domino Effect Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 10325   Accepted: 2560 Description Did you know that you can use domino bones for other things besides playing Dominoes? Take a number of dominoes and build a row by standing…