Годишна работа: 5.2-логистика

import java.util.Scanner;
public class main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int count = scan.nextInt();
        double busTons = 0;
        double truckTons = 0;
        double trainTons = 0;
        double price = 0;
        int allTons= 0;
        for (int i = 0; i < count; i++) {
            int tons = scan.nextInt();
            allTons+=tons;
            if (tons<=3){
                busTons+=tons;
            }else if(tons > 3 && tons<=11){
                truckTons+=tons;
            }else if(tons > 11){
                trainTons+=tons;
            }
        }
        price = (busTons*200 +truckTons*175+trainTons*120)/allTons;
        busTons = (busTons/allTons)*100;
        truckTons = (truckTons/allTons)*100;
        trainTons = (trainTons/allTons)*100;
        System.out.printf("%.2f%n",price);
        System.out.printf("%.2f%%%n",busTons);
        System.out.printf("%.2f%%%n",truckTons);
        System.out.printf("%.2f%%",trainTons);
    }
}