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>

using std::cout;
using std::cin;
using std::endl;

double hs[10];

int main() {
    double h;
    cin >> h;
    hs[0] = h;
    for (int i = 1; i <= 5; ++i) {
        hs[i] = hs[i - 1] / 2;
    }
    double res = 0;
    res += hs[0];
    for (int i = 1; i <= 4; ++i)
        res += 2 * hs[i];
    cout << res << endl;
    cout << hs[5] << endl;

    return 0;
}