C++ help

We didn't HAVE to import data for this, but I wanted to try it. This is the code I wrote without importing data.

Code:

#include <iostream>
using namespace std;
int main()
{
    char student;
    double grade;
    double femalegrades=0;
    double malegrades=0;
    int femalecount=0;
    int malecount=0;
    double femaleaverage=0;
    double maleaverage=0;

    cout<<"Enter in the gender of the student then the grade"<<endl;
    cout<<"Enter end to stop"<<endl;
    cin>>student>>grade;

    if (student == 'm')
    {
        malegrades+=grade;
        malecount++;
    }
    if (student == 'f')
    {
        femalegrades+=grade;
        femalecount++;
    }


    while (student == 'f' || student == 'm')
    {
          cin>>student>>grade;

          if (student == 'm')
          {
          malegrades+=grade;
          malecount++;
          }
          if (student == 'f')
          {
          femalegrades+=grade;
          femalecount++;
          }
    }

    maleaverage=malegrades/malecount;
    femaleaverage=femalegrades/femalecount;

    cout<<"Sum of the male grades : "<<malegrades<<endl;
    cout<<"Sum of the female grades : "<<femalegrades<<endl;
    cout<<"Male count : "<<malecount<<endl;
    cout<<"Female count : "<<femalecount<<endl;
    cout<<"Male GPA average : "<<maleaverage<<endl;
    cout<<"Female GPA average : "<<femaleaverage<<endl;

    system("pause");
    return 0;
}

runs just fine but you have to type all of the stuff manually (dunno if that's what he wanted to be honest).

and I have NO IDEA what ifstream and ofstream are lmao. I'm so noob at this ="(

This is the next assignment I'm working on now

 Spoiler

1. Write a program to display five random addition problems on the screen. Sample output:

What is the sum of 5 + 7? 12
Correct!


What is the sum of 3 +8? 11
Correct!


What is the sum of 7 + 9? 13
Sorry, the sum is 16.


What is the sum of 8 + 6? 14
Correct!


What is the sum of 9 + 8? 17
Correct!

2. Write a program to convert a temperature from Fahrenheit to Celsius (using three void functions)
#include <iostream>
#include <iomanip>
using namespace std;

//function prototypes
int main()
{
//declare variables
int fahrenheit = 0;
double celsius = 0.0;

//get input item

//calculate Celsius

//display output item

return 0;
} //end of main function

//*****function definitions*****

man I suck at functions too -_-"
What I think I'm going to do for the random addition problems is make a randomizer spit out 10 numbers, and store those 10 numbers into 10 variables. Then just do like number1+number2 = answer.

could someone explain how to call out random numbers from an array? That would definitely be useful

Edit- I'm having trouble getting my randomizer to give me different numbers. This is me playing around with my randomizer, but it's spitting out the same number for randnum1 and randnum2

Code:

#include <iostream>
using namespace std;
int random();
int main()
{
    int randnum1, randnum2;

    randnum1 =  random();
    randnum2 =  random();

    cout<<randnum1<<endl;
    cout<<randnum2<<endl;

    system("pause");
    return 0;
}

int random()
{
    int number;
    srand ( time(NULL) );
    number=(rand()%11);
    return (number);
}