//
// Created by pengshuai on 2022年3月31日.
//

#include <iostream>
using namespace std;

class Base{
public:
 void f(){ cout<<"f()"<<endl;
 }
 void f(int n){
 cout<<"Base::f(int)"<<endl;
 }
};

class Derived : private Base {
public:
 using Base::f;
 // void f() { cout << "Derived::f()" << endl; }

 void f(int n) {
 cout<<"Derived::f(int)"<<endl;
 }
};

int main()
{
 // Base b;
 Derived d;
 d.f();
 d.f(1);
 return 0;
}