Student Grade Solver Using Pointers in C++

A simple program that I wrote using C++ to compute the student grades using functions and pointers as my data structure. The code is very simple and easy to understand I am using CodeBlocks as my text editor and Dev C++ as my C++ compiler in this sample program. Thank you.

My email address are the following jakerpomperada@gmail.com and jakerpomperada@yahoo.com.

My mobile number here in the Philippines is 09173084360.

Program Listing

#include <iostream>

#include <iomanip>

 using namespace std;

float X_Prelim=0.00, X_Midterm=0.00, X_Endterm=0.00;

 float solve_grade(float *prelim,  float *midterm, float *endterm)

 {

     float compute_grade =0.00;

     bool  result;

     compute_grade = (*prelim * 0.30) + (*midterm * 0.30)

                     + (*endterm * 0.40);

    if (compute_grade >= 75.00) {

        result = true;

    }

    else {

        result = false;

    }

    switch(result) {

     case   true : cout << "\nThe Student Passed the Subject.";

                   break;

      case   false : cout << "\nThe Student Failed the Subject.";

                     break;

      default      : cout << "Sorry Invalid Grade !!!";

    }

     return(compute_grade);

 }

 void start()

 {

     cout << "\t\t GRADE SOLVER VERSION 1.0 USING POINTERS";

     cout << "\n\n\t       Created By: Mr. Jake R. Pomperada, MAED-IT";

     cout << "\n\n";

     cout << "Enter Prelim Grade  ==> ";

     cin >> X_Prelim;

     cout << "Enter Midterm Grade ==> ";

     cin >> X_Midterm;

     cout << "Enter Endterm Grade ==> ";

     cin >> X_Endterm;

     cout << "\n";

     cout << fixed;

     cout << setprecision(2);

     cout << "\nYour Final Grade is " <<

          solve_grade(&X_Prelim,&X_Midterm,&X_Endterm) << ".";

     cout << "\n\n";

     system("PAUSE");

 }

main() {

    start();

}