Unable to dry run this testcase?
Try making a new request with small values of n_high, t_high, *_high, etc.

7 16
1 2
1 3
1 5
1 6
1 7
2 4
2 6
3 4
3 5
3 7
4 5
4 6
4 7
5 6
5 7
6 7

4

3