#include <stdio.h>
 
#define SIZE(arr) (sizeof (arr) / sizeof (*arr))
 
int main(void)
{
    int arr[] = { 
                    1, 1, 2, 3, 2, 2, 4, 5, 6, 2 
                };
    int count_iter = 0;
    for (int i = 0; i < SIZE(arr); ++count_iter, ++i)
    {
        int j;
        for (j = 0; j < SIZE(arr); ++count_iter, ++j)
            if (arr[i] == arr[j] && i != j)
                break;
        if (j == SIZE(arr))
            printf("%d\n", arr[i]);
    } 
    printf("Count_itet: %d\n", count_iter);
}

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