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

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

-1
-1

6
2 3
3 4
4 5
2 3
4 5
1 2
-1