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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#324144#8239. Mysterious Treeucup-team1303#AC ✓6ms3684kbC++201.5kb2024-02-10 16:20:242024-02-10 16:20:25

Judging History

你现在查看的是最新测评结果

  • [2024-02-10 16:20:25]
  • 评测
  • 测评结果:AC
  • 用时:6ms
  • 内存:3684kb
  • [2024-02-10 16:20:24]
  • 提交

answer

// MagicDark
#include <bits/stdc++.h>
#define debug cerr << "[" << __LINE__ << "] "
#define SZ(x) (int) x.size() - 1
#define all(x) x.begin(), x.end()
#define ms(x, y) memset(x, y, sizeof x)
#define F(i, x, y) for (int i = (x); i <= (y); i++)
#define DF(i, x, y) for (int i = (x); i >= (y); i--)
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
template <typename T> inline void chkmax(T &x, T y) {x = max(x, y);}
template <typename T> inline void chkmin(T &x, T y) {x = min(x, y);}
template <typename T> inline void read(T &x) {
	x = 0; int f = 1; char c = getchar();
	for (; !isdigit(c); c = getchar()) if (c == '-') f = -f;
	for (; isdigit(c); c = getchar()) x = (x << 1) + (x << 3) + (c ^ 48);
	x *= f;
}
bool ask(int x, int y) {
	cout << "? " << x << " " << y << endl;
	int t;
	cin >> t;
	return t;
}
void zhk() {
	int n;
	cin >> n;
	F(i, 1, n) {
		int t = i == n ? i - 1 : i + 1;
		if (ask(i, t)) {
			int j = 1;
			while (j == i || j == t) j++;
			if (ask(j, i)) {
				j++;
				while (j == i || j == t) j++;
				if (ask(j, i)) {
					cout << "! 2" << endl;
				} else {
					cout << "! 1" << endl;
				}
			} else if (ask(j, t)) {
				j++;
				while (j == i || j == t) j++;
				if (ask(j, t)) {
					cout << "! 2" << endl;
				} else {
					cout << "! 1" << endl;
				}
			} else cout << "! 1" << endl;
			return;
		}
		i++;
	}
	cout << "! 1" << endl;
}
signed main() {
	int _ = 1;
	cin >> _;
	while (_--) zhk();
	return 0;
}
/* why?
*/

这程序好像有点Bug,我给组数据试试?

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 3592kb

input:

2
4
1
0
1
0
4
0
1
1
1

output:

? 1 2
? 3 1
? 3 2
? 4 2
! 1
? 1 2
? 3 4
? 1 3
? 2 3
! 2

result:

ok Correct (2 test cases)

Test #2:

score: 0
Accepted
time: 4ms
memory: 3556kb

input:

87
13
0
0
0
0
0
1
0
1
1
15
0
0
0
0
0
0
1
1
1
7
0
0
0
1
1
1
15
0
0
0
1
0
0
19
0
0
0
0
0
1
1
1
20
0
0
0
0
0
0
0
0
0
0
7
0
0
1
0
1
1
20
0
0
0
0
0
0
0
1
1
1
17
0
0
0
0
0
0
0
0
0
11
1
0
0
14
0
0
0
0
0
0
0
13
0
0
0
0
0
0
0
18
0
0
0
0
0
1
0
1
1
14
0
1
0
1
1
20
0
0
0
0
1
0
0
11
0
0
0
1
0
0
11
0
1
0
0
8
0
1
...

output:

? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 11 12
? 1 11
? 1 12
? 2 12
! 2
? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 11 12
? 13 14
? 1 13
? 2 13
! 2
? 1 2
? 3 4
? 5 6
? 7 6
? 1 7
? 2 7
! 2
? 1 2
? 3 4
? 5 6
? 7 8
? 1 7
? 1 8
! 1
? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 11 12
? 1 11
? 2 11
! 2
? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 1...

result:

ok Correct (87 test cases)

Test #3:

score: 0
Accepted
time: 0ms
memory: 3588kb

input:

