Description On Planet MM-21, after their Olympic games this year, curling is getting popular. But the rules are somewhat different from ours. The game is played on an ice game board on which a square mesh is marked. They use only a single stone. The…

Curling 2.0 DescriptionOn Planet MM-21, after their Olympic games this year, curling is getting popular. But the rules are somewhat different from ours. The game is played on an ice game board on which a square mesh is marked. They use only a single…

Curling 2.0 Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 14563   Accepted: 6080 Description On Planet MM-21, after their Olympic games this year, curling is getting popular. But the rules are somewhat different from ours. The game is…

https://vjudge.net/problem/POJ-3009 做完这道题,感觉自己对dfs的理解应该又深刻了. 1.一般来说最小步数都用bfs求,但是这题因为状态记录很麻烦,所以可以用dfs. 2.在用dfs的时候,mp时一个全局变量,对于平等的走法,每一个走法结束后一定要状态复原!!!(也就是代码36-38行)否则会对其他走法产生影响. #include<iostream> #include<cstdio> #include<queue> #include&…

正式做POJ的第一题,做出来后又看了别人的代码,就又完善了一下,也通过了.参考 http://blog.sina.com.cn/s/blog_4abcd9bc0100phzb.html 改了之后觉得写得比他好,呵呵. #include <iostream> #include <stdlib.h> using namespace std; #define MAX_W 20 #define MAX_H 20 int s_x; int s_y; int w; int h; ][MAX_W…

PS:以前看到题目这么长就没写下去了.今天做了半天,没做出来.准备看题解,打开了网站都忍住了,最后还是靠自己做出来的.算是一点进步吧. 分析: 题目的意思没明白或者理解有偏差都没办法做题.看样例3和样例4,数据差不多的,但是一个输出4,但是另外的一个却是-1.再去看题目就会发现,题目的意思是在撞碎石头之前必须走一个为值0的格子.我理解为需要加速.对样例4,答案4是这样出来的:初始位置为(1,3),第一步是到达(1,2),并且使得(1,1)点的值为0(撞碎了这里的石头,0代表可以通行):第二步是到…

迷宫问题求最短路. 略有不同的是假设不碰到石头的话会沿着一个方向一直前进,出界就算输了.碰到石头,前方石头会消失,冰壶停在原地. 把这个当作状态的转移. DFS能够求出其最小操作数. #include<iostream> #include<cstdio> #include<cstring> #include<cstdlib> #include<algorithm> #include<queue> #include<vector&…

题目链接. 分析: 本题BFS A不了. 00100 00001 01020 00000 00010 00010 00010 00010 00030 对于这样的数据,本来应当是 5 步,但bfs却 4 步.具体原因可以仔细看一下上面的样例. 应当dfs穷举所有的可能,找出最短的. #include <iostream> #include <cstdio> #include <queue> using namespace std; ; <<); , -, ,…

Curling 2.0 Time Limit : 2000/1000ms (Java/Other)   Memory Limit : 131072/65536K (Java/Other) Total Submission(s) : 30   Accepted Submission(s) : 16 Problem Description On Planet MM-21, after their Olympic games this year, curling is getting popular.…

Curling 2.0 Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 14289 Accepted: 5962 Description On Planet MM-21, after their Olympic games this year, curling is getting popular. But the rules are somewhat different from ours. The game is play…