C++

注意在输入char型数据时，需使用getchar()吸收换行符。

#include <iostream>
#include <cmath>
#include <algorithm>
#include <vector>
#include <cstdio>

using namespace std;
char a[55][55];

int main(){
    int n, m;
    cin >> n >> m;
    getchar();
    for(int i = 0; i < n; ++i){
        for(int j = 0; j < m; ++j){
            cin >> a[i][j];
        }
        getchar();
    }
    int cnt = 0;
    for(int i = 0; i + 1 < n; ++i){
        for(int j = 0; j + 1 < m; ++j){
            if(a[i][j] != 'f' && a[i + 1][j] != 'f' && a[i][j + 1] != 'f' && a[i + 1][j + 1] != 'f')
                continue;
            if(a[i][j] != 'a' && a[i + 1][j] != 'a' && a[i][j + 1] != 'a' && a[i + 1][j + 1] != 'a')
                continue;
            if(a[i][j] != 'c' && a[i + 1][j] != 'c' && a[i][j + 1] != 'c' && a[i + 1][j + 1] != 'c')
                continue;
            if(a[i][j] != 'e' && a[i + 1][j] != 'e' && a[i][j + 1] != 'e' && a[i + 1][j + 1] != 'e')
                continue;
            ++cnt;
        }
    }
    cout << cnt;
    return 0;
}