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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#865706#2730. Vera and Trail Buildinghhoppitree25 ✓1ms3840kbC++17505b2025-01-21 21:16:382025-01-21 21:16:49

Judging History

你现在查看的是最新测评结果

  • [2025-01-21 21:16:49]
  • 评测
  • 测评结果：25
  • 用时：1ms
  • 内存：3840kb
查看
  • [2025-01-21 21:16:38]
  • 提交

answer

#include <bits/stdc++.h>

using namespace std;

signed main() {
    int n, s = 0; scanf("%d", &n);
    vector<int> z;
    for (int i = 5000; i >= 2; --i) {
        while (n >= i * (i - 1) / 2) z.push_back(i), n -= i * (i - 1) / 2, s += i;
    }
    printf("%d %d\n", s, (int)z.size() - 1 + s);
    s = 0;
    for (auto x : z) {
        if (s) printf("%d %d\n", s, s + 1);
        for (int i = 1; i <= x; ++i) printf("%d %d\n", s + i, s + i % x + 1);
        s += x;
    }
    return 0;
}
Source code, Language: C++17

Details

Tip: Click on the bar to expand more detailed information

Subtask #1:

score: 3
Accepted

Test #1:

score: 3
Accepted
time: 0ms
memory: 3840kb

input:

1

output:

2 2
1 2
2 1

result:

ok good solution!

Test #2:

score: 3
Accepted
time: 1ms
memory: 3840kb

input:

84

output:

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

result:

ok good solution!

Test #3:

score: 3
Accepted
time: 1ms
memory: 3840kb

input:

124

output:

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

result:

ok good solution!

Test #4:

score: 3
Accepted
time: 0ms
memory: 3840kb

input:

162

output:

25 27
1 2
2 3
3 4
4 5
5 6
6 7
7 8
8 9
9 10
10 11
11 12
12 13
13 14
14 15
15 16
16 17
17 18
18 1
18 19
19 20
20 21
21 22
22 19
22 23
23 24
24 25
25 23

result:

ok good solution!

Test #5:

score: 3
Accepted
time: 0ms
memory: 3840kb

input:

339

output:

36 39
1 2
2 3
3 4
4 5
5 6
6 7
7 8
8 9
9 10
10 11
11 12
12 13
13 14
14 15
15 16
16 17
17 18
18 19
19 20
20 21
21 22
22 23
23 24
24 25
25 26
26 1
26 27
27 28
28 29
29 30
30 31
31 27
31 32
32 33
33 34
34 32
34 35
35 36
36 35

result:

ok good solution!

Test #6:

score: 3
Accepted
time: 1ms
memory: 3584kb

input:

440

output:

37 40
1 2
2 3
3 4
4 5
5 6
6 7
7 8
8 9
9 10
10 11
11 12
12 13
13 14
14 15
15 16
16 17
17 18
18 19
19 20
20 21
21 22
22 23
23 24
24 25
25 26
26 27
27 28
28 29
29 30
30 1
30 31
31 32
32 33
33 31
33 34
34 35
35 34
35 36
36 37
37 36

result:

ok good solution!

Test #7:

score: 3
Accepted
time: 0ms
memory: 3840kb

input:

514

output:

41 43
1 2
2 3
3 4
4 5
5 6
6 7
7 8
8 9
9 10
10 11
11 12
12 13
13 14
14 15
15 16
16 17
17 18
18 19
19 20
20 21
21 22
22 23
23 24
24 25
25 26
26 27
27 28
28 29
29 30
30 31
31 32
32 1
32 33
33 34
34 35
35 36
36 37
37 38
38 33
38 39
39 40
40 41
41 39

result:

ok good solution!

Test #8:

score: 3
Accepted
time: 1ms
memory: 3840kb

input:

650

output:

49 53
1 2
2 3
3 4
4 5
5 6
6 7
7 8
8 9
9 10
10 11
11 12
12 13
13 14
14 15
15 16
16 17
17 18
18 19
19 20
20 21
21 22
22 23
23 24
24 25
25 26
26 27
27 28
28 29
29 30
30 31
31 32
32 33
33 34
34 35
35 36
36 1
36 37
37 38
38 39
39 40
40 41
41 42
42 37
42 43
43 44
44 45
45 43
45 46
46 47
47 46
47 48
48 49
...

result:

ok good solution!

