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......
        

        //输出格式为：System.out.println(String.format("%.3f", h)+" "+String.format("%.3f", sum));
        
        float height = h;
        float sum = 0f;
        for(int i = 0; i < n - 1; i++){
            sum = sum + height + height / 2;
            height /= 2;
        }
        sum = sum + height;
        height /= 2;

        System.out.println(String.format("%.3f", height)+" "+String.format("%.3f", sum));

    }
}