Add Solution to problem-001

[André Vieira da Silva]

/*
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.
Find the sum of all the multiples of 3 or 5 below 1000.
*/

[Suyash Sachdeva]

Sir can you please assign me this issue