Test #9:

score: 3
Accepted
time: 0ms
memory: 3840kb

input:

714

output:

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

result:

ok good solution!

Test #10:

score: 3
Accepted
time: 1ms
memory: 3840kb

input:

739

output:

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

result:

ok good solution!

Test #11:

score: 3
Accepted
time: 0ms
memory: 3840kb

input:

841

output:

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

result:

ok good solution!

Test #12:

score: 3
Accepted
time: 0ms
memory: 3840kb

input:

879

output:

51 53
1 2
2 3
3 4
4 5
5 6
6 7
7 8
8 9
9 10
10 11
11 12
12 13
13 14
14 15
15 16
16 17
17 18
18 19
19 20
20 21
21 22
22 23
23 24
24 25
25 26
26 27
27 28
28 29
29 30
30 31
31 32
32 33
33 34
34 35
35 36
36 37
37 38
38 39
39 40
40 41
41 42
42 1
42 43
43 44
44 45
45 46
46 47
47 48
48 43
48 49
49 50
50 51
...

result:

ok good solution!

Test #13:

score: 3
Accepted
time: 0ms
memory: 3840kb

input:

978

output:

57 60
1 2
2 3
3 4
4 5
5 6
6 7
7 8
8 9
9 10
10 11
11 12
12 13
13 14
14 15
15 16
16 17
17 18
18 19
19 20
20 21
21 22
22 23
23 24
24 25
25 26
26 27
27 28
28 29
29 30
30 31
31 32
32 33
33 34
34 35
35 36
36 37
37 38
38 39
39 40
40 41
41 42
42 43
43 44
44 1
44 45
45 46
46 47
47 48
48 49
49 50
50 51
51 52
...

result:

ok good solution!

Test #14:

score: 3
Accepted
time: 0ms
memory: 3840kb

input:

981

output:

58 61
1 2
2 3
3 4
4 5
5 6
6 7
7 8
8 9
9 10
10 11
11 12
12 13
13 14
14 15
15 16
16 17
17 18
18 19
19 20
20 21
21 22
22 23
23 24
24 25
25 26
26 27
27 28
28 29
29 30
30 31
31 32
32 33
33 34
34 35
35 36
36 37
37 38
38 39
39 40
40 41
41 42
42 43
43 44
44 1
44 45
45 46
46 47
47 48
48 49
49 50
50 51
51 52
...

result:

ok good solution!

Test #15:

score: 3
Accepted
time: 0ms
memory: 3840kb

input:

1000

output:

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

result:

ok good solution!

Subtask #2:

score: 6
Accepted

Dependency #1:

100%
Accepted

Test #16:

score: 6
Accepted
time: 1ms
memory: 3712kb

input:

1001

output:

52 54
1 2
2 3
3 4
4 5
5 6
6 7
7 8
8 9
9 10
10 11
11 12
12 13
13 14
14 15
15 16
16 17
17 18
18 19
19 20
20 21
21 22
22 23
23 24
24 25
25 26
26 27
27 28
28 29
29 30
30 31
31 32
32 33
33 34
34 35
35 36
36 37
37 38
38 39
39 40
40 41
41 42
42 43
43 44
44 45
45 1
45 46
46 47
47 48
48 49
49 50
50 46
50 51
...

result:

ok good solution!

Test #17:

score: 6
Accepted
time: 0ms
memory: 3840kb

input:

16594

output:

201 203
1 2
2 3
3 4
4 5
5 6
6 7
7 8
8 9
9 10
10 11
11 12
12 13
13 14
14 15
15 16
16 17
17 18
18 19
19 20
20 21
21 22
22 23
23 24
24 25
25 26
26 27
27 28
28 29
29 30
30 31
31 32
32 33
33 34
34 35
35 36
36 37
37 38
38 39
39 40
40 41
41 42
42 43
43 44
44 45
45 46
46 47
47 48
48 49
49 50
50 51
51 52
52 ...

result:

ok good solution!

