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()
{
    double h,dis=0;
    int n = 5;
    cin >> h;
    for(int i = 0; i < 4; i++)
    {
        dis += h; //落下来的距离
        h /= 2; //弹起距离
        dis += h; //加上
    }
    dis += h; //落下来的距离
    cout << setprecision(6) << dis << endl << setprecision(6) << h/2 << endl;
}