九度OJ---1041

http://ac.jobdu.com/problem.php?pid=1041

import java.util.Iterator;

importjava.util.Scanner;

importjava.util.TreeSet;

 

publicclassMain {

 

    publicstaticvoidmain(String[] args) {

        Scanner sc=newScanner(System.in);

        while(sc.hasNext()){

            intN=sc.nextInt();

            TreeSet ts=newTreeSet();

            for(inti=0;i<N;i++){

                inttemp=sc.nextInt();

                ts.add(temp);

            }

            Iterator it;

            intcount=ts.size();

            for(it=ts.iterator();it.hasNext()&&count>1;count--){

                System.out.print(it.next()+" ");

            }

            System.out.println(it.next());

        }

    }

 

}