C :

#include<stdio.h>
int main(){
int n;
int i;
double sum=100.0,high=100.0;
scanf("%d",&n);
for(i=1;i<n;i++){
  high=high/2;
  sum+=high*2;
}
high=high/2;
printf("%.4lf %.4lf\n",sum,high);
return 0;
}

C++ :

#include <stdio.h>
int main() {
	int i, n;
	float h, tot;
	h = 100;
	tot = 0;
	scanf("%d", &n);
	/* 模拟前n-1次反弹的过程 */
	for (i = 1;i < n;i++) {
		tot += h;
		h = h / 2;
		tot += h;
	}
	/* 模拟第n次反弹的过程 */
	tot += h;
	h = h / 2;
	printf("%.4f %.4f\n", tot, h);
	return 0;
}

Pascal :

var 
  i,n:longint;
  sum,s:double;
begin
  readln(n);
  sum:=0; s:=100;
  for i:=1 to n do begin
    sum:=sum+s;
    s:=s/2;
    sum:=sum+s;
  end;
  writeln(sum-s:0:4,' ',s:0:4);
end.

Java :

import java.util.*;
public class Main {
    public static void main(String args[]) {
        Scanner cin=new Scanner(System.in);
        int n=cin.nextInt();
        double[] len=new double[100];
        len[0]=100;
        for(int i=1;i<=n;i++)
            len[i]=len[i-1]/2.0;
        double sum=100;
        for(int i=2;i<=n;i++){
            sum+=len[i-2];
        }
        System.out.printf("%.4f %.4f\n",sum,len[n]);
    }
}

Python :

n =input()
s = 100
a = 0
for i in range(1, n + 1):
    s += a
    a = 100 / 2 ** (i - 1.0)
print "%.4f %.4f" % (s, a / 2)