import org.roaringbitmap.ArrayContainer;
import org.roaringbitmap.Container;
import org.roaringbitmap.RunContainer;

public class Main {
    public static void main(String[] args) {
        Container ac = new ArrayContainer().add(0,10);

        // Case1: should be true, but is false
        Container subset = new RunContainer().add(5,6);
        System.out.println(ac.contains(subset));

        // Case2: should be false, but is true
        Container rc = new RunContainer().add(5,11);
        System.out.println(ac.contains(rc));
    }
}