Generate a series of random numbers that add up to N in c#

Question

How do I generate 30 random numbers between 1-9, that all add up to 200 (or some arbitrary N), in C#?

I\'m trying to generate a string of digits that can add togethe

Answer 1

I think this is the simplest way to do it, so it may lack some sophistication however it will get you there.

        String output = "";
        int sum = 0;
        int result = 200;       //enter the "end number"

        Random r = new Random();

        while (sum != result) {
            int add;
            if ((result - sum) > 10)
            {
                add = r.Next(1, 10);
            }
            else
            {
                add = r.Next(result - sum + 1);
            }

            sum += add;
            output += add.ToString() + " + ";
        }

        output = output.Remove(output.Length - 2);

        Console.WriteLine(output);

Hope it helps!