input:

10000
15 14
13 12
5 4
9 8
11 12
15 14
10 9
14 13
2 3
2 1
6 5
10 11
3 4
7 6
8 7
6 5
2 1
2 4
4 6
2 3
3 5
10 9
8 3
9 4
5 6
5 10
3 2
5 4
2 7
1 2
4 3
2 1
2 1
2 1
2 1
9 8
9 8
5 4
1 2
6 5
3 4
3 2
7 8
7 6
2 1
1 2
14 13
3 10
5 6
2 9
11 4
2 3
2 1
8 7
13 6
5 4
5 12
6 7
4 3
7 14
16 15
2 3
2 1
6 10
6 9
6 4
9 11
...

output:

4
13 12 5 4 
2
2 4 
3
8 3 9 
1
1 
1
1 
3
3 4 7 
1
1 
4
3 10 13 6 
4
6 10 4 13 
4
2 14 12 8 
4
11 10 16 5 
3
8 6 3 
3
10 5 2 
4
8 5 13 16 
2
2 4 
4
4 5 12 13 
3
2 4 7 
1
1 
3
5 3 9 
4
2 19 11 6 
2
3 2 
3
8 6 3 
4
7 14 2 9 
4
4 7 11 17 
2
6 2 
4
9 8 4 13 
2
4 3 
4
11 3 8 16 
2
3 2 
3
2 6 7 
5
16 15 6 ...

result:

wrong answer Condition failed: "getMaxBfsDist(n, subset) <= csqrtn" (test case 38)