SnowWhite

package exams.january2018;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.HashMap;
import java.util.Map;

public class P04_SnowWhite {
    public static void main(String[] args) throws IOException {
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));

        Map<String, HashMap<String, Long>> map = new HashMap<>();

        while (true) {
            String input = reader.readLine();
            if("Once upon a time".equals(input)) break;

            String[] line = input.split("[\\s<:>]+");
            String name = line[0];
            String color = line[1];
            long physics = Long.parseLong(line[2]);

            if (!map.containsKey(name)) {
                map.put(name, new HashMap<>());
            }
            if (!map.get(name).containsKey(color)) {
                map.get(name).put(color, 0L);
            }

            long current = 0;
            if (map.get(name).containsKey(color)) {
                current = map.get(name).get(color);
                if (current < physics) {
                    map.get(name).put(color, physics);
                }
            }
        }

        System.out.println();
    }
}