I actually try to do the Credit Task back from pset1. So far i understand how the calculation for the checksum validation of the Credit Card Number works, and could do it on Paper.
The Problem, i have no clue of how even start with in the first place yet, is that i don´t know how to adress single numbers in an int to multiply ever 2nd Number and so on. I literally know the Plan but lack the tool to start with it right now.
Any advice would be highly appreciated.