Offroad

package REALEXAM;

import java.util.ArrayDeque;
import java.util.Arrays;
import java.util.Deque;
import java.util.Scanner;
import java.util.stream.Collectors;

public class OffroadChallenge {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        //initialFuel ->last -> stack
        Deque<Integer> initialFuelStack = new ArrayDeque<>();
        Arrays.stream(scanner.nextLine().split("\\s+"))
                .map(Integer::parseInt).forEach(initialFuelStack::push);

        //additionalConsumption -> first
        Deque<Integer> additionalConsumptionQueue = Arrays.stream(scanner.nextLine().split("\\s+"))
                .map(Integer::parseInt).collect(Collectors.toCollection(ArrayDeque::new));
        //amountOfFuelNeeded -> firstElement
        Deque<Integer> amountOfFuelNeededQueue = Arrays.stream(scanner.nextLine().split("\\s+"))
                .map(Integer::parseInt).collect(Collectors.toCollection(ArrayDeque::new));
        int lastStack = 0;
        int firstQueue = 0;
        int resultQueue = 0;
        if (!initialFuelStack.isEmpty()) {
            lastStack = initialFuelStack.peek();
        }
        if (!additionalConsumptionQueue.isEmpty()) {
            firstQueue = additionalConsumptionQueue.peek();
        }
        if (!amountOfFuelNeededQueue.isEmpty()) {
            resultQueue = amountOfFuelNeededQueue.peek();
        }
        int subtraction = lastStack - firstQueue;
        int numberOfAltitude = amountOfFuelNeededQueue.size();
        int altitude = 0;
        while (subtraction >= resultQueue
                && !initialFuelStack.isEmpty() && !additionalConsumptionQueue.isEmpty()
                && !amountOfFuelNeededQueue.isEmpty()) {
            initialFuelStack.pop();
            additionalConsumptionQueue.poll();
            amountOfFuelNeededQueue.poll();
            altitude += 1;
            System.out.printf("John has reached: Altitude %d%n", altitude);
            if (!initialFuelStack.isEmpty() && !additionalConsumptionQueue.isEmpty()
                    && !amountOfFuelNeededQueue.isEmpty()) {
                lastStack = initialFuelStack.peek();
                firstQueue = additionalConsumptionQueue.peek();
                resultQueue = amountOfFuelNeededQueue.peek();
                subtraction = lastStack - firstQueue;
            }
        }
        if (numberOfAltitude > altitude) {
            System.out.printf("John did not reach: Altitude %d%n", altitude + 1);
        }
        if (numberOfAltitude == altitude) {
            System.out.println("John has reached all the altitudes and managed to reach the top!");
        } else if (numberOfAltitude > altitude && altitude > 0) {
            System.out.printf("John failed to reach the top.%n");
            System.out.print("Reached altitudes: ");
            for (int i = 1; i <= altitude; i++) {
                if (i < altitude) {
                    System.out.printf("Altitude %d, ", i);
                } else {
                    System.out.printf("Altitude %d", i);
                }
            }
        } else {
            System.out.println("John failed to reach the top. John didnt't reach any altitude");
        }
    }
}