题解 | #小球走过路程计算#

import java.util.Scanner;

public class Main { public static void main(String[] args) { Scanner scanner=new Scanner(System.in); float h=scanner.nextFloat(); int n =scanner.nextInt();

    //write your code here......
    double sum = h;
    for(int i = 1; i<=n ; i++)
    {
        h = h/2;
        sum = sum + 2*h; 
    }
    System.out.printf("%.3f %.3f\n",h,sum-2*h);
    //输出格式为：System.out.println(String.format("%.3f", h)+" "+String.format("%.3f", sum));
}

}