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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#492938#4912. WereYouLastTrueFalse100 ✓4830ms5124kbC++14662b2024-07-26 17:20:522024-07-26 17:20:52

Judging History

你现在查看的是最新测评结果

  • [2024-07-26 17:20:52]
  • 评测
  • 测评结果:100
  • 用时:4830ms
  • 内存:5124kb
  • [2024-07-26 17:20:52]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
bool query(int);
void modify(int, bool);
bool WereYouLast(int n, int m) {
	int dick = __lg(n);
	if (m == 10) {
		int tot = 0;
		for (int i = 1; i <= 10; ++i)
			tot += query(i) << i - 1;
		if (++tot == n) return 1;
		for (int i = 1; i <= 10; ++i) {
			modify(i, tot >> i - 1 & 1);
		}
		return 0;
	}
	int tot = 0;
	for (int i = 1; i <= 5; ++i)
		tot += query(i) << i - 1;
	if (tot == 31) return 1;
	++tot;
	if (!query(tot + 5)) {
		modify(tot + 5, 1);
		tot = tot == dick ? 31 : 0;
	} else modify(tot + 5, 0);
	for (int i = 1; i <= 5; ++i) {
		modify(i, tot >> i - 1 & 1);
	}
	return 0;
}

Details

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Subtask #1:

score: 10
Accepted

Test #1:

score: 10
Accepted
time: 1ms
memory: 3820kb

input:

1024 10

output:

12345876 10 10

result:

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

Subtask #2:

score: 20
Accepted

Test #2:

score: 20
Accepted
time: 6ms
memory: 5124kb

input:

65536 100000

output:

12345876 6 6

result:

ok Correct Answer.
C1 = 6.
C2 = 6.

Subtask #3:

score: 30
Accepted

Test #3:

score: 30
Accepted
time: 77ms
memory: 4916kb

input:

1048576 100000

output:

12345876 6 6

result:

ok Correct Answer.
C1 = 6.
C2 = 6.

Subtask #4:

score: 40
Accepted

Test #4:

score: 40
Accepted
time: 4830ms
memory: 4976kb

input:

67108864 100000

output:

12345876 6 6

result:

ok Correct Answer.
C1 = 6.
C2 = 6.