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();

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

    }
}

每次下降的高度是上次的一半，但是经历的距离要*2