c# random number gen

librand.cs

namespace librand
{
    public class librand
    {
        public static int rand(int min, int max)
        {
            Random r = new Random();
            for (int i = min; i < max; i++)
            {
                if (r.Next(0, 2) == 1)
                {
                    return i;
                }
            }
            return max;
        }
    }
}