Visto che il testo chiede:
You need to write a single line with two strictly positive integers: respectively, the number of objects
of type one and type two that Luca should buy, in order to spend his giftcard with the minimum total
number of objects.
nei costraints invece di
C1, C2 ≤ N.
non dovrebbe essere:
C1 + C2 ≤ N. ?