codeforce1028A Find Square
link:http://codeforces.com/problemset/problem/1028/A
让找出字符串矩阵中B的中心
模拟即可,以下思路值得学习
#include<bits/stdc++.h> using namespace std; int X,Y,n,m,cnt;char s[1005]; int main() { scanf("%d%d",&n,&m); for (int i=1;i<=n;i++) { scanf("%s",s+1); for (int j=1;j<=m;j++) if (s[j]=='B') cnt++,X+=i,Y+=j; } X/=cnt;Y/=cnt; printf("%d %d\n",X,Y); return 0; }