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Submission #949794

# Submission time Handle Problem Language Result Execution time Memory
949794 2024-03-19T17:49:19 Z rainboy 양말 찾기 (KPI13_socks) C++17
0 / 1
 2378 ms 10236 KB 
#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.cpp: In function 'int main()':
socks.cpp:9:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |  scanf("%d", &n);
      |  ~~~~~^~~~~~~~~~
socks.cpp:12:8: warning: ignoring return value of 'int scanf(const char*, ...)' 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 344 KB Output is correct
2 Correct 0 ms 360 KB Output is correct
3 Correct 0 ms 348 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 344 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 0 ms 344 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 2378 ms 396 KB Output is correct
12 Correct 2347 ms 596 KB Output is correct
13 Correct 2347 ms 596 KB Output is correct
14 Correct 92 ms 2168 KB Output is correct
15 Correct 92 ms 2128 KB Output is correct
16 Runtime error 159 ms 10236 KB Memory limit exceeded
17 Halted 0 ms 0 KB -