Test #18:

score: 6
Accepted
time: 0ms
memory: 3840kb

input:

18190

output:

201 202
1 2
2 3
3 4
4 5
5 6
6 7
7 8
8 9
9 10
10 11
11 12
12 13
13 14
14 15
15 16
16 17
17 18
18 19
19 20
20 21
21 22
22 23
23 24
24 25
25 26
26 27
27 28
28 29
29 30
30 31
31 32
32 33
33 34
34 35
35 36
36 37
37 38
38 39
39 40
40 41
41 42
42 43
43 44
44 45
45 46
46 47
47 48
48 49
49 50
50 51
51 52
52 ...

result:

ok good solution!

Test #19:

score: 6
Accepted
time: 0ms
memory: 3840kb

input:

23552

output:

239 242
1 2
2 3
3 4
4 5
5 6
6 7
7 8
8 9
9 10
10 11
11 12
12 13
13 14
14 15
15 16
16 17
17 18
18 19
19 20
20 21
21 22
22 23
23 24
24 25
25 26
26 27
27 28
28 29
29 30
30 31
31 32
32 33
33 34
34 35
35 36
36 37
37 38
38 39
39 40
40 41
41 42
42 43
43 44
44 45
45 46
46 47
47 48
48 49
49 50
50 51
51 52
52 ...

result:

ok good solution!

Test #20:

score: 6
Accepted
time: 0ms
memory: 3840kb

input:

40736

output:

316 319
1 2
2 3
3 4
4 5
5 6
6 7
7 8
8 9
9 10
10 11
11 12
12 13
13 14
14 15
15 16
16 17
17 18
18 19
19 20
20 21
21 22
22 23
23 24
24 25
25 26
26 27
27 28
28 29
29 30
30 31
31 32
32 33
33 34
34 35
35 36
36 37
37 38
38 39
39 40
40 41
41 42
42 43
43 44
44 45
45 46
46 47
47 48
48 49
49 50
50 51
51 52
52 ...

result:

ok good solution!

Test #21:

score: 6
Accepted
time: 0ms
memory: 3840kb

input:

47132

output:

333 337
1 2
2 3
3 4
4 5
5 6
6 7
7 8
8 9
9 10
10 11
11 12
12 13
13 14
14 15
15 16
16 17
17 18
18 19
19 20
20 21
21 22
22 23
23 24
24 25
25 26
26 27
27 28
28 29
29 30
30 31
31 32
32 33
33 34
34 35
35 36
36 37
37 38
38 39
39 40
40 41
41 42
42 43
43 44
44 45
45 46
46 47
47 48
48 49
49 50
50 51
51 52
52 ...

result:

ok good solution!

Test #22:

score: 6
Accepted
time: 0ms
memory: 3840kb

input:

50925

output:

349 353
1 2
2 3
3 4
4 5
5 6
6 7
7 8
8 9
9 10
10 11
11 12
12 13
13 14
14 15
15 16
16 17
17 18
18 19
19 20
20 21
21 22
22 23
23 24
24 25
25 26
26 27
27 28
28 29
29 30
30 31
31 32
32 33
33 34
34 35
35 36
36 37
37 38
38 39
39 40
40 41
41 42
42 43
43 44
44 45
45 46
46 47
47 48
48 49
49 50
50 51
51 52
52 ...

result:

ok good solution!

Test #23:

score: 6
Accepted
time: 1ms
memory: 3840kb

input:

54753

output:

352 355
1 2
2 3
3 4
4 5
5 6
6 7
7 8
8 9
9 10
10 11
11 12
12 13
13 14
14 15
15 16
16 17
17 18
18 19
19 20
20 21
21 22
22 23
23 24
24 25
25 26
26 27
27 28
28 29
29 30
30 31
31 32
32 33
33 34
34 35
35 36
36 37
37 38
38 39
39 40
40 41
41 42
42 43
43 44
44 45
45 46
46 47
47 48
48 49
49 50
50 51
51 52
52 ...

result:

ok good solution!

