Submission #503302

#	Time	Username	Problem	Language	Result	Execution time	Memory
503302		rainboy	Lampice (COCI21_lampice)	C11	50 / 50	1 ms	276 KiB

Main

#include <stdio.h>
#include <string.h>

#define N	50

int max(int a, int b) { return a > b ? a : b; }

void zzz(int *aa, int *zz, int n) {
	int i, l, r;

	memset(zz, 0, n * sizeof *zz);
	for (i = 1, l = 0, r = 0; i < n; i++)
		if (i + zz[i - l] < r)
			zz[i] = zz[i - l];
		else {
			l = i, r = max(r, i);
			while (r < n && aa[r] == aa[r - l])
				r++;
			zz[i] = r - l;
		}
}

int main() {
	static int aa[N], zz[N];
	int n, k, h, i, j;

	scanf("%d%d", &n, &k);
	for (i = 0; i < n; i++)
		scanf("%d", &aa[i]);
	for (i = 0; i < n; i++) {
		zzz(aa + i, zz, n - i);
		for (j = i + 1; j < n; j++)
			if (zz[j - i] >= (j - i) * (k - 1)) {
				printf("%d\n", j - i);
				for (h = i; h < j; h++)
					printf("%d ", aa[h]);
				printf("\n");
				return 0;
			}
	}
	printf("-1\n");
	return 0;
}

Compilation message (stderr)

Main.c: In function 'main':
Main.c:27:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   27 |  scanf("%d%d", &n, &k);
      |  ^~~~~~~~~~~~~~~~~~~~~
Main.c:29:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   29 |   scanf("%d", &aa[i]);
      |   ^~~~~~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 15 / 15
• Subtask 3: 25 / 25