题解 | 扫雷

#include <stdio.h>

int main() {
    char x;
    int n, m;
    scanf("%d %d", &n, &m);  
    getchar();  // 清除输入缓冲区中的换行符

    char a[n + 2][m + 2];
    for (int i = 0; i < n + 2; i++) {
        for (int j = 0; j < m + 2; j++) {
            a[i][j] = '0';  
        }
    }

    for (int i = 1; i <= n; i++) {
        for (int j = 1; j <= m; j++) {
            scanf("%c", &x);
            a[i][j] = x;
        }
        getchar();  
    }

    for (int i = 1; i <= n; i++) {
        for (int j = 1; j <= m; j++) {
            if (a[i][j] == '*') {
                continue;  
            } else {
                int cnt = 0;
                if (a[i - 1][j - 1] == '*') cnt++;
                if (a[i - 1][j] == '*') cnt++;
                if (a[i - 1][j + 1] == '*') cnt++;
                if (a[i][j - 1] == '*') cnt++;
                if (a[i][j + 1] == '*') cnt++;
                if (a[i + 1][j - 1] == '*') cnt++;
                if (a[i + 1][j] == '*') cnt++;
                if (a[i + 1][j + 1] == '*') cnt++;

                a[i][j] = '0' + cnt;  
            }
        }
    }

    for (int i = 1; i <= n; i++) {
        for (int j = 1; j <= m; j++) {
            printf("%c", a[i][j]);
        }
        printf("\n");
    }

    return 0;
}