Cartesian Product + N x M Dynamic Array

Question

I have looked hours for a solution without any success. Hopefully someone can help me out.

I have a dynamic array of N items on M origin zip codes.

For insta

Answer 1

You can use linq for that:

var item1 = new[] { 11001, 54010, 60621 };
var item2 = new[] {  11001, 60621 };
var item3 = new [] { 60621 };
IEnumerable cartesian = 
    from i1 in item1
    from i2 in item2
    from i3 in item3
    select new[] { i1, i2, i3 };