#include <iostream>
#include <fstream>
#include <string>
using namespace std;
int main()
{     double scores[50];
      double avg ;    
      double sum=scores[0],max = scores[0];
      string names[50];  
	  int count=0;
	  ifstream data;
	  data.open("in.txt");
 
	while (!data.eof()&&count<=50)
 
	{
		data>> names[count] >> scores[count] ;
					count++;
	}
 
	for (int m=1; m<count; m++)
	{
 
		sum+= scores[m];
 
 
			if (scores[m]>max)
			{
				max= scores[m];
 
			}
	}
 
	avg= sum/count;
 
	cout<<" class average is : "<<avg<<endl;
	cout<<"Students whose test scores are below the class average are :"<<endl;
 
	for (int n=0; n<count; n++)
	{
		if (scores[n]<avg)
			cout<<names[n]<<endl;
	}
 
	cout<<"Highest test score is : "<<max<<endl;
	cout<<"Students having the highest score are :"<<endl;
 
		for (int i=0; i<count; i++)
		{
			if (scores[i]==max)
			cout<<names[i]<<endl;
		}
 
      data . close ();
	return 0;
}

.....
.....
int main()
{     double scores[50];
      double avg ;    
      
      string names[50];  
	  int count=0;
	  ifstream data;
	  data.open("in.txt");

	while (!data.eof()&&count<=50)

	{
		data>> names[count] >> scores[count] ;
					count++;
	}

        double sum=scores[0],max = scores[0];

	for (int m=1; m<count; m++)
	{

		sum+= scores[m];

			
			if (scores[m]>max)
			{
				max= scores[m];
				
			}
	}
....
....