QOJ.ac

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
#876009#8615. Equal Stringssuperguymj#AC ✓48ms5376kbC++201.1kb2025-01-30 15:37:102025-01-30 15:37:12

Judging History

This is the latest submission verdict.

  • [2025-01-30 15:37:12]
  • Judged
  • Verdict: AC
  • Time: 48ms
  • Memory: 5376kb
  • [2025-01-30 15:37:10]
  • Submitted

answer

#include <bits/stdc++.h>
using namespace std;

int main() {
    ios::sync_with_stdio(false);
    int n;
    cin >> n;
    mt19937 rd(233);
    vector<int> id(n);
    iota(id.begin(), id.end(), 1);
    const int B = min(23, n);
    vector hs(n, vector(B, 0));
    map<vector<int>, vector<int>> lst;
    auto query = [&](int x, int y) {
        if (x > y) {
            swap(x, y);
        }
        static map<pair<int, int>, int> qr;
        if (qr.count({x, y})) {
            return qr[{x, y}];
        }
        cout << x << ' ' << y << endl;
        cin >> qr[{x, y}];
        return qr[{x, y}];
    };
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < B; j++) {
            if (i == j) {
                hs[i][j] = 0;
            } else {
                hs[i][j] = query(id[i], id[j]);
                if (hs[i][j] == 0) {
                    return 0;
                }
            }
        }
        for (auto j : lst[hs[i]]) {
            if (query(id[i], id[j]) == 0) {
                return 0;
            }
        }
        lst[hs[i]].push_back(i);
    }
    return 0;
}

詳細信息

Test #1:

score: 100
Accepted
time: 0ms
memory: 3584kb

input:

4
21
24
21
23
0

output:

1 2
1 3
1 4
2 3
2 4

result:

ok Found equal strings: 2, 4

Test #2:

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

input:

4
28
0

output:

1 2
1 3

result:

ok Found equal strings: 1, 3

Test #3:

score: 0
Accepted
time: 0ms
memory: 3712kb

input:

10
23
24
24
21
25
29
25
24
28
29
19
26
26
18
30
29
21
26
25
29
27
27
0

output:

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

result:

ok Found equal strings: 3, 9

Test #4:

score: 0
Accepted
time: 6ms
memory: 3712kb

input:

100
23
33
22
31
21
20
29
18
21
34
31
24
20
25
26
19
29
31
28
20
25
29
26
25
26
24
23
20
23
24
23
26
23
25
26
25
22
26
28
25
33
28
28
25
20
34
25
22
31
36
19
24
25
27
26
21
28
22
22
25
25
30
28
33
21
26
27
22
23
24
31
22
20
23
26
31
31
27
30
28
23
25
32
25
20
29
30
23
18
25
29
30
19
20
24
22
23
27
26...

output:

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

result:

ok Found equal strings: 62, 100

Test #5:

score: 0
Accepted
time: 10ms
memory: 4096kb

input:

500
27
26
25
25
26
30
21
26
29
24
22
25
26
25
26
22
25
19
23
23
26
23
27
22
22
23
27
26
27
30
31
23
26
23
22
27
29
28
20
22
24
27
28
23
29
22
26
23
28
23
24
28
27
26
27
28
22
21
27
29
23
26
27
20
27
25
26
23
24
17
23
20
27
28
21
31
20
30
26
22
27
22
29
23
28
23
30
23
23
26
21
26
27
31
26
26
22
26
23...

output:

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

result:

ok Found equal strings: 100, 334

Test #6:

score: 0
Accepted
time: 21ms
memory: 4736kb

input:

750
25
27
27
23
28
23
18
30
25
23
28
27
23
24
26
24
24
22
23
27
22
23
30
26
24
27
20
31
25
18
24
31
26
24
23
25
25
23
27
22
24
23
24
28
20
23
24
23
33
20
24
25
24
26
19
21
19
25
21
30
26
25
28
28
25
28
21
29
30
24
19
28
24
21
25
25
21
23
24
24
25
26
23
30
25
31
18
20
27
24
30
25
25
25
21
21
24
24
25...

output:

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

result:

ok Found equal strings: 130, 698

Test #7:

score: 0
Accepted
time: 6ms
memory: 4096kb

input:

