python/TangDou/LianXiTi50/10.cpp

#include <iostream>

using namespace std;

int main() {
    double n = 100, s = 0;
    for (int i = 1; i <= 10; ++i) {
        s += n + n / 2;
        n /= 2;
    }
    s -= n;
    printf("%lf\n%lf", s, n);
    return 0;
}