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#

/*
 * 题目分析: 递归思路
 * 注意: 第5次落地时经历了多少米 和 第5次反弹多高
 */
import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        while (sc.hasNextInt()) {
            double height = sc.nextDouble();
            double total = height;
            for (int i = 0; i < 5; i++) {
                height = (double)((long)((height / 2) * 1000000)) / 1000000;
                total += height * 2;
            }
            total -= height * 2;
            System.out.println(total);
            System.out.println(height);
        }
    }
}