Submission #490926

#	Time	Username	Problem	Language	Result	Execution time	Memory
490926		rainboy	Izlet (COI19_izlet)	C11	18 / 100	666 ms	53068 KiB

izlet

#include <stdio.h>

#define N	3000

int main() {
	static int kk[N][N], cc[N], ii[N];
	int n, n_, h, i, j, s, c;

	scanf("%d%d", &s, &n);
	if (s != 1)
		return 0;
	for (i = 0; i < n; i++)
		for (j = 0; j < n; j++)
			scanf("%d", &kk[i][j]);
	n_ = 0;
	for (i = 0, c = 1; i < n; i++) {
		if (cc[i])
			continue;
		cc[i] = c, ii[n_++] = i;
		for (j = i + 1; j < n; j++)
			if (kk[i][j] == 1)
				cc[j] = c, ii[n_++] = j;
		c ^= 3;
	}
	for (i = 0; i < n; i++)
		printf("%d ", cc[i]);
	printf("\n");
	for (h = 0; h < n - 1; h++)
		printf("%d %d\n", ii[h] + 1, ii[h + 1] + 1);
	return 0;
}

Compilation message (stderr)

izlet.c: In function 'main':
izlet.c:9:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |  scanf("%d%d", &s, &n);
      |  ^~~~~~~~~~~~~~~~~~~~~
izlet.c:14:4: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 |    scanf("%d", &kk[i][j]);
      |    ^~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 18 / 18
• Subtask 2: 0 / 25
• Subtask 3: 0 / 57