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  1. #include <stdio.h>
  2.  
  3. //наивный алгоритм O(n^2)
  4. int* unique_del(int* f, int *l){
  5. 	int t, *p;
  6. 	for(; f != l; ++f){
  7. 		p = f + 1;
  8. 		while(p < l){
  9. 			if(*p == *f){
  10. 				t        = *(l - 1);
  11. 				*(l - 1) = *p;
  12. 				*p       = t;
  13. 				--p;
  14. 				--l;
  15. 			}
  16. 			++p;
  17. 		}
  18. 	}
  19. 	return l;
  20. }
  21.  
  22.  
  23. int main(void){
  24. 	int* p, *e;
  25.  
  26. 	int  A[] = { 1, 2, 2, 3, 1, 3, 4, 1, 3, 3, 5, 4, 6, 5 };
  27.  
  28. 	e = unique_del(A, A + sizeof(A)/sizeof(A[0]));
  29. 	for(p = &A[0]; p != e; ++p)
  30. 		printf("%d ", *p);
  31. 	return 0;
  32. }
  33.  
Success #stdin #stdout 0s 2052KB
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https://ideone.com/RyTFHI
language:
C (gcc 8.3)
created:
8 years ago
visibility:
public

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