The lead game..can some one point out the mistake.

Problem link - http://www.codechef.com/problems/TLG

Solution-

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.util.SortedSet;
import java.util.TreeSet;

public class TheLeadGame {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        PrintWriter pw = new PrintWriter(new BufferedWriter(
                new OutputStreamWriter(System.out)));
        int num = Integer.parseInt(br.readLine());
        SortedSet<Integer> pl1 = new TreeSet<Integer>();
        SortedSet<Integer> pl2 = new TreeSet<Integer>();
        while (num-- > 0) {
            String strr[] = br.readLine().split(" ");
            if (Integer.parseInt(strr[0]) > Integer.parseInt(strr[1])) {
                pl1.add((Integer.parseInt(strr[0])) - Integer.parseInt(strr[1]));
            } else {
                pl2.add((Integer.parseInt(strr[1])) - Integer.parseInt(strr[0]));
            }
        }
        if (pl1.last() > pl2.last()) {
            pw.println(1 + " " + pl1.last());
        } else {
            pw.println(2 + " " + pl2.last());
        }
        pw.close();
    }
}