5.2

ХИСТОГРАМА
import java.util.Scanner;
public class main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int n = scan.nextInt();
        double p1 = 0;
        double p2 = 0;
        double p3 = 0;
        double p4 = 0;
        double p5 = 0;
        for (int  i = 0;  i < n;  i++) {
            int num = scan.nextInt();
            if (num < 200){
                p1++;
            }else if (num>=200 && num<400){
                p2++;
            }else if (num>=400 && num<600){
                p3++;
            }else if (num>=600 && num<800){
                p4++;
            }else if (num>=800){
                p5++;
            }
        }
        p1 = (p1/n)*100;
        p2 = (p2/n)*100;
        p3 = (p3/n)*100;
        p4 = (p4/n)*100;
        p5 = (p5/n)*100;
        System.out.printf("%.2f%%%n%.2f%%%n%.2f%%%n%.2f%%%n%.2f%%%n",p1,p2,p3,p4,p5);
    }
}
УМНАТА ЛИЛИ
import java.util.Scanner;
public class main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int years = scan.nextInt();
        double priceMachine = scan.nextDouble();
        int toyPrice = scan.nextInt();
       // int toys = 0;
        int savedMoney = 0;
        int birthdayMoney = 10;
        for (int i = 1; i <= years; i++) {
            if (i % 2 == 0) {
               savedMoney += (birthdayMoney-1);
               birthdayMoney+=10;
            }else if (i%2==1){
               savedMoney+=toyPrice;
            }
        }
        if (savedMoney >= priceMachine){
            System.out.printf("Yes! %.2f",savedMoney - priceMachine);
        }else{
            System.out.printf("No! %.2f",priceMachine-savedMoney);
        }
    }
}
ЗАВРЪЩАНЕ В МИНАЛОТО
import java.util.Scanner;
public class main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        double money = scan.nextDouble();
        int year = scan.nextInt();
        int StartYear = 1800;
        int age = 18;
        for (StartYear = 1800; StartYear <= year; StartYear++) {
            if (StartYear % 2 == 0) {
                money -= 12000;
            }
            else {
                money = money-(12000 + 50 * age);
            }
            age++;
        }
        if(money>=0) {
            System.out.printf("Yes! He will live a carefree life and will have %.2f dollars left.",money);
        }else {
            money =Math.abs(money);
            System.out.printf("He will need %.2f dollars to survive.",money);
        }
    }
}
БОЛНИЦА
import java.util.Scanner;
public class main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int days = scan.nextInt();
        int treated = 0;
        int untreated = 0;
        int doctors = 7;
        for (int i = 1; i <= days; i++) {
            int patients = scan.nextInt();
            if (i%3==0 && (untreated>treated)){
                doctors++;
            }
            if (patients>doctors){
                treated+=doctors;
                untreated += patients-doctors;
            }else {
                treated += patients;
            }
        }
        System.out.println("Treated patients: "+treated+".");
        System.out.println("Untreated patients: "+untreated+".");
    }
}
ДЕЛЕНИЕ БЕЗ ОСТАТЪК
import java.util.Scanner;

public class main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int n = scan.nextInt();
        double p1 = 0;
        double p2 = 0;
        double p3 = 0;
        for (int i = 0; i < n ; i++) {
            int num = scan.nextInt();
            if(num%2 == 0){
                p1++;
            }
            if(num%3 == 0){
                p2++;
            }
            if(num%4 == 0){
                p3++;
            }
        }
        p1 = (p1/n)*100;
        p2 = (p2/n)*100;
        p3 = (p3/n)*100;
        System.out.printf("%.2f%% %n",p1);
        System.out.printf("%.2f%% %n",p2);
        System.out.printf("%.2f%% %n",p3);
    }
}
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);
    }
}