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  1.  
  2. #include <stdio.h>
  3. #include <stdlib.h>
  4. int* array_remove(int* fa, int* la, int v);
  5. void array_println(FILE* _out, const int* fa, const int* la);
  6.  
  7. int compare(const void* a, const void* b){
  8. 	return *(int*)b - *(int*)a;
  9. }
  10.  
  11. int main(void){
  12. 	int*   e;
  13. 	int    a[] = { 0, 5, 0, 0, 1, 0, -7, 0, 0, 0, 0, 8, 0, -3, 0, 2, 0, 9, 0 };
  14. 	size_t n   = sizeof(a)/sizeof(a[0]);
  15.  
  16. 	array_println(stdout, a, a + n);
  17.  
  18. 	e = array_remove(a, a + n, 0);
  19. 	array_println(stdout, a, e);
  20.  
  21. 	n = (size_t)(e - a);
  22. 	qsort(a, n, sizeof(a[0]), &compare);
  23. 	array_println(stdout, a, e);
  24. 	return 0;
  25. }
  26.  
  27. int* array_remove(int* fa, int* la, int v){
  28. 	int* p;
  29. 	while((fa != la) && (*fa != v))
  30. 		++fa;
  31.  
  32. 	for(p = fa; fa != la; *fa = *(++p)){
  33. 		if(*fa == v)
  34. 			--la;
  35. 		else
  36. 			++fa;
  37. 	}
  38. 	return la;
  39. }
  40.  
  41. void array_println(FILE* _out, const int* fa, const int* la){
  42. 	while(fa != la)
  43. 		fprintf(_out, "%d ", *fa++);
  44. 	fputc('\n', _out);
  45. }
Success #stdin #stdout 0s 2156KB
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stdin
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Standard input is empty
stdout
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0 5 0 0 1 0 -7 0 0 0 0 8 0 -3 0 2 0 9 0 
5 1 -7 8 -3 2 9 
9 8 5 2 1 -3 -7
https://ideone.com/sm687T
language:
C (gcc 8.3)
created:
10 years ago
visibility:
public

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