Test #24:

score: 6
Accepted
time: 0ms
memory: 3840kb

input:

56301

output:

343 344
1 2
2 3
3 4
4 5
5 6
6 7
7 8
8 9
9 10
10 11
11 12
12 13
13 14
14 15
15 16
16 17
17 18
18 19
19 20
20 21
21 22
22 23
23 24
24 25
25 26
26 27
27 28
28 29
29 30
30 31
31 32
32 33
33 34
34 35
35 36
36 37
37 38
38 39
39 40
40 41
41 42
42 43
43 44
44 45
45 46
46 47
47 48
48 49
49 50
50 51
51 52
52 ...

result:

ok good solution!

Test #25:

score: 6
Accepted
time: 1ms
memory: 3840kb

input:

64921

output:

387 389
1 2
2 3
3 4
4 5
5 6
6 7
7 8
8 9
9 10
10 11
11 12
12 13
13 14
14 15
15 16
16 17
17 18
18 19
19 20
20 21
21 22
22 23
23 24
24 25
25 26
26 27
27 28
28 29
29 30
30 31
31 32
32 33
33 34
34 35
35 36
36 37
37 38
38 39
39 40
40 41
41 42
42 43
43 44
44 45
45 46
46 47
47 48
48 49
49 50
50 51
51 52
52 ...

result:

ok good solution!

Test #26:

score: 6
Accepted
time: 0ms
memory: 3840kb

input:

78970

output:

432 435
1 2
2 3
3 4
4 5
5 6
6 7
7 8
8 9
9 10
10 11
11 12
12 13
13 14
14 15
15 16
16 17
17 18
18 19
19 20
20 21
21 22
22 23
23 24
24 25
25 26
26 27
27 28
28 29
29 30
30 31
31 32
32 33
33 34
34 35
35 36
36 37
37 38
38 39
39 40
40 41
41 42
42 43
43 44
44 45
45 46
46 47
47 48
48 49
49 50
50 51
51 52
52 ...

result:

ok good solution!

Test #27:

score: 6
Accepted
time: 0ms
memory: 3840kb

input:

85787

output:

451 456
1 2
2 3
3 4
4 5
5 6
6 7
7 8
8 9
9 10
10 11
11 12
12 13
13 14
14 15
15 16
16 17
17 18
18 19
19 20
20 21
21 22
22 23
23 24
24 25
25 26
26 27
27 28
28 29
29 30
30 31
31 32
32 33
33 34
34 35
35 36
36 37
37 38
38 39
39 40
40 41
41 42
42 43
43 44
44 45
45 46
46 47
47 48
48 49
49 50
50 51
51 52
52 ...

result:

ok good solution!

Test #28:

score: 6
Accepted
time: 0ms
memory: 3840kb

input:

96291

output:

466 470
1 2
2 3
3 4
4 5
5 6
6 7
7 8
8 9
9 10
10 11
11 12
12 13
13 14
14 15
15 16
16 17
17 18
18 19
19 20
20 21
21 22
22 23
23 24
24 25
25 26
26 27
27 28
28 29
29 30
30 31
31 32
32 33
33 34
34 35
35 36
36 37
37 38
38 39
39 40
40 41
41 42
42 43
43 44
44 45
45 46
46 47
47 48
48 49
49 50
50 51
51 52
52 ...

result:

ok good solution!

Test #29:

score: 6
Accepted
time: 0ms
memory: 3840kb

input:

97044

output:

451 453
1 2
2 3
3 4
4 5
5 6
6 7
7 8
8 9
9 10
10 11
11 12
12 13
13 14
14 15
15 16
16 17
17 18
18 19
19 20
20 21
21 22
22 23
23 24
24 25
25 26
26 27
27 28
28 29
29 30
30 31
31 32
32 33
33 34
34 35
35 36
36 37
37 38
38 39
39 40
40 41
41 42
42 43
43 44
44 45
45 46
46 47
47 48
48 49
49 50
50 51
51 52
52 ...

result:

ok good solution!

