http://codeforces.com/contest/549/problem/A
做的实在是太暴力了，嘿嘿

#include <iostream>
#include <cstring>
using namespace std;
char st[55][55];
int main()
{
    int m,n;
    while(cin>>m>>n)
    {
        memset(st,0,sizeof(st));
        int sum=0;
        for(int i=0; i<m; i++)
        {
            for(int j=0; j<n; j++)
            {
                cin>>st[i][j];
            }
        }
        for(int i=0; i<m; i++)
        {
            for(int j=0; j<n; j++)
            {
                if(st[i][j]=='f'&&st[i][j+1]=='a'&&st[i+1][j]=='c'&&st[i+1][j+1]=='e')
                sum++;
                if(st[i][j]=='f'&&st[i][j+1]=='a'&&st[i+1][j]=='e'&&st[i+1][j+1]=='c')
                sum++;
                if(st[i][j]=='f'&&st[i][j+1]=='c'&&st[i+1][j]=='a'&&st[i+1][j+1]=='e')
                sum++;
                if(st[i][j]=='f'&&st[i][j+1]=='c'&&st[i+1][j]=='e'&&st[i+1][j+1]=='a')
                sum++;
                if(st[i][j]=='f'&&st[i][j+1]=='e'&&st[i+1][j]=='a'&&st[i+1][j+1]=='c')
                sum++;
                if(st[i][j]=='f'&&st[i][j+1]=='e'&&st[i+1][j]=='c'&&st[i+1][j+1]=='a')//f
                sum++;
                if(st[i][j]=='a'&&st[i][j+1]=='f'&&st[i+1][j]=='c'&&st[i+1][j+1]=='e')
                sum++;
                if(st[i][j]=='a'&&st[i][j+1]=='f'&&st[i+1][j]=='e'&&st[i+1][j+1]=='c')
                sum++;
                if(st[i][j]=='a'&&st[i][j+1]=='e'&&st[i+1][j]=='c'&&st[i+1][j+1]=='f')
                sum++;
                if(st[i][j]=='a'&&st[i][j+1]=='e'&&st[i+1][j]=='f'&&st[i+1][j+1]=='c')
                sum++;
                if(st[i][j]=='a'&&st[i][j+1]=='c'&&st[i+1][j]=='f'&&st[i+1][j+1]=='e')
                sum++;
                if(st[i][j]=='a'&&st[i][j+1]=='c'&&st[i+1][j]=='e'&&st[i+1][j+1]=='f')//a
                sum++;
                if(st[i][j]=='c'&&st[i][j+1]=='a'&&st[i+1][j]=='f'&&st[i+1][j+1]=='e')
                sum++;
                if(st[i][j]=='c'&&st[i][j+1]=='a'&&st[i+1][j]=='e'&&st[i+1][j+1]=='f')
                sum++;
                if(st[i][j]=='c'&&st[i][j+1]=='e'&&st[i+1][j]=='a'&&st[i+1][j+1]=='f')
                sum++;
                if(st[i][j]=='c'&&st[i][j+1]=='e'&&st[i+1][j]=='f'&&st[i+1][j+1]=='a')
                sum++;
                if(st[i][j]=='c'&&st[i][j+1]=='f'&&st[i+1][j]=='a'&&st[i+1][j+1]=='e')
                sum++;
                if(st[i][j]=='c'&&st[i][j+1]=='f'&&st[i+1][j]=='e'&&st[i+1][j+1]=='a')//c
                sum++;
                if(st[i][j]=='e'&&st[i][j+1]=='f'&&st[i+1][j]=='c'&&st[i+1][j+1]=='a')
                sum++;
                if(st[i][j]=='e'&&st[i][j+1]=='f'&&st[i+1][j]=='a'&&st[i+1][j+1]=='c')
                sum++;
                if(st[i][j]=='e'&&st[i][j+1]=='c'&&st[i+1][j]=='a'&&st[i+1][j+1]=='f')
                sum++;
                if(st[i][j]=='e'&&st[i][j+1]=='c'&&st[i+1][j]=='f'&&st[i+1][j+1]=='a')
                sum++;
                if(st[i][j]=='e'&&st[i][j+1]=='a'&&st[i+1][j]=='f'&&st[i+1][j+1]=='c')
                sum++;
                if(st[i][j]=='e'&&st[i][j+1]=='a'&&st[i+1][j]=='c'&&st[i+1][j+1]=='f')
                sum++;
            }
        }
        cout<<sum<<endl;
    }
    return 0;
}