QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#505692#4912. WereYouLastliuzimingc10 4321ms5056kbC++14537b2024-08-05 08:55:572024-08-05 08:55:58

Judging History

你现在查看的是最新测评结果

  • [2024-08-05 08:55:58]
  • 评测
  • 测评结果:10
  • 用时:4321ms
  • 内存:5056kb
  • [2024-08-05 08:55:57]
  • 提交

answer

bool query(int);

void modify(int, bool);

bool WereYouLast(int n, int m) {
	if (m == 10) {
		int x = 0;
		for (int i = 0; i < 10; i++) x |= query(i + 1) << i;
		if (x == n - 1) return true;
		x++;
		for (int i = 0; i < 10; i++) modify(i + 1, x >> i & 1);
		return false;
	}
	int x = 0;
	for (int i = 0; i < 5; i++) x |= query(i + 1) << i;
	if ((1 << x) == n) return true;
	bool f = query(x + 6);
	modify(x + 6, !f);
	if (f) x++;
	else x = 0;
	for (int i = 0; i < 5; i++) modify(i + 1, x >> i & 1);
	return false;
}

Details

Tip: Click on the bar to expand more detailed information

Subtask #1:

score: 10
Accepted

Test #1:

score: 10
Accepted
time: 1ms
memory: 3812kb

input:

1024 10

output:

12345876 10 10

result:

ok Correct Answer.
C1 = 10.
C2 = 10.

Subtask #2:

score: 0
Wrong Answer

Test #2:

score: 0
Wrong Answer
time: 2ms
memory: 5056kb

input:

65536 100000

output:

12345876 -3 65536
12345876 -3 65536

result:

wrong answer Wrong Answer At Query 65536.

Subtask #3:

score: 0
Wrong Answer

Test #3:

score: 0
Wrong Answer
time: 65ms
memory: 4908kb

input:

1048576 100000

output:

12345876 -3 1048576
12345876 -3 1048576

result:

wrong answer Wrong Answer At Query 1048576.

Subtask #4:

score: 0
Wrong Answer

Test #4:

score: 0
Wrong Answer
time: 4321ms
memory: 4968kb

input:

67108864 100000

output:

12345876 -3 67108864
12345876 -3 67108864

result:

wrong answer Wrong Answer At Query 67108864.