999
25
26
22
24
27
23
26
33
23
26
26
31
24
27
24
27
25
26
26
24
32
23
17
13
23
28
26
29
20
26
23
29
28
25
22
25
30
22
29
23
29
23
24
22
24
29
25
30
19
29
28
28
21
24
29
24
25
27
24
20
30
22
29
16
27
25
28
29
29
28
22
25
26
25
26
25
25
28
26
28
24
19
23
23
24
29
29
22
20
29
24
13
26
25
23
30
30
24
30...

output:

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

result:

ok Found equal strings: 205, 281

Test #8:

score: 0
Accepted
time: 15ms
memory: 4224kb

input:

1000
21
18
24
18
28
19
30
28
26
27
30
21
31
18
29
23
26
24
29
28
31
24
25
21
25
23
24
25
29
29
32
27
28
28
27
26
26
29
25
28
27
20
23
22
28
24
21
26
28
28
25
28
25
27
24
23
27
20
22
27
34
27
24
30
24
25
22
28
30
29
30
27
31
22
23
29
32
24
35
24
27
28
26
23
32
24
24
29
24
17
25
20
29
25
30
24
19
28
2...

output:

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

result:

ok Found equal strings: 211, 327

Test #9:

score: 0
Accepted
time: 22ms
memory: 4352kb

input:

1000
26
31
25
28
25
28
27
23
19
28
23
17
31
26
23
23
17
20
27
25
25
20
31
19
26
23
24
21
23
25
26
25
23
27
24
23
27
31
28
27
25
29
28
30
33
24
23
26
26
26
19
28
26
26
19
32
32
20
27
26
26
16
31
25
24
21
22
24
22
25
28
24
26
31
24
26
20
31
20
28
22
27
27
26
23
23
27
28
23
25
21
22
25
17
27
22
33
25
2...

output:

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

result:

ok Found equal strings: 220, 448

Test #10:

score: 0
Accepted
time: 42ms
memory: 5248kb

input:

1000
25
23
22
30
24
33
26
28
27
24
27
23
35
24
24
29
23
29
28
22
30
25
26
29
23
27
28
23
21
26
19
28
30
24
25
23
26
24
24
19
27
27
20
21
27
21
20
23
29
22
19
26
20
28
27
27
24
26
20
21
19
25
24
30
24
27
22
24
33
26
27
15
29
20
24
21
25
31
24
28
22
23
24
25
26
22
19
22
25
27
19
24
22
29
25
21
24
28
2...

output:

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

result:

ok Found equal strings: 279, 970

Test #11:

score: 0
Accepted
time: 29ms
memory: 5120kb

input:

1000
24
28
22
30
21
22
27
26
25
24
21
27
27
23
26
29
26
22
32
26
24
31
24
24
26
23
24
23
20
25
26
29
29
21
29
26
23
26
22
26
22
28
25
28
22
25
28
17
26
23
28
33
25
27
21
24
37
30
30
26
20
26
25
30
23
30
29
22
29
24
23
27
19
29
22
19
26
28
26
22
30
23
23
18
21
30
19
22
27
23
25
25
28
27
24
24
20
22
2...

output:

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

result:

ok Found equal strings: 619, 843

Test #12:

score: 0
Accepted
time: 26ms
memory: 4864kb

input:

1000
25
25
25
25
33
24
26
27
27
25
23
31
24
22
24
23
22
25
26
24
15
31
26
26
28
24
25
27
28
24
30
20
26
27
33
23
22
23
22
25
19
24
28
34
22
26
27
25
20
26
28
26
32
25
27
27
24
27
22
25
25
22
26
30
26
23
21
26
24
30
26
22
19
21
25
34
29
26
25
29
28
12
18
27
25
24
26
26
30
22
21
27
33
24
23
24
21
27
2...

output:

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

result:

ok Found equal strings: 678, 717

Test #13:

score: 0
Accepted
time: 25ms
memory: 4864kb

input:

1000
27
25
26
23
18
23
23
29
24
21
24
31
30
27
29
25
33
23
21
29
25
24
26
23
28
25
30
22
26
17
28
25
22
29
26
14
26
30
24
24
26
24
27
25
28
27
28
26
30
27
26
27
22
25
22
22
30
26
24
24
30
26
25
21
22
21
29
25
28
27
26
25
30
25
23
25
25
23
23
25
21
30
25
24
20
28
25
30
23
28
31
22
26
30
24
22
20
16
1...

