题解 | #求小球落地5次后所经历的路程和第5次反弹的高度#

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

int main(int argc, char* argv[]){
    int n;
    cin >> n;

    double length = double(n);
    double height = double(n);
    for(int i = 1; i <= 5; ++i){
        height /= 2;
        length += 2*height;
    }
    length -= 2*height;
    cout << setprecision(6) << length << endl;
    cout << setprecision(6) << height << endl;

    return 0;
}