真的晚了,我就知道,一旦涉及到递归,虽然逐渐摸到有些门道,但毕竟每道题都是变幻莫测。 这里贴的是骨头的诱惑,现在算法问题也要走向标题党了。实际上是在图论中的DFS(Depth First Search), 深度优先搜索,…
The doggie found a bone in an ancient maze, which fascinated him a lot. However, when he picked it up, the maze began to shake, and the doggie could feel the ground sinking. He realized that the bone was a trap, and he tried desperately to get out of this maze. The maze was a ...
Problem Description The doggie found a bone in an ancient maze, which fascinated him a lot. However, when he picked it up, the maze began to shake, and the doggie could feel the ground sinking. He realized that the bone was a trap, and he tried desperately to get out of this maze. ...
Problem Description The doggie found a bone in an ancient maze, which fascinated him a lot. However, when he picked it up, the maze began to shake, an
例题:ZOJ Problem Set - 2110 Tempter of the Bone 题目意思是讲有一只狗要吃骨头,结果进入了一个迷宫陷阱,迷宫里每走过一个地板费时一秒,该地板 就会在下一秒塌陷,所以你不能在该地板上逗留。迷宫里面有一个门,只能在特定的某一秒才能打开,让狗逃出去。现在题目告诉你迷宫的大小和门打开的时间,问你狗可不可...
hdu 1010 Tempter of the Bone (dfs+奇偶剪枝) 小记:最开始以为是T时间内,用bfs WA了,后来知道是刚好T时间,然后就用dfs, 相当于暴力了,然后简单的dfs提交TLE, 必须剪枝。 首先判最少需要的时间是否有,没有就不用继续了,而如果有,那么因为我们是要花掉T时间刚好到达,那么我们先保证能走到终点的时间,然后...
1010 Tempter of the BoneTempter of the Bone Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 5476 Accepted Submission(s): 1466 Problem Description The doggie found a bone in an ancient maze, which fascinated him a lot. However, when...
题目链接:点击这里 题意:给定 的矩阵,'.' 表示可以走,'X' 表示不可走,从 出发,问能否在 时刻恰好到达 。 两个可行性剪枝: 当前走了 步,如果 ,即已经走...
<string.h>usingnamespacestd;intabs(intfx);voiddfs(intx,inty,intstep);charmaze[51][51],book[51][51];intendx,endy;intn,m,t,flag,wall;intmain(){intbeginx,beginy,step=0;while(cin>>n>>m>>t){if(n==0&&m==0)break;flag=0;wall=0;memset(book,0,sizeof(book));//mdzz,废了一...
The doggie found a bone in an ancient maze, which fascinated him a lot. However, when he picked it up, the maze began to shake, and the doggie could feel the ground sinking. He realized that the bone was a trap, and he tried desperately to get out of this maze.The maze was a re...