unique.c

/**
 * Figure out unique numbers from an array
 *
 */
#include <stdio.h>

int main()
{
    int arr[10], arr_size;
    
    // Calculate array size dynamically
    arr_size = sizeof(arr) / sizeof(arr[0]);

    printf("Enter 10 numbers and get unique numbers among them!\n");
    printf("===================================================\n");

    for (int input=0; input<arr_size; input++)
    {
        scanf("%d", &arr[input]);
    }

    for (int i=0; i<arr_size; i++)
    {
        int unique = 1; // 1 for unique and zero for non
        for(int j=0; j<arr_size; j++)
        {
            if (arr[i] == arr[j] && i != j) {
                unique = 0;
                break;
            }
        }
        if (unique)
            printf("Unique: %d\n", arr[i]);
    }

    return 0;
}