135
9
1
0
0
6
0
0
0
11
0
0
0
0
1
0
0
4
1
1
0
10
0
0
0
0
1
1
1
9
0
0
0
1
1
1
9
0
0
1
0
1
1
6
0
0
0
9
0
0
0
1
1
1
11
0
0
0
0
1
0
0
4
0
0
4
1
1
1
8
0
0
0
0
5
0
0
1
0
0
7
1
1
0
11
0
0
0
0
1
0
1
1
4
1
1
1
6
1
1
1
9
0
0
1
1
1
4
1
0
1
1
8
1
0
0
9
0
0
1
0
1
1
7
0
0
1
0
0
4
1
1
1
8
0
0
0
0
11
0
0
0
0
1
1
1
8...

output:

? 1 2
? 3 1
? 3 2
! 1
? 1 2
? 3 4
? 5 6
! 1
? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 1 9
? 1 10
! 1
? 1 2
? 3 1
? 4 1
! 1
? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 1 9
? 2 9
! 2
? 1 2
? 3 4
? 5 6
? 7 8
? 1 7
? 2 7
! 2
? 1 2
? 3 4
? 5 6
? 1 5
? 1 6
? 2 6
! 2
? 1 2
? 3 4
? 5 6
! 1
? 1 2
? 3 4
? 5 6
? 7 8
? 1 7
? 2 7
!...

result:

ok Correct (135 test cases)

Test #4:

score: 0
Accepted
time: 4ms
memory: 3592kb

input:

136
8
0
0
0
1
0
1
1
5
1
0
1
1
11
0
0
1
0
0
10
1
0
0
6
0
0
0
9
0
0
1
0
1
1
7
0
1
1
1
10
0
0
1
0
1
1
7
0
0
1
1
1
9
0
0
1
1
1
5
0
0
1
1
1
7
0
0
0
0
10
0
0
1
0
1
1
6
0
1
0
0
6
0
0
1
0
1
0
6
0
1
0
1
1
10
0
1
1
1
9
0
0
1
1
1
5
0
1
1
1
6
0
0
1
1
1
4
0
0
5
0
1
1
1
4
1
0
1
1
7
0
0
0
1
1
1
10
0
0
0
1
1
1
8
0
...

output:

? 1 2
? 3 4
? 5 6
? 7 8
? 1 7
? 1 8
? 2 8
! 2
? 1 2
? 3 1
? 3 2
? 4 2
! 2
? 1 2
? 3 4
? 5 6
? 1 5
? 1 6
! 1
? 1 2
? 3 1
? 3 2
! 1
? 1 2
? 3 4
? 5 6
! 1
? 1 2
? 3 4
? 5 6
? 1 5
? 1 6
? 2 6
! 2
? 1 2
? 3 4
? 1 3
? 2 3
! 2
? 1 2
? 3 4
? 5 6
? 1 5
? 1 6
? 2 6
! 2
? 1 2
? 3 4
? 5 6
? 1 5
? 2 5
! 2
? 1 2
...

result:

ok Correct (136 test cases)

Test #5:

score: 0
Accepted
time: 2ms
memory: 3524kb

input:

5
100
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
758
0
0
0
0
0
0
0
0
0
1
0
1
1
70
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
65
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
5
0
0
1
1
1

output:

? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 11 12
? 13 14
? 15 16
? 17 18
? 19 20
? 21 22
? 23 24
? 25 26
? 27 28
? 29 30
? 31 32
? 33 34
? 35 36
? 37 38
? 39 40
? 41 42
? 43 44
? 45 46
? 47 48
? 49 50
? 51 52
? 53 54
? 55 56
? 57 58
? 59 60
? 61 62
? 63 64
? 65 66
? 67 68
? 69 70
? 71 72
? 73 74
? 75 76
? 77 ...

result:

ok Correct (5 test cases)

Test #6:

score: 0
Accepted
time: 1ms
memory: 3524kb

input:

7
147
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
801
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
27
0
0
0
0
0
0
0
0...

output:

? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 11 12
? 13 14
? 15 16
? 17 18
? 19 20
? 21 22
? 23 24
? 25 26
? 27 28
? 29 30
? 31 32
? 33 34
? 35 36
? 37 38
? 39 40
? 41 42
? 43 44
? 45 46
? 47 48
? 49 50
? 51 52
? 53 54
? 55 56
? 57 58
? 59 60
? 61 62
? 63 64
? 65 66
? 67 68
? 69 70
? 71 72
? 73 74
? 75 76
? 77 ...

result:

ok Correct (7 test cases)

Test #7:

score: 0
Accepted
time: 0ms
memory: 3592kb

input:

