Introduction to C++ MCQ question and answer with solution | C++ Programimg MCQs

#include<iostream>
using namespace std;
class Test
{
   private:
     static int count;
   public:
     Test& fun(); 
};
int Test::count = 0;
Test& Test::fun()
{
    Test::count++;
    cout << Test::count << " ";
    return *this;
}
int main()
{
    Test t;
    t.fun().fun().fun().fun();
    return 0;
}

#include<stdio.h>
struct STRUCT
{
  int static a;
};
int main()
{
  struct STRUCT s;
  return 0;
}

#include <iostream>
using namespace std;
class Player
{
  private:
    int id;
    static int next_id;
  public:
    int getID() { return id; }
    Player()  {  id = next_id++; }
};
int Player::next_id = 1;
int main()
{
  Player p1;
  Player p2;
  Player p3;
  cout << p1.getID() << " ";
  cout << p2.getID() << " ";
  cout << p3.getID();
  return 0;
}