Assume you have a file called studentstxt that contains grad

Assume you have a file called \"students.txt\" that contains grades of 500 students, write C++ program to read these grades and display the averages and how many students fail (the failing grade is less than 60).

Solution

#include<cmath>

#include<iostream.h>

#include<iomanip.h>

#include<string.h>

int main()

{

double average,count,n;char name[50];int fail=0;

ifstream input;

input.open(students.txt);

if(input.is_open())

{

while(input.good())

{

do(!input.eof())

{

input>>n;

total=total+n;

count+++;

if(total<60)

{

fail++;

}

}

average=total/count;

count<<\"average\"<<\"fail\"<<endl;

}

input.close();

}

return 0;

getch();

}