160
4
0
0
9
0
0
0
0
0
7
0
0
0
1
1
1
4
0
0
9
0
0
0
0
1
1
1
9
0
0
0
0
1
1
1
6
0
0
1
0
1
1
7
0
0
0
1
1
1
4
0
0
6
0
0
1
0
1
1
4
0
0
5
0
0
1
1
1
7
0
0
0
1
1
1
4
0
1
0
1
1
7
0
0
0
0
6
0
0
0
9
0
0
0
0
0
9
0
0
0
0
0
4
0
0
4
0
0
4
0
0
5
0
0
1
1
1
9
0
0
0
0
0
6
0
0
0
9
0
0
0
0
0
5
0
0
1
1
1
6
0
0
0
5
0
0
0
9
...

output:

? 1 2
? 3 4
! 1
? 1 2
? 3 4
? 5 6
? 7 8
? 9 8
! 1
? 1 2
? 3 4
? 5 6
? 7 6
? 1 7
? 2 7
! 2
? 1 2
? 3 4
! 1
? 1 2
? 3 4
? 5 6
? 7 8
? 9 8
? 1 9
? 2 9
! 2
? 1 2
? 3 4
? 5 6
? 7 8
? 9 8
? 1 9
? 2 9
! 2
? 1 2
? 3 4
? 5 6
? 1 5
? 1 6
? 2 6
! 2
? 1 2
? 3 4
? 5 6
? 7 6
? 1 7
? 2 7
! 2
? 1 2
? 3 4
! 1
? 1 2
...

result:

ok Correct (160 test cases)

Test #8:

score: 0
Accepted
time: 0ms
memory: 3572kb

input:

117
6
0
0
0
7
0
0
0
0
11
0
0
0
0
0
1
1
1
4
0
0
11
0
0
0
0
0
0
5
0
0
1
1
1
10
0
0
0
0
0
9
0
0
0
0
1
1
1
10
0
0
0
0
1
0
1
1
11
0
0
0
0
0
0
9
0
0
0
0
0
13
0
0
0
0
0
0
0
11
0
0
0
0
0
0
13
0
0
0
0
0
0
0
8
0
0
0
1
0
1
1
13
0
0
0
0
0
0
0
11
0
0
0
0
0
1
1
1
11
0
0
0
0
0
0
11
0
0
0
0
0
0
8
0
0
0
0
6
0
0
0
9
...

output:

? 1 2
? 3 4
? 5 6
! 1
? 1 2
? 3 4
? 5 6
? 7 6
! 1
? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 11 10
? 1 11
? 2 11
! 2
? 1 2
? 3 4
! 1
? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 11 10
! 1
? 1 2
? 3 4
? 5 4
? 1 5
? 2 5
! 2
? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
! 1
? 1 2
? 3 4
? 5 6
? 7 8
? 9 8
? 1 9
? 2 9
! 2
? 1 2
? 3 4
? 5 6
?...

result:

ok Correct (117 test cases)

Test #9:

score: 0
Accepted
time: 6ms
memory: 3564kb

input:

99
14
0
0
0
0
0
0
1
0
1
1
6
0
0
1
0
1
1
13
0
0
0
0
0
0
0
4
0
0
14
0
0
0
0
0
0
0
11
0
0
0
0
0
0
11
0
0
0
0
0
0
11
0
0
0
0
0
1
1
1
15
0
0
0
0
0
0
0
1
1
1
4
0
0
12
0
0
0
0
0
0
14
0
0
0
0
0
0
1
0
1
1
13
0
0
0
0
0
0
1
1
1
9
0
0
0
0
1
1
1
8
0
0
0
0
7
0
0
0
0
7
0
0
0
1
1
1
4
0
0
8
0
0
0
1
0
1
1
10
0
0
0
0
...

output:

? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 11 12
? 13 14
? 1 13
? 1 14
? 2 14
! 2
? 1 2
? 3 4
? 5 6
? 1 5
? 1 6
? 2 6
! 2
? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 11 12
? 13 12
! 1
? 1 2
? 3 4
! 1
? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 11 12
? 13 14
! 1
? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 11 10
! 1
? 1 2
? 3 4
? 5 6
? 7 8
? 9...

result:

ok Correct (99 test cases)

