import java.util.concurrent.CountDownLatch;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;

public class Monitor {

    private int minsteTall;
    private Lock laas = new ReentrantLock();
    private CountDownLatch cdl;

    public Monitor(int minsteTall, int antTraader){
        this.minsteTall = minsteTall;
        cdl = new CountDownLatch(antTraader);
    }

    public void settTall(int tall){
        laas.lock();
        try{
            if(tall < minsteTall) minsteTall = tall;
            cdl.countDown();
        } finally {
            laas.unlock();
        }
        
    }

    public int hentMinste(){
        try {
            cdl.await();
        } catch (Exception e) {}
        laas.lock();
        try{
            return minsteTall;
        }finally{
            laas.unlock();
        }
    }
    
}