Help with school assignment

/****Driver for quiz program. ****/

#include<iostream.h>
using namespace std;

#include "game.h"

void rnd_1();
void rnd_2(question &);

void main()
{

	rnd_1();
}



void rnd_1()
{
	question quiz;


	cout << "round 1 \n";

	for ( int i =0; i < quiz.get_quest_num(); i++)
	{
		quiz.display_question();
		quiz.process_rdn1();
	}

	quiz.display_score();
	if (get_ans_cor() == get_quest_num())
	
	{
		cout << " You got everythin right in first round \n";
		exit(1);
	}
	
	else
		rnd_2(quiz);
}

void rnd_2( question & quiz2)
{
	cout << "round 2 \n";

	for ( int i =0; i < quiz2.get_ans_wrg(); i++)
	{
		quiz2.display_wrg();
		quiz2.process_rdn2();
	}

	quiz2.display_score();
	cout << "Thank you for playing \n";
	exit(1);
}//end of driver

/***Game.cpp ----------------
              This file implements Game member functions.
              					
              																****/ 

#include <iostream>
using namespace std;

#include "game.h"


question::question() // default constructor
{
	ifstream in;
	string filename;


	quest_num = 0;
	ans_cor = 0;
	ans_wrg = 0;


	cout <<"Enter file name";
	cin >> filename;

	in.open(filename.c_str());

	assert(in.open());

	while(!in.eof())
	{

		getline(in, q_sub.quest);
		getline(in, q_sub.ans1);
		getline(in, q_sub.ans2);
		getline(in, q_sub.ans3);
		getline(in, q_sub.ans4);
		getline(in, q_sub.answer);
		rdone.enqueue(q_sub); //enque all question submitted	

		quest_num++;          // increase questions read from file
	}
}


void question::display_question()
{
	x_file q_disp = rdone.front();

	cout << q_disp.quest <<endl;
	cout << q_disp.ans1 <<endl;
	cout << q_disp.ans2 <<endl;
	cout << q_disp.ans3 <<endl;
	cout << q_disp.ans4 <<endl;

}

void question::process_rdn1()
{
	string ans;
	x_file q_disp = rdone.front();

	cout <<"Give your answer";
	cin >> ans;

	if ( ans == q_disp.answer)
	{
		cout<<"correct answer\n";
		ans_cor++;
		rdone.dequeue();
	}
	else
	{
		cout <<"Incorrect answer\n";
		ans_wrg++;
		rdtwo.enqueue(q_disp);
		rdone.dequeue();

	}
}


void question::display_wrg()
{
	x_file q_disp = rdtwo.front();

	cout << q_disp.quest <<endl;
	cout << q_disp.ans1 <<endl;
	cout << q_disp.ans2 <<endl;
	cout << q_disp.ans3 <<endl;
	cout << q_disp.ans4 <<endl;

}

void question::process_rdn2()
{
	string ans;
	x_file q_disp = rdtwo.front();

	cout <<"Give your answer";
	cin >> ans;

	if ( ans == q_disp.answer)
	{
		cout<<"correct answer\n";
		ans_cor++;
		ans_wrg--;
		rdtwo.dequeue();
	}
	else
	{
		cout <<"Incorrect answer\n";
		cout<<"The correct answer is "<< q_disp.answer<<endl;
		rdtwo.dequeue();

	}
}

void question::display_score()
{

	cout <<"Your total correct answer: "<< ans_cor << endl;
	cout <<"Your total incorrect answer: "<<ans_wrg; <<endl;
	cout <<" Your Score is "<< ans_cor << quest_num <<endl; // need type casting to double
}


int question::get_quest_num()
{
	return quest_num;
}

int question::get_ans_cor()
{
	return ans_cor;
}

int question::get_ans_wrg()
{
	return ans_wrg;
} //end of game.cpp

#include <iostream.h>
#include <string>
#include <fstream.h>
#include <assert.h>

#include "Queue.h"

#ifndef game
#define game

struct x_file
{
	string quest;
	string ans1;
	string ans2;
	string ans3;
	string ans4;
	string answer;
}; // end of struct

class Question
{

public:

	//--Constructors
	Question();
	
	//--Mutators
		void process_rdn1();
	void process_rdn2();
	
	//--Output
	void display_score();
	void display_wrg()
	void display_question();
	
	//--Accessors
	int get_quest_num();
	int get_ans_cor();
	int get_ans_wrg();

private:
	x_file q_sub; //struct from file

	queue<x_file> rdone; //initial questions
	queue<x_file> rdtwo; // incorrect question

	int ques_num;
	int ans_cor;
	int ans_wrg;

};  //end of class

#endif