Test #10:

score: 0
Accepted
time: 0ms
memory: 3556kb

input:

84
18
0
0
0
0
0
0
0
0
0
14
0
0
0
0
0
0
0
17
0
0
0
0
0
0
0
0
1
1
1
13
0
0
0
0
0
0
0
11
0
0
0
0
0
1
1
1
7
0
0
0
0
14
0
0
0
0
0
0
0
12
0
0
0
0
0
0
17
0
0
0
0
0
0
0
0
1
1
1
6
0
0
0
9
0
0
0
0
0
10
0
0
0
0
1
0
1
1
5
0
0
1
1
1
4
0
0
6
0
0
0
15
0
0
0
0
0
0
0
0
4
0
0
17
0
0
0
0
0
0
0
0
1
1
1
12
0
0
0
0
0
0
1...

output:

? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 11 12
? 13 14
? 15 16
? 17 18
! 1
? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 11 12
? 13 14
! 1
? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 11 12
? 13 14
? 15 16
? 17 16
? 1 17
? 2 17
! 2
? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 11 12
? 13 12
! 1
? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 11 10
? 1 11
? 2 ...

result:

ok Correct (84 test cases)

Test #11:

score: 0
Accepted
time: 3ms
memory: 3556kb

input:

23
27
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
12
0
0
0
0
0
0
93
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
100
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
1
6
0
0
0
59
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0...

output:

? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 11 12
? 13 14
? 15 16
? 17 18
? 19 20
? 21 22
? 23 24
? 25 26
? 27 26
? 1 27
? 2 27
! 2
? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 11 12
! 1
? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 11 12
? 13 14
? 15 16
? 17 18
? 19 20
? 21 22
? 23 24
? 25 26
? 27 28
? 29 30
? 31 32
? 33 34
? 35 36
?...

result:

ok Correct (23 test cases)

Test #12:

score: 0
Accepted
time: 2ms
memory: 3608kb

input:

20
39
0
0
0
0
0
0
0
0
0
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0
0...

output:

? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 11 12
? 13 14
? 15 16
? 17 18
? 19 20
? 21 22
? 23 24
? 25 26
? 27 28
? 29 30
? 31 32
? 33 34
? 35 36
? 37 38
? 1 37
? 2 37
! 2
? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 11 12
? 13 14
? 15 16
? 17 18
? 19 20
? 21 22
? 23 24
? 25 26
? 1 25
? 1 26
? 2 26
! 2
? 1 2
? 3 4
? 5 6
?...

result:

ok Correct (20 test cases)

Test #13:

score: 0
Accepted
time: 0ms
memory: 3528kb

input:

9
69
0
0
0
0
0
0
0
0
0
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0
1
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72
0
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0
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0
0
0
0
0
0
0
...

output:

? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 11 12
? 13 14
? 15 16
? 17 18
? 19 20
? 21 22
? 23 24
? 25 26
? 27 28
? 29 30
? 31 32
? 33 34
? 35 36
? 37 38
? 39 40
? 41 42
? 43 44
? 45 46
? 47 48
? 49 50
? 51 52
? 53 54
? 55 56
? 57 58
? 59 60
? 61 62
? 63 64
? 65 66
? 67 68
? 69 68
! 1
? 1 2
? 3 4
? 5 6
? 7 8
?...

result:

ok Correct (9 test cases)

Test #14:

score: 0
Accepted
time: 3ms
memory: 3560kb

input:

6
243
0
0
0
0
0
0
0
0
0
0
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0
0
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0
0
0
...

output:

? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 11 12
? 13 14
? 15 16
? 17 18
? 19 20
? 21 22
? 23 24
? 25 26
? 27 28
? 29 30
? 31 32
? 33 34
? 35 36
? 37 38
? 39 40
? 41 42
? 43 44
? 45 46
? 47 48
? 49 50
? 51 52
? 53 54
? 55 56
? 57 58
? 59 60
? 61 62
? 63 64
? 65 66
? 67 68
? 69 70
? 71 72
? 73 74
? 75 76
? 77 ...

result:

ok Correct (6 test cases)

Test #15:

score: 0
Accepted
time: 0ms
memory: 3664kb

input:

4
613
0
0
0
0
0
0
0
0
0
0
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0
0
0
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0
0
0
0
0
0
0
...

output:

? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 11 12
? 13 14
? 15 16
? 17 18
? 19 20
? 21 22
? 23 24
? 25 26
? 27 28
? 29 30
? 31 32
? 33 34
? 35 36
? 37 38
? 39 40
? 41 42
? 43 44
? 45 46
? 47 48
? 49 50
? 51 52
? 53 54
? 55 56
? 57 58
? 59 60
? 61 62
? 63 64
? 65 66
? 67 68
? 69 70
? 71 72
? 73 74
? 75 76
? 77 ...

result:

ok Correct (4 test cases)

Test #16:

score: 0
Accepted
time: 3ms
memory: 3528kb

input:

146
6
1
1
0
9
1
1
0
4
1
1
1
9
1
1
1
7
1
1
0
6
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0
4
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1
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1
9
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1
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4
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1
1
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1
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1
1
1
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1
1
0
8
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1
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5
1
1
0
9
1
1
0
7
1
1
1
8
1
1
0
6
1
1
1
...

output:

? 1 2
? 3 1
? 4 1
! 1
? 1 2
? 3 1
? 4 1
! 1
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 1
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 1
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 1
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? ...

result:

ok Correct (146 test cases)

Test #17:

score: 0
Accepted
time: 0ms
memory: 3628kb

input:

117
4
1
1
1
4
1
1
1
12
1
1
1
7
1
1
1
12
1
1
1
9
1
1
1
10
1
1
1
13
1
1
1
11
1
1
1
9
1
1
0
12
1
1
1
11
1
1
0
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0
10
1
1
1
5
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1
1
5
1
1
1
5
1
1
1
4
1
1
0
4
1
1
1
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1
1
0
4
1
1
1
8
1
1
1
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1
1
0
6
1
1
1
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1
1
0
13
1
1
1
10
1
1
1
12
1
1
1
9
1
1
1
4
1
1
1
9
1
1
0
7
1
1
1
6
1
1
1
11
1
1
1
8
1
1
0
13
1...

output:

? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 1
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 1
? 1 2
? 3 1
? 4 1
! 1
? 1 2
? 3 1
? ...

result:

ok Correct (117 test cases)

Test #18:

score: 0
Accepted
time: 4ms
memory: 3612kb

input:

105
7
1
1
0
11
1
1
1
13
1
1
0
12
1
1
1
6
1
1
1
10
1
1
1
7
1
1
0
4
1
1
0
13
1
1
1
13
1
1
1
14
1
1
0
5
1
1
1
6
1
1
1
4
1
1
1
6
1
1
1
6
1
1
0
10
1
1
1
15
1
1
1
6
1
1
0
9
1
1
0
13
1
1
0
15
1
1
1
5
1
1
1
11
1
1
0
6
1
1
0
7
1
1
1
10
1
1
0
15
1
1
1
12
1
1
0
7
1
1
1
12
1
1
0
12
1
1
1
6
1
1
1
4
1
1
1
6
1
1
1...

output:

? 1 2
? 3 1
? 4 1
! 1
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 1
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 1
? 1 2
? 3 1
? 4 1
! 1
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 1
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? ...

result:

ok Correct (105 test cases)

Test #19:

score: 0
Accepted
time: 3ms
memory: 3596kb

input:

86
12
1
1
1
17
1
1
1
7
1
1
1
6
1
1
0
13
1
1
1
5
1
1
1
16
1
1
0
6
1
1
1
10
1
1
0
18
1
1
1
4
1
1
1
19
1
1
1
14
1
1
1
13
1
1
1
4
1
1
1
5
1
1
0
8
1
1
1
13
1
1
0
15
1
1
1
7
1
1
0
20
1
1
0
20
1
1
0
5
1
1
1
6
1
1
0
5
1
1
0
15
1
1
0
12
1
1
1
9
1
1
1
17
1
1
0
19
1
1
1
20
1
1
1
11
1
1
0
20
1
1
0
14
1
1
1
18
1...

output:

? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 1
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 1
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 1
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? ...

result:

ok Correct (86 test cases)

Test #20:

score: 0
Accepted
time: 1ms
memory: 3508kb

input:

20
53
1
1
0
61
1
1
1
96
1
1
1
60
1
1
1
25
1
1
1
18
1
1
1
24
1
1
1
73
1
1
1
76
1
1
0
62
1
1
0
33
1
1
1
89
1
1
0
55
1
1
0
71
1
1
0
45
1
1
1
44
1
1
1
52
1
1
1
46
1
1
0
7
1
1
0
7
1
1
1

output:

