Combinations With Repetitions C#

Question

I need assistance with Combinations with Repetition. Have searched all over the net and although I found a few examples I can\'t understand them completely. My goal is simpl

Answer 1

 string[] items = {"1", "2", "3"};

var query = from i1 in items
            from i2 in items
            from i3 in items

            select i1 + i2 + i3 ;


foreach(var result in query)
    Console.WriteLine(result);
            Console.ReadKey();