Question

How can I populate an array or list with sums that don’t go higher than 10?
I could do this with 3 arrays where 2 of them hold random numbers which the answer is not higher than 10, and a 3rd array to have the answers in it.

But that’s kind of an ugly way of doing this.

To be more clear with what I want:

1 + 1 = 2
5 + 5 = 10
3 + 2 = 5

etc etc

The user only gets to see the 1 + 1 at first. And when the time is up, the user gets to see the answer.

So does anyone has another solution then what I’m about to tryout?

Answer 1

Most likely you are trying to do something like this. This compiled but is untested. Noted how to create these pairs using the random number generator and subtraction.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication1
{
    class Program
    {

        struct addition_pairs{
            public int first;
            public int second;
        }

        static void Main(string[] args)
        { 

         List<addition_pairs> main_list;
         main_list = new List<addition_pairs>();
       //TODO call populate_list and choose how many sets you want.

        }

        private void populate_list(int how_many, List<addition_pairs> list)
        {
            for (int i = 0; i < how_many; i++)
            {
                Random random = new Random();
                int randomNumber1 = random.Next(0, 10);
                addition_pairs insert = new addition_pairs();
                insert.first = randomNumber1;
                insert.second = random.Next(0, 10-randomNumber1);
                list.Add(insert);
            }

        }
    }
}

EDIT: FIXED so it doesn’t add to 10 every time LOL. I passed math i promise