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  1. #include <stdio.h>
  2.  
  3. int exists(int arr[], int size, int num) {
  4. 	int i;
  5. 	for (i = 0; i < size; ++i) if (arr[i] == num) return 1;
  6. 	return 0;
  7. }
  8.  
  9. int main(void) {
  10. 	int size, i, len = 0;
  11. 	scanf("%d", &size);
  12. 	int array[size], dups[size];
  13. 	for (i = 0; i < size; ++i) {
  14. 		scanf("%d", &array[i]);
  15. 		if (exists(array, i, array[i]) && !exists(dups, len, array[i]))
  16. 			printf("%d ", dups[len++] = array[i]);
  17. 	}
  18. 	return 0;
  19. }
Success #stdin #stdout 0s 2012KB
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https://ideone.com/OOAJgt
language:
C (gcc 8.3)
created:
10 years ago
visibility:
public

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