? 1 2
? 3 1
? 4 1
! 1
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 1
? 1 2
? 3 1
? 4 1
! 1
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 1
? 1 2
? 3 1
? 4 1
! 1
? 1 2
? 3 1
? ...

result:

ok Correct (20 test cases)

Test #21:

score: 0
Accepted
time: 0ms
memory: 3588kb

input:

9
273
1
1
0
54
1
1
0
234
1
1
1
256
1
1
1
70
1
1
1
23
1
1
0
5
1
1
0
81
1
1
1
4
1
1
1

output:

? 1 2
? 3 1
? 4 1
! 1
? 1 2
? 3 1
? 4 1
! 1
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 1
? 1 2
? 3 1
? 4 1
! 1
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2

result:

ok Correct (9 test cases)

Test #22:

score: 0
Accepted
time: 1ms
memory: 3616kb

input:

12
92
1
1
1
50
1
1
1
395
1
1
0
152
1
1
1
31
1
1
1
183
1
1
1
13
1
1
1
32
1
1
1
21
1
1
0
12
1
1
0
14
1
1
0
4
1
1
1

output:

? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 1
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 1
? 1 2
? 3 1
? 4 1
! 1
? 1 2
? 3 1
? 4 1
! 1
? 1 2
? 3 1
? 4 1
! 2

result:

ok Correct (12 test cases)

Test #23:

score: 0
Accepted
time: 1ms
memory: 3572kb

input:

5
957
1
1
0
14
1
1
0
7
1
1
1
10
1
1
1
11
1
1
0

output:

? 1 2
? 3 1
? 4 1
! 1
? 1 2
? 3 1
? 4 1
! 1
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 1

result:

ok Correct (5 test cases)

Test #24:

score: 0
Accepted
time: 3ms
memory: 3572kb

input:

81
11
1
1
0
20
1
1
1
5
1
0
1
1
16
0
0
0
0
0
0
1
0
0
19
0
1
1
1
17
1
0
1
1
12
1
1
1
4
1
1
1
13
0
0
1
0
1
0
20
0
0
1
0
1
1
10
1
0
1
1
20
1
1
0
8
1
1
1
5
0
0
0
11
1
1
0
17
0
1
1
1
9
1
1
0
13
0
1
1
1
19
0
1
0
1
1
13
0
0
1
0
0
17
0
0
0
0
0
0
0
0
1
1
1
18
1
1
1
12
1
0
0
19
1
1
1
18
0
0
0
0
0
0
0
0
0
8
1
1...

output:

? 1 2
? 3 1
? 4 1
! 1
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 3 2
? 4 2
! 2
? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 11 12
? 13 14
? 1 13
? 1 14
! 1
? 1 2
? 3 4
? 1 3
? 2 3
! 2
? 1 2
? 3 1
? 3 2
? 4 2
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 4
? 5 6
? 1 5
? 1 6
? 2 6
! 1
? 1 2
? 3 4
? 5 6
? 1 5...

result:

ok Correct (81 test cases)

Test #25:

score: 0
Accepted
time: 1ms
memory: 3584kb

input:

24
43
1
1
1
87
1
1
1
19
0
1
1
1
23
0
0
0
1
0
0
13
0
1
1
0
75
1
1
0
13
0
1
0
1
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1
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1
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0
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1
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1
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1
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1
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output:

? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 4
? 1 3
? 2 3
! 2
? 1 2
? 3 4
? 5 6
? 7 8
? 1 7
? 1 8
! 1
? 1 2
? 3 4
? 1 3
? 2 3
! 1
? 1 2
? 3 1
? 4 1
! 1
? 1 2
? 3 4
? 1 3
? 1 4
? 2 4
! 2
? 1 2
? 3 1
? 3 2
? 4 2
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 3 2
? 4 2
! 2
? 1 2
? 3 1
? 4 1
! 1
? 1 ...

result:

ok Correct (24 test cases)

Test #26:

score: 0
Accepted
time: 1ms
memory: 3576kb

input:

9
35
0
0
0
0
1
0
0
122
1
1
1
167
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output:

? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 1 9
? 1 10
! 1
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 11 12
? 13 14
? 15 16
? 17 18
? 19 20
? 21 22
? 23 24
? 25 26
? 27 28
? 29 30
? 31 32
? 33 34
? 35 36
? 37 38
? 39 40
? 41 42
? 43 44
? 45 46
? 47 48
? 49 50
? 51 52
? 1 51
? 1 52
! 1
? 1 2
? 3 4
?...

result:

ok Correct (9 test cases)

Test #27:

score: 0
Accepted
time: 1ms
memory: 3540kb

input:

8
481
0
0
0
0
1
0
1
1
165
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148
1
1
1
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0
4
0
1
1
1

output:

? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 1 9
? 1 10
? 2 10
! 2
? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 1 9
? 1 10
? 2 10
! 2
? 1 2
? 3 4
? 5 6
? 1 5
? 1 6
! 1
? 1 2
? 3 4
? 1 3
? 2 3
! 1
? 1 2
? 3 1
? 3 2
! 1
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 1
? 1 2
? 3 4
? 1 3
? 2 3
! 2

result:

ok Correct (8 test cases)

Test #28:

score: 0
Accepted
time: 1ms
memory: 3684kb

input:

10
510
0
0
0
0
0
0
0
0
0
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222
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0
19
1
1
1
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0
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1
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1
1
0

output:

? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 11 12
? 13 14
? 15 16
? 17 18
? 19 20
? 21 22
? 23 24
? 25 26
? 1 25
? 1 26
! 1
? 1 2
? 3 1
? 4 1
! 1
? 1 2
? 3 1
? 4 1
! 1
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 4
? 1 3
? 1 4
! 1
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 4
? 1 3
? 1 4
! 1
? 1 2
? 3 1
? 4 1
! 2...

result:

ok Correct (10 test cases)

Test #29:

score: 0
Accepted
time: 0ms
memory: 3564kb

input:

1
1000
0
0
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output:

? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 11 12
? 13 14
? 15 16
? 17 18
? 19 20
? 21 22
? 23 24
? 25 26
? 27 28
? 29 30
? 31 32
? 33 34
? 35 36
? 37 38
? 39 40
? 41 42
? 43 44
? 45 46
? 47 48
? 49 50
? 51 52
? 53 54
? 55 56
? 57 58
? 59 60
? 61 62
? 63 64
? 65 66
? 67 68
? 69 70
? 71 72
? 73 74
? 75 76
? 77 ...

result:

ok Correct (1 test case)

Test #30:

score: 0
Accepted
time: 0ms
memory: 3620kb

input:

2
500
0
0
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...

output:

? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 11 12
? 13 14
? 15 16
? 17 18
? 19 20
? 21 22
? 23 24
? 25 26
? 27 28
? 29 30
? 31 32
? 33 34
? 35 36
? 37 38
? 39 40
? 41 42
? 43 44
? 45 46
? 47 48
? 49 50
? 51 52
? 53 54
? 55 56
? 57 58
? 59 60
? 61 62
? 63 64
? 65 66
? 67 68
? 69 70
? 71 72
? 73 74
? 75 76
? 77 ...

result:

ok Correct (2 test cases)

Test #31:

score: 0
Accepted
time: 0ms
memory: 3556kb

input:

4
250
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...

output:

? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 11 12
? 13 14
? 15 16
? 17 18
? 19 20
? 21 22
? 23 24
? 25 26
? 27 28
? 29 30
? 31 32
? 33 34
? 35 36
? 37 38
? 39 40
? 41 42
? 43 44
? 45 46
? 47 48
? 49 50
? 51 52
? 53 54
? 55 56
? 57 58
? 59 60
? 61 62
? 63 64
? 65 66
? 67 68
? 69 70
? 71 72
? 73 74
? 75 76
? 1 7...

result:

ok Correct (4 test cases)

Test #32:

score: 0
Accepted
time: 1ms
memory: 3540kb

input:

1
1000
0
0
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output:

? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 11 12
? 13 14
? 15 16
? 17 18
? 19 20
? 21 22
? 23 24
? 25 26
? 27 28
? 29 30
? 31 32
? 33 34
? 35 36
? 37 38
? 39 40
? 41 42
? 43 44
? 45 46
? 47 48
? 49 50
? 51 52
? 53 54
? 55 56
? 57 58
? 59 60
? 61 62
? 63 64
? 65 66
? 67 68
? 69 70
? 71 72
? 73 74
? 75 76
? 77 ...

