Grading System Using Pointers in C++

Here is another C++ program that I wrote a very long time ago using Pointers that will ask the users grade and then our program will check if the user pass or failed in a particular subject. The code is very easy to understand and use. I hope you will find my work useful. Thank you.

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Program Listing

#include <iostream>

using namespace std;

main() {

    int array[10];

    int *p;

    p = array;

    cout << "\t Grade Selector 1.0";

    cout << "\n\n";

    for (int a=0; a<10; a++)

     {

         cout << "\nEnter Grade No. " << a+1 << ":";

         cin >> p[a];

     }

     cout << "\n\n";

     cout << "\nGrade 90 To 100";

     cout << "\n";

     for (int a=0; a<10; a++)

     {

        if (p[a] >= 90 && p[a] <=100) {

        cout << "\n" <<p[a];

        }

     }

     cout << "\n\n";

     cout << "\nGrade 80 To 89";

     cout << "\n";

     for (int a=0; a<10; a++)

     {

        if (p[a] >= 80 && p[a] <=89) {

        cout << "\n" <<p[a];

        }

     }

     cout << "\n\n";

     cout << "\nGrade 75 To 79";

     cout << "\n";

     for (int a=0; a<10; a++)

     {

        if (p[a] >= 75 && p[a] <=79) {

        cout << "\n" <<p[a];

        }

     }

     cout << "\n\n";

     cout << "\nList of Failing Grades";

     cout << "\n";

     for (int a=0; a<10; a++)

     {

        if (p[a] < 75) {

        cout << "\n" <<p[a];

        }

     }

     cout << "\n\n";

     system("pause");

}