output:

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

result:

ok Found equal strings: 239, 737

Test #14:

score: 0
Accepted
time: 35ms
memory: 5248kb

input:

1000
24
24
31
23
23
28
29
26
26
23
26
22
28
33
26
23
25
18
29
20
19
25
28
23
23
25
28
21
22
18
25
24
22
30
25
24
27
31
22
23
24
21
33
29
23
25
24
29
20
30
19
24
22
32
31
24
21
23
22
29
22
27
23
28
30
29
20
23
17
30
21
25
25
26
21
32
28
33
24
27
24
24
22
29
26
25
25
28
23
23
29
30
23
20
26
29
28
25
1...

output:

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

result:

ok Found equal strings: 112, 796

Test #15:

score: 0
Accepted
time: 35ms
memory: 5120kb

input:

1000
24
31
28
25
27
26
25
23
28
23
30
29
26
24
28
28
24
23
20
27
28
26
23
30
27
21
26
23
19
20
25
20
23
28
16
20
22
26
21
24
31
26
26
29
22
26
25
24
26
23
28
21
26
23
23
21
23
25
30
21
30
19
23
25
25
24
23
25
24
31
28
27
24
28
20
26
24
23
24
21
26
20
24
25
28
24
27
32
29
22
25
25
25
25
29
32
21
18
1...

output:

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

result:

ok Found equal strings: 634, 855

Test #16:

score: 0
Accepted
time: 20ms
memory: 4608kb

input:

1000
25
25
26
24
27
22
25
27
24
24
25
28
20
30
24
25
30
27
21
29
24
26
22
19
17
26
23
16
24
27
21
22
25
25
29
23
34
29
24
26
28
25
25
23
31
22
23
24
30
23
27
12
23
23
29
31
24
27
26
26
24
21
25
28
25
30
23
29
32
24
21
26
22
20
26
23
26
25
27
23
30
24
25
24
25
19
26
24
27
26
30
26
22
29
24
31
21
23
2...

output:

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

result:

ok Found equal strings: 196, 508

Test #17:

score: 0
Accepted
time: 5ms
memory: 4096kb

input:

1000
26
23
24
19
31
25
29
24
29
26
30
23
23
28
27
24
30
21
27
27
25
18
19
24
25
25
25
23
22
23
32
22
25
25
28
19
20
20
27
25
33
23
28
31
24
30
28
22
23
24
25
19
28
22
23
22
25
29
22
24
28
24
25
25
25
23
31
22
25
30
26
27
25
28
27
26
22
31
23
27
27
26
26
26
22
21
32
21
27
24
28
27
24
21
25
28
22
26
2...

output:

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

result:

ok Found equal strings: 30, 255

Test #18:

score: 0
Accepted
time: 38ms
memory: 5248kb

input:

1000
20
29
27
30
22
26
28
30
25
22
24
24
22
24
25
30
24
25
23
22
22
24
25
25
28
22
24
26
28
29
26
24
24
24
22
31
20
24
29
31
22
24
30
22
21
29
23
27
25
28
29
27
29
25
21
24
21
29
30
26
27
17
27
21
23
23
25
21
20
25
27
25
27
29
16
23
27
24
22
23
23
25
26
28
30
26
23
26
22
30
30
26
19
24
22
23
23
30
2...

output:

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

result:

ok Found equal strings: 284, 957

Test #19:

score: 0
Accepted
time: 14ms
memory: 4480kb

input:

1000
26
27
24
21
28
26
25
26
28
34
24
22
25
27
29
30
23
21
27
23
26
28
25
24
19
32
24
25
26
28
26
28
32
17
25
19
24
27
21
21
25
26
26
23
28
31
31
24
21
29
19
25
27
30
30
28
19
30
22
24
22
23
23
23
26
24
27
24
26
22
20
24
23
27
25
28
21
29
27
27
24
22
29
21
20
29
23
29
29
19
24
28
24
25
32
24
26
20
2...

output:

