Question

How to implements the generic Fisher-Yates shuffle for string array in C#

Answer 1

using System;

namespace ConsoleApplication_C_Sharp
{
    class Program
    {
        static Random _random = new Random();

        static void ShuffleArray<T>(T[] array)
        {
            int n = array.Length;

            for (int i = 0; i < n; i++)
            {
                int rnd = i + (int)(_random.NextDouble() * (n - i));
                T t = array[rnd];
                array[rnd] = array[i];
                array[i] = t;
            }
        }

        static void Main(string[] args)
        {
            string[] arr = new string[]
            {
                "c#",
                "java",
                "c",
                "c++",
                "python"
            };

            ShuffleArray(arr);

            foreach (string s in arr)
                Console.WriteLine(s);
        }
    }
}

/*
run:
 
java
c#
c
c++
python
 
*/

 

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