OJ's daily practice -- falling and bouncing ball

Problem description ：

A ball from M Free fall at a height of meters , Return to half the original height after each landing , And then fall . It is in the first place. N How high does it bounce on the first landing ？ The first N How many meters did the first landing pass ？ Keep two decimal places .

Input
M（M<10000M<10000）、N（M<100M<100） An integer separated by two spaces

Output
It is in the first place. N How high does it bounce on the first landing ？ How many meters in total ？ After rounding , Retain 2 Decimal place , Whitespace separated , Put it in a row

Examples

Input
4 2

Output
1.00 8.00

Java Code ：

			import java.util.Scanner;

			public class Main {
    
				public static void main(String[] args) {
    
					Scanner rd = new Scanner(System.in);
					double high = rd.nextDouble();
					double n = rd.nextDouble();
					double sum = 0;
					for (int i = 1; i <= n; i++) {
    
						if (i == 1) {
    
							sum = sum + high;
						} else {
    
							sum = sum + high * 2;
						}
						high = high / 2;
					}
					System.out.printf("%.2f" + " ", high);

					System.out.printf("%.2f", sum);
				}
			}

C Code ：

#include<stdio.h>

int main(){
    
    int i,n;
	double high,sum=0.0;
	scanf("%lf %d",&high,&n);
    for(i=1;i<=n;i++){
    	 // use for（） Loop to simulate the rebound process ,
    				 	     // Don't forget the height of the rebound and the height of the final rebound 
							 // Other intermediate processes are twice the rebound height .
		if(i==1){
           	 
    		sum+=high;        // On the first landing 
		}
		else{
    
			sum+=high*2; 	 // The intermediate process is twice the rebound height .
		}
		high=high/2;        // Bounce height 
	}
	printf("%.2lf %.2lf",high,sum);

}

python Code ：

m,n=map(int,input().split())
s=m
for i in range(n):
    m=m/2
    s+=m*2
print("%.2f %.2f"%(m,s-m*2))

author ：KJ.JK
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