fork download
copy 
  1. using System;
  2.  
  3. public class Test
  4. {
  5. 	public static int[] RandomIndexes(int size) {
  6.     	int[] result = new int[size];
  7.     	for (int i = 0; i < size; i++) {
  8.             result[i] = i;
  9.     	}
  10.     	ShuffleArray(result);
  11.         return result;
  12.     }
  13.  
  14.     private static Random r = new Random();
  15. 	public static void ShuffleArray(int [] array) {
  16.         for (int i = 0; i < array.Length; i++) {
  17.             int j = r.Next(array.Length);
  18.         	int tmp = array[i];
  19.             array[i] = array[j];
  20.             array[j] = tmp;
  21.         }
  22.     }
  23.  
  24. 	public static void Main()
  25. 	{
  26. 		int[] array =  RandomIndexes(10);
  27.         for (int i = 0; i < array.Length; i++) {
  28.             Console.WriteLine(array[i]);
  29.         }
  30. 	}
  31. }
Success #stdin #stdout 0.03s 33856KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
7
0
3
1
6
9
2
4
5
8
https://ideone.com/IkwzRA
shuffle and random index array
language:
C# (gmcs 5.20.1)
created:
9 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!