题解 | #计算小球走过的路程和反弹高度#

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

int main() {

    // 下落的高度和落地的次数
    double h;
    int n;
    double sumh = 0;
    double count = 0;

    cin >> h;
    cin >> n;
    count = h;

    // write your code here......
    for (int i = 1; i <= n; i++) 
    {
        sumh += h;
        h=h/2;
    }
    sumh = sumh-count;
    sumh = sumh*2 + count;
    cout<<fixed<<setprecision(1)<<sumh<<" "<<setprecision(1)<<h<<endl;


    return 0;
}