3.2

ЦЕНА ЗА ТРАНСПОРТ
import java.util.Scanner;
public class main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int km = Integer.parseInt(scan.nextLine());
        String time = scan.nextLine();
        double price = 0.0d;
        double taxi = 0;
        if (time.equals("day")) {
            taxi =  0.79;
        } else if (time.equals("night")) {
            taxi = 0.90 ;
        }
        if (km < 20) {
            price = 0.70 + (taxi * km);
        } else if (km < 100) {
            price = 0.09 * km;
        }else{
            price = km * 0.06;
        }
        System.out.println(price);
    }
}
ТРЪБИ В БАСЕЙН
import java.util.Scanner;
public class main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int v = Integer.parseInt(scan.nextLine());
        int p1 = Integer.parseInt(scan.nextLine());
        int p2 = Integer.parseInt(scan.nextLine());
        double h = Double.parseDouble(scan.nextLine())
        double water = p1 * h+p2 * h;
        if (water <= v) {
            System.out.printf(
                    "The pool is %.0f%% full. Pipe 1: %.0f%%. Pipe 2: %.0f%%.",
                    Math.floor((water / v) * 100),
                    Math.floor((p1 * h / water) * 100),
                    Math.floor((p2 * h / water) * 100)
            );
        }else{
            System.out.printf(
                    ("For %.1f hours the pool overflows with %.1f liters."),
                        h,water-v);
        }
    }
}
ПОСПАЛИВАТА КОТКА ТОМ
import java.util.Scanner;
public class main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int daysOff = Integer.parseInt(scan.nextLine());
        int workDays = 365 - daysOff;
        int playTime = daysOff*127 + workDays*63;
        int diff = Math.abs(30000 - playTime);
        double hours = diff/60;
        double minutes = diff%60;
        if(playTime>30000){
            System.out.println("Tom will run away");
            System.out.printf( "%.0f hours and %.0f minutes more for play",hours,minutes);
        }else{
            System.out.println("Tom sleeps well");
            System.out.printf( "%.0f hours and %.0f minutes less for play",hours,minutes); }
    }
}
РЕКОЛТА
import java.util.Scanner;
public class main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int areaGrapeField = Integer.parseInt(scan.nextLine());
        double  graperPerSquareMeter = Double.parseDouble(scan.nextLine());
        int wantedLitersWine = Integer.parseInt(scan.nextLine());
        int workers = Integer.parseInt(scan.nextLine());
        double  totalGrape = areaGrapeField * graperPerSquareMeter;
        double wineLiters = (0.4 * totalGrape) / 2.5;
        double difference = 0;
        double litersPerWorker = 0;
        if (wineLiters >= wantedLitersWine){
            difference = wineLiters - wantedLitersWine;
            litersPerWorker = Math.ceil(difference / workers);
            System.out.printf(
                    "Good harvest this year! Total wine: %.0f liters.%n",
                    Math.floor( wineLiters));
            System.out.printf(
                    "%.0f liters left -> %.0f liters per person.",
                    difference, litersPerWorker);
        } else {
            difference = Math.floor(wantedLitersWine - wineLiters);
            System.out.printf(
                    "It will be a tough winter! More %.0f liters wine needed.",
                    difference);
        }
    }
}
ФИРМА
import java.util.Scanner;
public class Firm {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int neededHours = Integer.parseInt(scanner.nextLine());
        int days = Integer.parseInt(scanner.nextLine());
        int workers = Integer.parseInt(scanner.nextLine());
        double workDays = days * 0.9;
        double workHours = workDays * workers * (8+2);
        double hoursDif = Math.abs(neededHours - workHours);
        if (workHours >= neededHours) {
            System.out.printf("Yes!%.0f hours left.%n", Math.floor(hoursDif));
        } else {
            System.out.printf("Not enough time!%.0f hours needed.%n", Math.floor(hoursDif));
        }
    }
}