override_wrong.cpp

#include <iostream> 
using namespace std; 

class Base { 
public: 
  
    // user wants to override this in  
    // the derived class 
    virtual void func()  
    { 
        cout << "I am in base" << endl; 
    } 
}; 
  
class derived : public Base { 
public: 
   
    // did a silly mistake by putting  
    // an argument "int a" 
    void func(int a) override  
    { 
        cout << "I am in derived class" << endl; 
    } 
};