题解 | #计算小球走过的路程和反弹高度#

#include <ios>
#include <iostream>
#include <iomanip>
using namespace std;

int main() {

    // 下落的高度和落地的次数
    double h;
    int n;

    cin >> h;
    cin >> n;
    double l = h;
    double sum = 0;
    h = h/2;
    for (int i = 0; i < n-1; i++) {
        
       
        sum += 2*h;
        h = h/2;
    }
    cout<<fixed<<setprecision(1)<<sum+l<<" "<<h<<endl;
    


    // write your code here......


    return 0;
}