题解 | #二维数组操作#

#include <stdio.h>
#include <stdbool.h>

bool checkvalid(int m, int n, int x, int y) {
    return ((x >= 0) && (x <= m - 1) && (y >= 0) && (y <= n - 1));
}
int main() {
    int m, n, x1, y1, x2, y2, x, y;
    while (scanf("%d %d", &m, &n) != EOF) {
        if((m > 0) && (m <= 9) && (n > 0) && (n <= 9)) printf("0\n");
        else printf("-1\n");
        scanf("%d %d %d %d", &x1, &y1, &x2, &y2);
        if(checkvalid(m, n, x1, y1) && checkvalid(m, n, x2, y2)) printf("0\n");
        else printf("-1\n");
        scanf("%d", &x);
        if(m > 0 && m < 9 && m > x) printf("0\n");
        else printf("-1\n");
        scanf("%d", &y);
        if(n > 0 && n < 9 && n > y) printf("0\n");
        else printf("-1\n");
        scanf("%d %d", &x, &y);
        if(checkvalid(m, n, x, y)) printf("0\n");
        else printf("-1\n");
    }
    return 0;
}