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

result:

ok Found equal strings: 343, 478

Test #20:

score: 0
Accepted
time: 17ms
memory: 4352kb

input:

1000
19
26
17
23
28
33
29
28
26
30
29
30
33
24
19
28
30
25
28
24
25
27
23
20
26
25
22
26
27
25
23
24
21
24
23
28
25
25
28
21
27
26
32
25
29
26
23
25
26
22
30
21
24
31
26
27
26
24
23
28
28
25
23
24
29
28
28
31
19
23
24
21
24
17
26
29
21
30
23
27
20
28
23
28
32
23
27
17
22
31
20
23
22
29
31
28
21
25
2...

output:

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

result:

ok Found equal strings: 352, 402

Test #21:

score: 0
Accepted
time: 36ms
memory: 5120kb

input:

1000
23
28
26
24
24
29
21
26
27
29
27
29
28
23
28
17
25
25
31
24
22
26
15
23
25
21
26
22
33
28
26
20
24
25
28
31
22
22
26
22
21
21
23
22
32
22
29
21
30
29
25
15
21
24
23
26
27
27
25
21
28
24
20
26
26
29
27
24
23
25
23
21
28
27
20
19
21
23
25
28
30
20
20
25
23
16
21
29
27
23
24
23
26
25
25
21
23
28
2...

output:

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

result:

ok Found equal strings: 462, 874

Test #22:

score: 0
Accepted
time: 32ms
memory: 4864kb

input:

1000
27
20
28
27
32
26
27
26
26
32
29
25
27
27
19
23
27
22
25
26
27
24
29
23
20
21
23
26
37
25
25
30
26
24
18
26
28
26
15
32
27
30
21
28
35
30
24
31
28
24
20
21
25
27
23
23
17
23
28
29
26
25
24
23
24
22
29
24
22
30
21
27
31
17
25
31
23
24
25
26
19
16
25
23
20
31
29
23
20
26
22
28
26
28
32
25
28
29
2...

output:

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

result:

ok Found equal strings: 521, 747

Test #23:

score: 0
Accepted
time: 44ms
memory: 5120kb

input:

1000
32
30
27
29
27
20
25
29
28
22
20
29
26
29
30
22
28
23
26
19
28
22
24
27
25
19
24
23
17
26
20
24
25
32
23
22
24
22
23
22
27
22
26
31
31
27
26
27
27
30
26
28
21
28
27
18
28
24
27
24
23
28
30
16
26
31
26
28
17
25
23
20
23
24
27
31
25
28
21
30
19
25
24
27
26
22
25
31
23
20
15
26
27
29
19
28
25
30
2...

output:

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

result:

ok Found equal strings: 621, 861

Test #24:

score: 0
Accepted
time: 33ms
memory: 5376kb

input:

1000
21
25
24
21
21
25
20
21
27
29
29
30
24
23
28
27
29
20
29
32
22
24
18
21
22
24
28
21
20
26
26
28
21
17
22
29
24
24
27
24
27
29
31
27
22
28
18
25
18
26
28
20
19
25
30
21
26
24
27
28
19
27
29
21
29
31
24
29
23
29
27
24
22
17
24
27
29
22
25
24
18
26
28
26
23
20
24
26
24
27
29
28
23
28
24
27
24
33
2...

output:

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

result:

ok Found equal strings: 143, 920

Test #25:

score: 0
Accepted
time: 41ms
memory: 5376kb

input:

1000
24
26
31
29
29
26
25
21
20
25
24
22
24
27
26
28
35
26
26
28
22
27
18
27
27
25
20
23
29
32
23
26
20
16
25
24
30
21
26
28
20
20
23
27
25
27
28
25
25
28
25
24
28
18
25
26
32
23
20
20
26
24
21
20
22
25
24
32
25
24
21
31
27
26
23
19
22
23
23
23
31
26
18
23
28
24
21
22
29
29
27
22
25
23
24
23
27
19
2...

output:

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

result:

ok Found equal strings: 17, 979

Test #26:

score: 0
Accepted
time: 20ms
memory: 4608kb

input:

