If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23. Finish the solution so that it returns the sum of all the multiples of ...
Let me ask you something: have you ever given up on learning programming? I started by buying books and teaching myself, but I would get stuck not understanding error ...