13. Dragon Army

package Uprajnenie;

import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Scanner;
import java.util.TreeMap;

public class DragonArmy {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);


        // Read the number of dragons
        int N = Integer.parseInt(scanner.nextLine());

        // Initialize a map to store dragons by type
        Map<String, Map<String, int[]>> dragonsByType = new LinkedHashMap<>();

        // Process input for each dragon
        for (int i = 0; i < N; i++) {
            String[] dragonData = scanner.nextLine().split("\\s+");
            String type = dragonData[0];
            String name = dragonData[1];
            int damage = dragonData[2].equals("null") ? 45 : Integer.parseInt(dragonData[2]);
            int health = dragonData[3].equals("null") ? 250 : Integer.parseInt(dragonData[3]);
            int armor = dragonData[4].equals("null") ? 10 : Integer.parseInt(dragonData[4]);

            // Add or update the dragon's stats for the given type
            dragonsByType.computeIfAbsent(type, k -> new TreeMap<>())
                    .put(name, new int[]{damage, health, armor});
        }

        // Print aggregated data for each dragon type
        dragonsByType.forEach((type, dragons) -> {
            // Calculate average stats
            double avgDamage = dragons.values().stream().mapToInt(d -> d[0]).average().orElse(0);
            double avgHealth = dragons.values().stream().mapToInt(d -> d[1]).average().orElse(0);
            double avgArmor = dragons.values().stream().mapToInt(d -> d[2]).average().orElse(0);

            // Print type and average stats
            System.out.printf("%s::(%.2f/%.2f/%.2f)%n", type, avgDamage, avgHealth, avgArmor);

            // Print individual dragon stats
            dragons.forEach((name, stats) -> {
                System.out.printf("-%s -> damage: %d, health: %d, armor: %d%n",
                        name, stats[0], stats[1], stats[2]);
            });
        });
    }
}