1000
23
21
26
24
25
26
24
29
25
21
31
27
26
32
28
20
27
25
32
20
31
24
22
25
27
22
23
25
32
24
28
30
24
21
19
25
21
20
28
29
25
32
25
31
29
24
19
29
26
26
26
24
28
23
23
31
25
24
28
29
25
28
21
24
23
26
28
27
21
25
21
23
28
30
26
22
29
27
24
24
25
30
31
22
18
27
25
25
25
29
22
28
30
30
25
19
26
22
2...

output:

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

result:

ok Found equal strings: 39, 538

Test #27:

score: 0
Accepted
time: 23ms
memory: 4480kb

input:

1000
26
21
33
27
24
24
25
24
21
27
23
23
23
28
23
25
26
28
27
18
27
27
29
27
25
20
26
25
26
23
27
31
25
25
24
23
27
24
24
31
26
25
27
30
32
21
31
30
19
26
22
24
28
24
27
30
22
27
27
22
29
26
22
20
27
25
24
27
26
28
22
26
22
31
26
20
29
23
22
21
22
30
27
27
24
25
28
30
24
26
24
29
20
22
21
23
30
23
2...

output:

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

result:

ok Found equal strings: 98, 412

Test #28:

score: 0
Accepted
time: 37ms
memory: 5248kb

input:

1000
26
24
24
20
28
25
25
24
29
26
24
25
21
23
23
28
24
26
22
30
25
18
18
24
26
20
25
27
20
29
26
30
23
23
31
25
24
22
28
24
24
27
26
30
22
24
29
25
20
17
24
28
25
23
29
25
22
22
26
22
22
27
26
20
18
27
23
26
29
38
24
17
23
19
27
30
26
20
28
22
21
28
24
31
27
28
23
30
22
21
29
21
27
26
30
20
28
32
2...

output:

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

result:

ok Found equal strings: 598, 970

Test #29:

score: 0
Accepted
time: 43ms
memory: 5248kb

input:

1000
22
23
29
28
18
28
23
26
21
24
25
28
25
30
23
20
29
20
33
24
26
27
29
23
22
26
30
21
28
25
24
23
24
25
26
23
24
29
26
23
24
24
29
26
17
17
21
22
27
24
31
24
23
26
25
26
23
22
25
22
27
27
20
27
29
17
28
15
18
27
24
29
26
25
22
27
22
27
20
27
27
26
22
26
25
30
29
24
23
20
25
28
23
24
23
28
23
24
3...

output:

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

result:

ok Found equal strings: 657, 844

Test #30:

score: 0
Accepted
time: 29ms
memory: 4992kb

input:

1000
26
19
25
23
23
23
28
25
28
29
26
26
26
31
22
24
23
23
24
24
21
25
27
27
23
27
23
24
21
24
21
24
28
26
25
22
24
23
21
22
26
23
23
28
26
22
28
23
28
27
28
19
23
25
30
23
23
26
20
23
25
26
24
16
22
28
27
30
21
22
25
25
31
22
25
27
28
32
21
25
26
18
20
24
25
26
19
28
23
21
31
26
25
25
22
26
25
31
2...

output:

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

result:

ok Found equal strings: 716, 718

Test #31:

score: 0
Accepted
time: 6ms
memory: 4096kb

input:

1000
18
23
17
22
22
31
22
20
19
29
28
23
19
28
23
19
23
20
25
29
27
30
25
23
20
24
23
28
30
23
33
26
29
25
26
25
25
23
24
27
23
25
28
22
31
21
28
31
19
26
32
33
20
26
33
24
24
22
25
26
22
24
27
31
27
24
27
27
20
24
27
28
22
29
28
24
26
19
24
20
26
25
24
25
24
18
23
25
26
29
17
24
25
21
23
24
23
29
2...

output:

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

result:

ok Found equal strings: 57, 240

Test #32:

score: 0
Accepted
time: 6ms
memory: 3968kb

input:

1000
21
16
29
23
24
25
28
20
16
27
28
23
27
20
26
17
20
33
19
32
27
31
23
22
24
25
20
27
21
23
22
23
22
16
27
29
24
27
26
22
29
22
20
27
31
24
31
28
22
22
27
28
23
27
22
24
17
24
31
19
26
27
29
28
23
20
27
27
37
28
27
24
24
21
25
22
27
26
30
27
22
18
27
24
25
25
25
26
31
30
22
25
27
30
25
16
24
27
2...

