#include <iostream> using namespace std; int main() { int num; cin >> num; double sum = 0; for (int i = 1; i <= num; i++) { sum += 1.0 / i; } printf("%.6lf", sum); return 0; }
#include <iostream> using namespace std; int main() { int num; cin >> num; double sum = 0; for (int i = 1; i <= num; i++) { sum += 1.0 / i; } printf("%.6lf", sum); return 0; }