题解 | 求小球落地5次后所经历的路程和第5次反弹的高度

import java.util.Scanner;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        // 注意 hasNext 和 hasNextLine 的区别
        while (in.hasNext()) { // 注意 while 处理多个 case
            // int a = in.nextInt();
            // int b = in.nextInt();
            // System.out.println(a + b);
            double h = in.nextLong();
            double perH = h/2;
            double total = h;
            for (int i = 1;i<5;i++) {
                total += perH * 2;
                perH /= 2;
                // System.out.println(total + " " + perH);
            }
            System.out.println(total);
            System.out.println(perH);
        }
    }
}