output:

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

result:

ok Found equal strings: 113, 116

Test #33:

score: 0
Accepted
time: 16ms
memory: 4864kb

input:

1000
30
30
28
21
27
28
30
27
22
27
21
28
25
21
28
25
21
25
20
29
28
23
26
22
27
23
26
22
31
30
29
23
22
21
25
26
21
29
27
32
19
26
23
26
27
19
26
24
17
24
29
23
24
23
27
26
31
29
25
32
21
22
33
27
29
26
26
21
28
25
19
30
27
23
26
19
29
17
28
19
28
25
26
21
31
22
21
26
26
27
22
26
31
30
26
18
27
32
1...

output:

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

result:

ok Found equal strings: 175, 635

Test #34:

score: 0
Accepted
time: 23ms
memory: 4608kb

input:

1000
25
23
20
27
25
25
32
31
26
16
30
29
22
35
21
24
24
27
32
27
22
32
24
25
24
32
28
27
26
21
27
21
16
23
24
24
25
33
26
21
20
27
25
21
26
22
28
25
22
27
19
21
26
27
30
26
27
23
26
21
28
25
27
27
27
23
26
29
24
22
26
31
26
33
23
24
22
31
24
31
32
22
26
24
29
22
29
23
19
28
27
26
24
17
21
28
23
20
2...

output:

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

result:

ok Found equal strings: 235, 509

Test #35:

score: 0
Accepted
time: 10ms
memory: 4096kb

input:

1000
23
25
25
23
26
23
26
19
24
28
26
21
25
27
22
22
31
23
20
27
27
26
30
22
22
21
20
29
24
23
23
27
26
28
28
21
23
28
28
29
24
20
27
24
22
25
30
21
22
27
25
25
26
26
14
25
29
22
24
27
18
28
23
26
27
30
21
20
21
27
21
20
28
24
19
27
18
30
29
22
24
27
19
26
31
26
27
25
27
22
22
22
27
17
22
30
21
26
2...

output:

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

result:

ok Found equal strings: 30, 294

Test #36:

score: 0
Accepted
time: 48ms
memory: 5120kb

input:

1000
24
27
21
15
25
24
25
22
31
28
25
22
25
31
28
28
25
32
23
33
23
30
27
23
29
23
20
27
28
21
28
29
28
27
23
28
24
25
28
27
19
23
30
26
24
30
25
28
25
18
25
30
29
28
26
27
23
22
33
24
18
28
19
22
20
27
26
23
28
25
26
21
28
24
27
23
22
31
28
24
28
25
28
29
24
29
22
29
26
25
28
28
23
29
20
31
16
28
2...

output:

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

result:

ok Found equal strings: 634, 904

Test #37:

score: 0
Accepted
time: 28ms
memory: 5120kb

input:

1000
23
21
26
20
21
23
18
30
22
18
24
21
31
23
19
22
27
23
27
31
20
24
24
23
25
26
24
27
23
29
23
23
24
24
26
24
25
20
32
24
32
25
23
23
29
26
24
23
29
25
25
19
28
26
20
24
23
24
24
24
24
25
19
30
27
27
26
26
22
26
26
23
21
23
23
26
21
29
25
23
26
22
25
33
26
28
24
22
26
23
35
25
25
24
23
25
23
27
2...

output:

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

result:

ok Found equal strings: 693, 778

Test #38:

score: 0
Accepted
time: 32ms
memory: 5248kb

input:

1000
29
32
29
19
24
33
22
27
22
18
26
25
32
21
23
22
17
23
23
30
19
21
19
30
32
29
26
31
22
31
25
23
22
17
26
26
23
28
28
26
21
26
32
21
21
24
25
26
29
28
22
22
27
18
25
29
26
35
25
23
26
31
33
20
27
18
29
26
29
23
29
34
25
30
26
31
24
24
24
29
26
32
23
24
23
28
27
23
27
28
29
26
26
25
24
20
24
31
2...

output:

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

result:

ok Found equal strings: 336, 912

Test #39:

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

input:

2
0

output:

1 2

result:

ok Found equal strings: 1, 2

Extra Test:

score: 0
Extra Test Passed