Submission #949785

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
949785	2024-03-19T17:37:27 Z	rainboy	양말 찾기 (KPI13_socks)	C	0 / 1	2468 ms	65536 KB

socks

#include <stdio.h>

#define L	31	/* L = ceil(log2(2 * 10^9 + 1)) */

int main() {
	static int xx[L];
	int n, l, a, b, x, tmp;

	scanf("%d", &n);
	x = 0;
	while (n--) {
		scanf("%d", &a);
		x ^= a;
		for (l = 0; l < L; l++)
			if ((a & 1 << l) != 0)
				xx[l] ^= a;
	}
	a = 0, b = x;
	for (l = 0; l < L; l++)
		if (xx[l] != 0 && xx[l] != x) {
			a = xx[l], b = x ^ xx[l];
			break;
		}
	if (a > b)
		tmp = a, a = b, b = tmp;
	printf("%d %d\n", a, b);
	return 0;
}

Compilation message

socks.c: In function 'main':
socks.c:9:2: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |  scanf("%d", &n);
      |  ^~~~~~~~~~~~~~~
socks.c:12:3: warning: ignoring return value of 'scanf' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |   scanf("%d", &a);
      |   ^~~~~~~~~~~~~~~

Subtask #1

0 / 1.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	504 KB	Output is correct
2	Correct	1 ms	344 KB	Output is correct
3	Correct	1 ms	344 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Runtime error	2468 ms	65536 KB	Memory limit exceeded
12	Halted	0 ms	0 KB	-