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  1. // written in the D programming language
  2. import std.algorithm;
  3. import std.array;
  4. import std.random;
  5. import std.range;
  6. import std.stdio;
  7.  
  8. void main ()
  9. {
  10. 	immutable int n = 3;
  11. 	immutable int steps = 10_100 * n ^^ n;
  12. 	int [n] p;
  13. 	int [int [n]] d;
  14. 	foreach (step; 0..steps)
  15. 	{
  16. 		p[] = n.iota.array;
  17. 		foreach (i; 0..n)
  18. 		{
  19. 			int j = uniform (0, n);
  20. 			swap (p[i], p[j]);
  21. 		}
  22. 		d[p] += 1;
  23. 	}
  24. 	writefln ("%(%s %s\n%)", d);
  25. }
  26.  
Success #stdin #stdout 0.11s 2732KB
comments (?)
stdin 
Standard input is empty
stdout 
[1, 2, 0] 50877
[0, 2, 1] 50543
[2, 0, 1] 40462
[2, 1, 0] 40214
[0, 1, 2] 40383
[1, 0, 2] 50221
https://ideone.com/ll50qs
naive shuffle, n = 3, random stats
language:
D (dmd 2.085.0)
created:
7 years ago
visibility:
public

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