题解 | 扫雷

#include <stdio.h>
int main() {
    int a, b;
    char s[1003][1003],s1[1003][1003];
    scanf("%d %d", &a, &b);
    for (int i = 1; i <= a; i++) {
        getchar();
        for (int j = 1; j <= b; j++) {
            scanf("%c", &s[i][j]);
        }
    }
    for (int i = 1; i <= a; i++) {
        for (int j = 1; j <= b; j++) {
            if (s[i][j] == '*') s1[i][j] = '*';
            else{
                int count=0;
                for(int dx=-1;dx<=1;dx++){
                    for(int dy=-1;dy<=1;dy++){
                        if(dx==0&&dy==0) continue;
                        if(s[i+dx][j+dy]=='*') count++;
                    }
                }
                s1[i][j]=count+'0';
            }
        }
    }
    for (int i = 1; i <= a; i++) {
        for (int j = 1; j <= b; j++) {
            printf("%c",s1[i][j]);
        }
        printf("\n");
    }
    return 0;
}