题意  一仅仅狗要逃离迷宫  能够往上下左右4个方向走  每走一步耗时1s  每一个格子仅仅能走一次且迷宫的门仅仅在t时刻打开一次  问狗是否有可能逃离这个迷宫 直接DFS  直道找到满足条件的路径  或者走全然部可能路径都不满足 注意剪枝  当前位置为(r,c)  终点为(ex,ey) 剩下的时间为lt  当前点到终点的直接距离为  d=(ex-r)+(ey-c)   若多走的时间rt=lt-d<0 或为奇数时  肯定是不可能的  能够自己在纸上画一下 每一个点仅仅能走一次的图  走弯路的话多…

Tempter of the Bone Time Limit: 2 Seconds      Memory Limit: 65536 KB 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 rea…

Tempter of the Bone Time Limit: 2 Seconds      Memory Limit: 65536 KB 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 rea…

点我看题目 题意 : 一个N×M的迷宫,D是门的位置,门会在第T秒开启,而开启时间小于1秒,问能否在T秒的时候到达门的位置,如果能输出YES,否则NO. 思路 :DFS一下就可以,不过要注意下一终止条件再判断一下时间,还有因为题目中要求走过的路要变成墙,所以每次走的时候要注意一下把路变成墙,但是如果你不走这条路了,要记得变回来.还有这个题必须剪枝,否则超时超到疯啊,DFS函数中那个剪枝不怎么好想,T-t代表的是在当前位置还需要T-t步路.而fabs(ex-x)+fabs(ey-y)指的是当前位置…

题目链接:http://ac.jobdu.com/problem.php?pid=1461 详解链接:https://github.com/zpfbuaa/JobduInCPlusPlus 参考代码: // // 1461 Tempter of the bone.cpp // Jobdu // // Created by PengFei_Zheng on 24/04/2017. // Copyright © 2017 PengFei_Zheng. All rights reserved. //…

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 despe…

http://acm.hdu.edu.cn/showproblem.php?pid=1010   //题目链接 http://ycool.com/post/ymsvd2s//一个很好理解剪枝思想的博客 http://blog.csdn.net/chyshnu/article/details/6171758//一个很好举例的博客 Problem Description The doggie found a bone in an ancient maze, which fascinated him…

Tempter of the Bone Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) 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…

M - Tempter of the Bone Time Limit:1000MS     Memory Limit:32768KB     64bit IO Format:%I64d & %I64u 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 d…

Tempter of the Bone 直接上中文了 Descriptions: 暑假的时候,小明和朋友去迷宫中寻宝.然而,当他拿到宝贝时,迷宫开始剧烈震动,他感到地面正在下沉,他们意识到这是一个陷阱!他们想尽一切办法逃出去.迷宫是一个大小为 N*M 的长方形,迷宫中有一扇门.一开始,门是关着的,他会在第 t 秒的时间打开.因为,小明和朋友必须在第 t 秒到大门口.每一秒,他都可以向上下左右四个方向移动一个点.一旦他移动了,他刚才所在的点就消失,(这意味着他不能回到他已经走过的点).他不能在一个…