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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. #include <time.h>
  4.  
  5. int randomInteger(int low, int high)
  6. {
  7. 	int k;
  8. 	double d;
  9. 	d = (double)rand() / ((double)RAND_MAX + 1);
  10. 	k = (int) (d * (high - low + 1));
  11. 	return low + k;
  12. }
  13.  
  14. void permutacaoAleatoria(int v[], int n) {
  15. 	int r, k, t;
  16. 	for (k = n - 1; k > 0; k--) {
  17. 		r = randomInteger(0, k);
  18. 		t = v[k], v[k] = v[r], v[r] = t;
  19. 	}
  20. }
  21.  
  22. void randomize()
  23. {
  24. 	srand(time(NULL));
  25. }
  26.  
  27. int main() {
  28.  
  29. 	int nums[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
  30. 	randomize();
  31. 	permutacaoAleatoria(nums, 10);
  32. 	int i;
  33. 	printf("Valores no vetor: [");
  34. 	for (i = 0; i < 10; i++)
  35. 		printf("%s%d", (i != 0 ? ", " : ""), nums[i]);
  36. 	printf("]");
  37. 	return 0;
  38. }
Success #stdin #stdout 0s 2160KB
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Standard input is empty
stdout
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Valores no vetor: [6, 1, 0, 4, 7, 8, 5, 2, 9, 3]
https://ideone.com/TCz0Ic
language:
C (gcc 8.3)
created:
7 years ago
visibility:
public

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