这是一个立方体的空间的路径搜索问题,若可达输出步数,不可达输出“NO ROUTE” 一道……课后题 输入的话我是按字符输入这个空间的 然后普通的bfs,一个方向数组,一个空间数组(因为只用一次,懒的再开一个,反正标记了,就是不能走的意思)引入某大佬的函数返回值做条件判重 需要注意的是,注意它的空间x,y,z轴分别怎么表示,我是通过建模型搞的(肯定有简单的方法) 下面是代码(西加加) #include <iostream>#include <string>#include <q…

 最小点覆盖数==最大匹配数 Asteroids Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 12678 Accepted: 6904 Description Bessie wants to navigate her spaceship through a dangerous asteroid field in the shape of an N x N grid (1 <= N <= 500). The grid co…

Asteroids Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 16211   Accepted: 8819 Description Bessie wants to navigate her spaceship through a dangerous asteroid field in the shape of an N x N grid (1 <= N <= 500). The grid contains K as…

Asteroids! Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 3159    Accepted Submission(s): 2106 Problem Description You're in space.You want to get home.There are asteroids.You don't want to hit…

                                                                  Asteroids Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 20748   Accepted: 11278 Description Bessie wants to navigate her spaceship through a dangerous asteroid field in…

题目很简单,但是需要推到出二分图最大匹配 = 最小覆盖 最小覆盖:证明过程http://blog.sina.com.cn/s/blog_51cea4040100h152.html Description Bessie wants to navigate her spaceship through a dangerous asteroid field in the shape of an N x N grid (1 <= N <= 500). The grid contains K astero…

http://poj.org/problem?id=3041 Asteroids Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 17543   Accepted: 9548 Description Bessie wants to navigate her spaceship through a dangerous asteroid field in the shape of an N x N grid (1 <= N <…

http://poj.org/problem?id=3041 Asteroids Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 12601   Accepted: 6849 Description Bessie wants to navigate her spaceship through a dangerous asteroid field in the shape of an N x N grid (1 <= N <…

Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 2664    Accepted Submission(s): 1794 Problem Description You're in space. You want to get home. There are asteroids. You don't want to hit them.…

Description Bessie wants to navigate her spaceship through a dangerous asteroid field in the shape of an N x N grid (1 <= N <= 500). The grid contains K asteroids (1 <= K <= 10,000), which are conveniently located at the lattice points of the…