[Solved] fill array with random but unique numbers in C# [duplicate]

by


You could check if the newly generated number already exists in the array, if not then add it to the array, if yes then generate a new one.

For examle:

class Program
{
    static void Main(string[] args)
    {
        int[] x = new int[10];
        Random r = new Random();

        int i;
        for (i = 0; i < x.Length; i++)
        {
            var next = 0;                
            while (true)
            {
                next = r.Next(10);
                if (!Contains(x, next)) break;                    
            }

            x[i] = next;
            Console.WriteLine("x[{0}] = {1}", i, x[i]);
        }

        Console.ReadLine();
    }

    static bool Contains(int[] array, int value)
    {
        for (int i = 0; i < array.Length; i++)
        {
            if (array[i] == value) return true;
        }
        return false;
    }
}

2

solved fill array with random but unique numbers in C# [duplicate]