result:

ok Correct (1 test case)

Test #33:

score: 0
Accepted
time: 1ms
memory: 3684kb

input:

1
1000
1
1
1

output:

? 1 2
? 3 1
? 4 1
! 2

result:

ok Correct (1 test case)

Test #34:

score: 0
Accepted
time: 1ms
memory: 3560kb

input:

1
1000
0
0
0
0
1
0
1
1

output:

? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 1 9
? 1 10
? 2 10
! 2

result:

ok Correct (1 test case)

Test #35:

score: 0
Accepted
time: 0ms
memory: 3596kb

input:

2
500
0
0
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...

output:

? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 11 12
? 13 14
? 15 16
? 17 18
? 19 20
? 21 22
? 23 24
? 25 26
? 27 28
? 29 30
? 31 32
? 33 34
? 35 36
? 37 38
? 39 40
? 41 42
? 43 44
? 45 46
? 47 48
? 49 50
? 51 52
? 53 54
? 55 56
? 57 58
? 59 60
? 61 62
? 63 64
? 65 66
? 67 68
? 69 70
? 71 72
? 73 74
? 75 76
? 77 ...

result:

ok Correct (2 test cases)

Test #36:

score: 0
Accepted
time: 1ms
memory: 3624kb

input:

2
500
1
1
1
500
1
1
0

output:

? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 1

result:

ok Correct (2 test cases)

Test #37:

score: 0
Accepted
time: 1ms
memory: 3540kb

input:

2
500
1
1
1
500
0
1
0
1
1

output:

? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 4
? 1 3
? 1 4
? 2 4
! 2

result:

ok Correct (2 test cases)

Test #38:

score: 0
Accepted
time: 0ms
memory: 3624kb

input:

4
250
0
0
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...

output:

? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 11 12
? 13 14
? 15 16
? 17 18
? 19 20
? 21 22
? 23 24
? 25 26
? 27 28
? 29 30
? 31 32
? 33 34
? 35 36
? 37 38
? 39 40
? 41 42
? 43 44
? 45 46
? 47 48
? 49 50
? 51 52
? 53 54
? 55 56
? 57 58
? 59 60
? 61 62
? 63 64
? 65 66
? 67 68
? 69 70
? 71 72
? 73 74
? 75 76
? 77 ...

result:

ok Correct (4 test cases)

Test #39:

score: 0
Accepted
time: 0ms
memory: 3540kb

input:

4
250
1
1
0
250
1
1
0
250
1
1
1
250
1
1
0

output:

? 1 2
? 3 1
? 4 1
! 1
? 1 2
? 3 1
? 4 1
! 1
? 1 2
? 3 1
? 4 1
! 2
? 1 2
? 3 1
? 4 1
! 1

result:

ok Correct (4 test cases)

Test #40:

score: 0
Accepted
time: 1ms
memory: 3512kb

input:

4
250
0
0
0
0
1
0
1
1
250
0
0
0
0
1
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1
1
250
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1
1
0
250
0
0
1
0
1
1

output:

? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 1 9
? 1 10
? 2 10
! 2
? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 1 9
? 1 10
? 2 10
! 2
? 1 2
? 3 4
? 5 6
? 1 5
? 2 5
! 1
? 1 2
? 3 4
? 5 6
? 1 5
? 1 6
? 2 6
! 2

result:

ok Correct (4 test cases)

Test #41:

score: 0
Accepted
time: 0ms
memory: 3628kb

input:

1
1000
0
0
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0
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0...

output:

? 1 2
? 3 4
? 5 6
? 7 8
? 9 10
? 11 12
? 13 14
? 15 16
? 17 18
? 19 20
? 21 22
? 23 24
? 25 26
? 27 28
? 29 30
? 31 32
? 33 34
? 35 36
? 37 38
? 39 40
? 41 42
? 43 44
? 45 46
? 47 48
? 49 50
? 51 52
? 53 54
? 55 56
? 57 58
? 59 60
? 61 62
? 63 64
? 65 66
? 67 68
? 69 70
? 71 72
? 73 74
? 75 76
? 77 ...

result:

ok Correct (1 test case)

Extra Test:

score: 0
Extra Test Passed