Test #30:

score: 6
Accepted
time: 0ms
memory: 3840kb

input:

100000

output:

483 487
1 2
2 3
3 4
4 5
5 6
6 7
7 8
8 9
9 10
10 11
11 12
12 13
13 14
14 15
15 16
16 17
17 18
18 19
19 20
20 21
21 22
22 23
23 24
24 25
25 26
26 27
27 28
28 29
29 30
30 31
31 32
32 33
33 34
34 35
35 36
36 37
37 38
38 39
39 40
40 41
41 42
42 43
43 44
44 45
45 46
46 47
47 48
48 49
49 50
50 51
51 52
52 ...

result:

ok good solution!

Subtask #3:

score: 16
Accepted

Dependency #1:

100%
Accepted

Dependency #2:

100%
Accepted

Test #31:

score: 16
Accepted
time: 0ms
memory: 3840kb

input:

100001

output:

485 490
1 2
2 3
3 4
4 5
5 6
6 7
7 8
8 9
9 10
10 11
11 12
12 13
13 14
14 15
15 16
16 17
17 18
18 19
19 20
20 21
21 22
22 23
23 24
24 25
25 26
26 27
27 28
28 29
29 30
30 31
31 32
32 33
33 34
34 35
35 36
36 37
37 38
38 39
39 40
40 41
41 42
42 43
43 44
44 45
45 46
46 47
47 48
48 49
49 50
50 51
51 52
52 ...

result:

ok good solution!

Test #32:

score: 16
Accepted
time: 1ms
memory: 3840kb

input:

626091

output:

1160 1163
1 2
2 3
3 4
4 5
5 6
6 7
7 8
8 9
9 10
10 11
11 12
12 13
13 14
14 15
15 16
16 17
17 18
18 19
19 20
20 21
21 22
22 23
23 24
24 25
25 26
26 27
27 28
28 29
29 30
30 31
31 32
32 33
33 34
34 35
35 36
36 37
37 38
38 39
39 40
40 41
41 42
42 43
43 44
44 45
45 46
46 47
47 48
48 49
49 50
50 51
51 52
5...

result:

ok good solution!

Test #33:

score: 16
Accepted
time: 0ms
memory: 3840kb

input:

1552640

output:

1822 1826
1 2
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48 49
49 50
50 51
51 52
5...

result:

ok good solution!

Test #34:

score: 16
Accepted
time: 1ms
memory: 3712kb

input:

2021619

output:

2048 2050
1 2
2 3
3 4
4 5
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39 40
40 41
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42 43
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44 45
45 46
46 47
47 48
48 49
49 50
50 51
51 52
5...

result:

ok good solution!

Test #35:

score: 16
Accepted
time: 0ms
memory: 3840kb

input:

2568154

output:

2337 2340
1 2
2 3
3 4
4 5
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39 40
40 41
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42 43
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44 45
45 46
46 47
47 48
48 49
49 50
50 51
51 52
5...

result:

ok good solution!

Test #36:

score: 16
Accepted
time: 1ms
memory: 3840kb

input:

4298188

output:

2992 2995
1 2
2 3
3 4
4 5
5 6
6 7
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8 9
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11 12
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39 40
40 41
41 42
42 43
43 44
44 45
45 46
46 47
47 48
48 49
49 50
50 51
51 52
5...

result:

ok good solution!

Test #37:

score: 16
Accepted
time: 1ms
memory: 3840kb

input:

4459030

output:

3061 3063
1 2
2 3
3 4
4 5
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6 7
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12 13
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39 40
40 41
41 42
42 43
43 44
44 45
45 46
46 47
47 48
48 49
49 50
50 51
51 52
5...

result:

ok good solution!

Test #38:

score: 16
Accepted
time: 1ms
memory: 3840kb

input:

4678019

output:

3107 3109
1 2
2 3
3 4
4 5
5 6
6 7
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10 11
11 12
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39 40
40 41
41 42
42 43
43 44
44 45
45 46
46 47
47 48
48 49
49 50
50 51
51 52
5...

result:

ok good solution!

