Algorithm/codeup 1097.c at master · downpour07/Algorithm · GitHub

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#include <stdio.h>

int main()
{
    int a[20][20] = { 0 };
    int i, j, n, x, y;
    for (i = 1; i <= 19; i++)
    {
        for (j = 1; j <= 19; j++) {
            scanf("%d", &a[i][j]);
        }
    }
    scanf("%d", &n);
    for (i = 1; i <= n; i++)
    {
        scanf("%d %d", &x, &y);
        for (j = 1; j <= 19; j++)
        {
            if (a[x][j] == 0) {
                a[x][j] = 1;
            }
            else {
                a[x][j] = 0;
            }
        }
        for (j = 1; j <= 19; j++)
        {
            if (a[j][y] == 0) {
                a[j][y] = 1;
            }
            else {
                a[j][y] = 0;
            }
        }
    }
    for (i = 1; i <= 19; i++)
    {
        for (j = 1; j <= 19; j++) {
            printf("%d ", a[i][j]);
        }
        printf("\n");
    }
}