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));
        double sum = 0;
        for(int i = 0;i<n;i++){
            sum+=h;
            h/=2;
            sum+=h;
        }
        sum-=h;
        System.out.println(String.format("%.3f", h)+" "+String.format("%.3f", sum));

    }
}

自己想一下运动过程就得出sum和h的关系了 之后就算就好了