Advent of Code 2016 Day 20 /u/Philboyd_Studge

Advent2016_20.java

import java.util.*;

/**
 * @author /u/Philboyd_Studge on 12/19/2016.
 */
public class Advent2016_20 {

    public static void main(String[] args) {
        List<String[]> input = FileIO.getFileLinesSplit("advent14.txt", "-");

        TreeMap<Long, Long> blocked = new TreeMap<>();

        for (String[] each : input) {
            blocked.put(Long.parseLong(each[0]), Long.parseLong(each[1]));
        }


        Iterator<Long> i = blocked.navigableKeySet().iterator();
        Long first = i.next();
        Long last = 0L;
        Long count = 0L;

        while (i.hasNext()) {
            Long current = i.next();
            if ((blocked.get(first) + 1) > last) last = blocked.get(first) + 1;
            if (current > last) {
                System.out.println("unblocked " + last + " : current " + current);
                count += current - last;
            }
                first = current;

        }

        System.out.println(count);



    }
}