Test #39:

score: 16
Accepted
time: 0ms
memory: 3840kb

input:

5383088

output:

3359 3362
1 2
2 3
3 4
4 5
5 6
6 7
7 8
8 9
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10 11
11 12
12 13
13 14
14 15
15 16
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38 39
39 40
40 41
41 42
42 43
43 44
44 45
45 46
46 47
47 48
48 49
49 50
50 51
51 52
5...

result:

ok good solution!

Test #40:

score: 16
Accepted
time: 1ms
memory: 3840kb

input:

6259742

output:

3623 3627
1 2
2 3
3 4
4 5
5 6
6 7
7 8
8 9
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10 11
11 12
12 13
13 14
14 15
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39 40
40 41
41 42
42 43
43 44
44 45
45 46
46 47
47 48
48 49
49 50
50 51
51 52
5...

result:

ok good solution!

Test #41:

score: 16
Accepted
time: 1ms
memory: 3840kb

input:

8983485

output:

4292 4295
1 2
2 3
3 4
4 5
5 6
6 7
7 8
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11 12
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13 14
14 15
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38 39
39 40
40 41
41 42
42 43
43 44
44 45
45 46
46 47
47 48
48 49
49 50
50 51
51 52
5...

result:

ok good solution!

Test #42:

score: 16
Accepted
time: 1ms
memory: 3840kb

input:

9147543

output:

4377 4381
1 2
2 3
3 4
4 5
5 6
6 7
7 8
8 9
9 10
10 11
11 12
12 13
13 14
14 15
15 16
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19 20
20 21
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22 23
23 24
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25 26
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28 29
29 30
30 31
31 32
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36 37
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38 39
39 40
40 41
41 42
42 43
43 44
44 45
45 46
46 47
47 48
48 49
49 50
50 51
51 52
5...

result:

ok good solution!

Test #43:

score: 16
Accepted
time: 0ms
memory: 3840kb

input:

9473152

output:

4410 4413
1 2
2 3
3 4
4 5
5 6
6 7
7 8
8 9
9 10
10 11
11 12
12 13
13 14
14 15
15 16
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18 19
19 20
20 21
21 22
22 23
23 24
24 25
25 26
26 27
27 28
28 29
29 30
30 31
31 32
32 33
33 34
34 35
35 36
36 37
37 38
38 39
39 40
40 41
41 42
42 43
43 44
44 45
45 46
46 47
47 48
48 49
49 50
50 51
51 52
5...

result:

ok good solution!

Test #44:

score: 16
Accepted
time: 1ms
memory: 3840kb

input:

9885192

output:

4551 4556
1 2
2 3
3 4
4 5
5 6
6 7
7 8
8 9
9 10
10 11
11 12
12 13
13 14
14 15
15 16
16 17
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18 19
19 20
20 21
21 22
22 23
23 24
24 25
25 26
26 27
27 28
28 29
29 30
30 31
31 32
32 33
33 34
34 35
35 36
36 37
37 38
38 39
39 40
40 41
41 42
42 43
43 44
44 45
45 46
46 47
47 48
48 49
49 50
50 51
51 52
5...

result:

ok good solution!

Test #45:

score: 16
Accepted
time: 1ms
memory: 3840kb

input:

10000000

output:

4562 4565
1 2
2 3
3 4
4 5
5 6
6 7
7 8
8 9
9 10
10 11
11 12
12 13
13 14
14 15
15 16
16 17
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18 19
19 20
20 21
21 22
22 23
23 24
24 25
25 26
26 27
27 28
28 29
29 30
30 31
31 32
32 33
33 34
34 35
35 36
36 37
37 38
38 39
39 40
40 41
41 42
42 43
43 44
44 45
45 46
46 47
47 48
48 49
49 50
50 51
51 52
5...

result:

ok good solution!

Extra Test:

score: 0
Extra Test Passed
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Server Time: 2025-01-25 03:47:04 | OpenSource Project