What should we print for 0/0 case? For example consider this case:

1

2 4

1 2

1 5

here number of possible subsets are zero and total cost is also zero.

What should we print for 0/0 case? For example consider this case:

1

2 4

1 2

1 5

here number of possible subsets are zero and total cost is also zero.

This is not a possible as its clearly mentioned in the constrains of input

0 ≤ M ≤ K,where K is the number of different colors in the test

case.

Here in your case **M=4** and **K=1** as the number of **different** colors is one ( i and i )

So such a case would not come