I have a problem with an "ATM" machine programming...

we want to model an ATM. the ATM give note of 10, 20 and 50 euro.

taking into account following logic...:

the withdrawed amount is always composed of the maximum number of highest notes. en the maximum number notes of the next value.

Example: the requested amount = 90

this gives 1 note of 50 , 2 notes of 20

(NOT 4 of 20 and 1 of 10)

the returned amount is at least equal to the requested value. so the ATM rounds up.

example if requested is 75 then you get 80 back (1x50, 1x20 and 1x10) 1 van 10€), if U ask 96 u get 100 (2 x50 )

each type of note should be a different class

the returned amount should also be a sepperate class.

Can someone help me with this, because, I'm getting desperate about how to solve this!

thnx

T