void repeating_element(int arr[], int n)
{
    int i, j;
    int count = 0;
    printf("Repeating elements are: ");
    for(i = 0;i < n;i++)
    {
        for(j = i+1;j < n;j++)
        {
            if(arr[i] == arr[j])
            {
                cout << arr[j] << " ";
            }
        }
    }
}
int main()
{
    int n;
    cin >> n;
    int arr[n];
    int i;
    for(i = 0; i < n; i++)
    {
        cin >> arr[i];
    }
    repeating_element(arr,n);
    return 0;
}

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