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 distance = 0;
    int i;

    cin >> h;
    cin >> n;

    // write your code here......
    for (i = 0; i < n; i++) {
        h /= 2;
        distance += h * 3;
    }
    distance = distance - h;

    cout << fixed << setprecision(1) << distance << " " << h << endl;

    return 0;
}