只要根据格子的方向选择下一步搜索的方向即可,退出条件是出界或者进入环中,进入环中的条件也很好确定,就是一个点走了两次,由于路径是固定的,这就会陷入无限循环. #include<iostream> #include<cstdio> #include<cstring> #define maxn 1005 using namespace std; int n,m,c; int k; int step[maxn][maxn]; char map[maxn][maxn]; voi…
Robot Game 题目连接: http://acm.hust.edu.cn/vjudge/contest/122701#problem/B Description Sgeoghy has addicted herself to an interesting computer game! In this game, she needs to control a robot to pick up a required number of components. There are a lot o…
我看大多数人的博客只说了一句:找规律得答案为(n + m) / gcd(n, m) 不过神题的题解还须神人写.. We can associate at each cell a base 3-number, the log3(R) most significant digits is the index of the row of the cell and the log3(C) least significant digits is the index of his column. What…