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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. #include <time.h>
  4.  
  5. void shuffle_sattolo(int *a, size_t size)
  6. {
  7. 	while (size > 1)
  8. 	{
  9. 		size--;
  10. 		int j = rand() % size;
  11. 		int tmp = a[j];
  12. 		a[j] = a[size];
  13. 		a[size] = tmp;
  14. 	}
  15. }
  16.  
  17. int main(int argc, char **argv)
  18. {
  19. 	srand(time(NULL));
  20.  
  21. 	int arr1[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14};
  22. 	shuffle_sattolo(arr1, 14);
  23.  
  24. 	int arr2[] = {0, 1, 2, 3};
  25. 	shuffle_sattolo(arr2, 4);
  26.  
  27. 	for (size_t i = 0; i < 14; i++)
  28. 		printf("%d ", arr1[i]);
  29.  
  30. 	putchar('\n');
  31.  
  32. 	int a, b, c, d;
  33. 	a = arr2[0]; b = arr2[1]; c = arr2[2]; d = arr2[3];
  34. 	printf("%d\n", a);
  35. 	printf("%d\n", b);
  36. 	printf("%d\n", c);
  37. 	printf("%d\n", d);
  38.  
  39. 	return 0;
  40. }
Success #stdin #stdout 0s 2168KB
comments (?)
stdin 
Standard input is empty
stdout 
9 11 12 3 6 1 4 2 13 14 7 5 10 8 
2
3
1
0
https://ideone.com/0AtJpd
language:
C99 (gcc 8.3)
created:
8 years ago
visibility:
public

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