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  1. #include <stdio.h>
  2. #include <stdlib.h>
  3. #include <time.h>
  4.  
  5. void add(int **a, int element, int *size, int index);
  6.  
  7. int main(void){
  8. 	int size = 10;
  9. 	int *a;
  10. 	a = malloc(size*sizeof(int));
  11. 	int i;
  12. 	clock_t start, stop;
  13. 	start = clock();
  14.  
  15. 	for (i = 0; i < 100000; i++){
  16. 		add(&a, i, &size, i);
  17. 	}
  18.  
  19. 	stop = clock();
  20. 	printf("Adding arry by one: %10.2f\n", (double)(stop - start));
  21.  
  22. 	free(a);
  23. 	return 0;
  24. }
  25.  
  26. void add(int **a, int element, int *size, int index){
  27. 	if (index < *size){
  28. 		(*a)[index] = element;
  29. 	} else {// if (index >= *size){
  30. 		*a = realloc(*a, sizeof(int)*(*size = index + 1));
  31. 		(*a)[index] = element;
  32. 	}
  33. }
Success #stdin #stdout 0s 2292KB
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Standard input is empty
stdout
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Adding arry by one:    9219.00
https://ideone.com/xzKxmw
language:
C99 (gcc 8.3)
created:
9 years ago
visibility:
public

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