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QOJ

ID	题目	提交者	结果	用时	内存	语言	文件大小	提交时间	测评时间
#613397	#6394. Turn on the Light	liaoyingyu	ML	1ms	3688kb	C++17	617b	2024-10-05 13:59:37	2024-10-05 14:02:13

Judging History

你现在查看的是最新测评结果

[2024-10-05 14:02:13]
评测

测评结果：ML
用时：1ms
内存：3688kb

查看

[2024-10-05 13:59:37]
提交

answer

#include<bits/stdc++.h>
using namespace std;
#define int long long
int s = 0;
int pre = 0;
void beizeng(int start, int end) {
	int now = 1;
	int shuru;
	while (1) {
		if (s+now > end) {
			s += now / 2;
			beizeng(now / 2+1, end);
			return;
		}
		cout << '?' << ' ' << s+now << endl;
		cin >> shuru;
		if (shuru == pre) {
			cout << '!' << ' ' << s+now << endl;
			return;
		}
		else if (shuru > pre) {
			pre = shuru;
			now *= 2;
		}
		else {
			s += now / 2;
			pre = shuru;
			beizeng(now / 2+1, now-1);
			return;
		}
	}
}
signed main() {
	int n;
	cin >> n;
	beizeng(1, n);
}

源文件, 语言: C++17

详细

Test #1:

score: 100

Accepted

time: 1ms

memory: 3540kb

input:

output:

? 1
? 2
? 3
! 3

result:

ok Correct position at 3

Test #2:

score: 0

Accepted

time: 1ms

memory: 3592kb

input:

output:

? 1
? 2
? 4
? 8
? 5
? 6
! 6

result:

ok Correct position at 6

Test #3:

score: 0

Accepted

time: 1ms

memory: 3688kb

input:

output:

? 1
? 2
? 4
? 8
? 5
? 6
! 6

result:

ok Correct position at 6

Test #4:

score: 0

Accepted

time: 1ms

memory: 3604kb

input:

output:

? 1
? 2
? 4
? 8
? 5
? 6
! 6

result:

ok Correct position at 6

Test #5:

score: 0

Accepted

time: 0ms

memory: 3540kb

input:

output:

? 1
? 2
? 4
? 5
? 6
? 7
! 7

result:

ok Correct position at 7

Test #6:

score: 0

Accepted

time: 1ms

memory: 3600kb

input:

output:

? 1
? 2
? 4
? 5
! 5

result:

ok Correct position at 5

Test #7:

score: 0

Accepted

time: 1ms

memory: 3612kb

input:

output:

? 1
? 2
? 4
? 5
! 5

result:

ok Correct position at 5

Test #8:

score: 0

Accepted

time: 1ms

memory: 3680kb

input:

output:

? 1
? 2
? 4
! 4

result:

ok Correct position at 4

Test #9:

score: 0

Accepted

time: 1ms

memory: 3600kb

input:

3
1
1

output:

? 1
? 2
! 2

result:

ok Correct position at 2

Test #10:

score: 0

Accepted

time: 0ms

memory: 3688kb

input:

2
1
1

output:

? 1
? 2
! 2

result:

ok Correct position at 2

Test #11:

score: 0

Accepted

time: 1ms

memory: 3684kb

input:

1
0

output:

? 1
! 1

result:

ok Correct position at 1

Test #12:

score: -100

Memory Limit Exceeded

input:

output: