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- import java.util.Scanner;
- public class Main {
- public static void main(String[] args) {
- Scanner reader = new Scanner(System.in);
- System.out.println("Введите число баков:");
- int tanksCount = reader.nextInt();
- reader.close();
- int tankVolume = 500;
- double maxDistanceKm = tankVolume * getDistance(tanksCount);
- System.out.println("Максимальное расстояние, "
- + "которое можно проехать с этим числом баков: "
- + maxDistanceKm + " км");
- }
- public static double getDistance(int tanksCount) {
- double maxDistance = 0;
- if (tanksCount == 0) {
- return 0;
- }
- for (int k = 1; k <= tanksCount; k++) {
- maxDistance += 1 / (double)(2 * k - 1);
- }
- return maxDistance;
- }
- }
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