Ahhh Ok, is fisic money.

It was not something that I had in mind.

Thanks.

You should try reading the previous posts before creating your own, it's being explained before (AleksanderPopov's post for instance).

That test is ok, you don't need to always use only 25 dollars bills to give the change.

the t6 test is wrong. {25, 25, 25, 25, 50,100,50} expected YES but it's No:

25, 25, 25, 25 = 100.
50 - change 25
100 - change 75
50 - change 25 total: 125. is wrong.