StudentRecord

#include <iostream.h>
#include <conio.h>
#include <string.h>

typedef char string50[51];
typedef char string08[9];

typedef struct
{
    string50 strName;
    string08 strID;
    float fQuiz[3];
    float fMacProb[2];
    float fFinalExam;
    float fRawScore;
    float fFinalGrade;
    float fAveQ, fAveMP;
} STUDENT_RECORD;

typedef STUDENT_RECORD CLASS_RECORD[5];

#define NAME        1
#define ID          2
#define QUIZ1       3
#define QUIZ2       4
#define QUIZ3       5
#define MP1         6
#define MP2         7
#define FE          8

void initialize(CLASS_RECORD c)
{
    int i, j;
    for (i = 0; i < 5; i++)
    {
        strcpy(c[i].strName, "");
        strcpy(c[i].strID, "");

        for (j = 0; j < 3; j++)
            c[i].fQuiz[j] = 0;
        for (j = 0; j < 3; j++)
            c[i].fMacProb[j] = 0;
        c[i].fFinalExam = 0;
        c[i].fRawScore = 0;
        c[i].fFinalGrade = 0;
    }
}

void displayOption()
{
    cout<<"\n *****************************";
    cout<<"\n [1] Add Record";
    cout<<"\n [2] View Student Record";
    cout<<"\n [3] Modify Student Record ";
    cout<<"\n [4] View Class Record";
    cout<<"\n [5] EXIT";
    cout<<"\n *****************************";
}

int searchRecord(CLASS_RECORD c, char str[], int nMode)
{
    int nIndex = -1, i = 0;
    while (i < 5 && nIndex == -1)
    {
        if (nMode == NAME && !strcmp(c[i].strName, str))
            nIndex = i;
        else if (nMode == ID && !strcmp (c[i].strID, str))
            nIndex = i;
        i++;
    }
    return nIndex;
}

void viewStudentRecord(CLASS_RECORD c, int n)
{
    int i;
    cout << "\n*****STUDENT RECORD#" << n+1 << "*****\n";
    cout << c[n].strName;
    cout << c[n].strID;

    for (i = 0; i < 3; i++)
        cout << "\n*****QUIZ#"<< i+1 ":" <<c[n].fQuiz[i];
    for (i = 0; i < 2; i++)
        cout << "\n*****MACHINE PROBLEM#"<< i+1 ":" <<c[n].fMacProb[i];
    cout << "\n*****FINAL EXAM:" << c[n].fFINALExam;
    cout << "\n*****RAW SCORE:" << c[n].fRawScore;
    cout << "\n*****FINAL GRADE: "<<c[n].fFinalGrade << "\n";
}

void addRecord(CLASS_RECORD c, int *n)
{
    cout << "*****ADD RECORD*****\n";
    cout << "STUDENT NAME:";
    cin>> c[*n].strName;
    cout << " STUDENT ID: ";
    cin >> c[*n].strID;

    *n = *n+1;
}

void displayOptionInput()
{
    cout << "\n****************************************\n";
    cout << "\n [1] Enter New Student Name ";
    cout << "\n [2] Enter New Student ID ";
    cout << "\n [3] Enter Quiz#1 ";
    cout << "\n [4] Enter Quiz#2 ";
    cout << "\n [5] Enter Quiz#3 ";
    cout << "\n [6] Enter Machine Problem#1 ";
    cout << "\n [7] Enter Machine Problem#2 ";
    cout << "\n [8] Enter Final Exam ";
    cout << "\n [9] Enter DISPLAY ";
    cout << "\n [10] EXIT ";
    cout << "\n****************************************\n";
}

void computeAveQ(CLASS_RECORD c, int n)
{
    int i;
    c[n].fAveQ = 0;
    for (i = 0; i < 3; i++)
        c[n].fAveQ += c[n].fQuiz[i];
    c[n].fAveQ /= 3;
}

void computeAveMP(CLASS_RECORD c, int n)
{
    int i;
    c[n].fAveMP = 0;
    for ( i = 0; i < 2; i++)
        c[n].fAveMP += c[n].fMacProb[i];
    c[n].fAveMP /= 2;
}

void computeRawScore(CLASS_RECORD c, int n)
{
    c[n].fRawScore = (c[n].fAveQ + c[n].fAveMP + c[n].fFinalExam) / 3;
}

void computeFinalGrade(CLASS_RECORD c, int x)
{
    if (c[x].fRawScore >= 94)
        c[x].fFinalGrade = 1.00;
}

void modifyRecord(CLASS_RECORD c, int n)
{
    int mode, num;
    num = n + 1;
    cout << " You are going to modify record #" <<num;
    viewStudentRecord (c, n);
    do {
        displayOptionInput();
        cout << "******************\n";
        cout << "ENTER YOUR OPTION: ";
        cin >> mode ;
        cout << "******************\n";
        switch (mode)
        {
            case NAME:
            {
                cout << "NEW NAME: ";
                cin >> c[n].strName;
                break;
            }
            case ID:
            {
                cout << "NEW ID: ";
                cin >> c[n].strID;
                break;
            }
            case QUIZ1:
            {
                cout << "NEW Quiz#1: ";
                cin >> c[n].fQuiz[0];
                break;
            }
            case QUIZ2:
            {
                cout << "NEW Quiz#2: ";
                cin >> c[n].fQuiz[1];
                break;
            }
            case QUIZ3:
            {
                cout << "NEW Quiz#3: ";
                cin >> c[n].fQuiz[2];
                break;
            }
            case MP1:
            {
                cout << "NEW MP1:";
                cin >> c[n].fMacProb[0];
                break;
            }
            case MP2:
            {
                cout << "NEW MP2: ";
                cin >> c[n].fMacProb[1];
                break;
            }
            case FE:
            {
                cout << "NEW FE:";
                cin >> c[n].fFinalExam;
                break;
            }
            case 9:
            {
                viewStudentRecord(c, n);
                break;
            }
        }
        computeAveQ(c, n);
        computeAveQ(c, n);
        computeRawScore(c, n);
        computeFinalGrade(c, n);
    } while (mode != 10);
}

void chooseNameOrID(string50 *str, int *nMode)
{
    cout << "[1] Student Name\n";
    cout << "[2] Student Id\n";
    cout << "Choose: ";
    cin >> *nMode;

    if (*nMode == NAME)
        cout << "STUDENT NAME: ";
    else if (*nMode == ID)
        cout << "STUDENT ID: ";
    cin >> *str;
}

void viewClassRecord(CLASS_RECORD c)
{
    int nInterval = 1, i, nStart = 0, bValid = 1, y;
    char ch = '\0';

    do
    {
        bvalid = 1 ;
        cout << "Enter [P]rev, [N]ext or [Q]uit: ";
        cin >> ch;
        if ( ch == 'P' || ch == 'p')
        {
            for (i = 0; i < nInterval; i++)
            {
                if (nStart == 0)
                    nStart = 4;
                else
                    nStart --;
            }
        }
        if (ch == 'N' || ch == 'n')
        {
            nStart  = (nStart + nInterval);
            i++;
        }
        if (bValid)
        {
            for (i = 0; i nInterval; i++)
            {
                y = (nStart + 1) & 5;
                viewStudentRecord(c, y);
            }
        }
  } while (ch != 'Q' && ch != 'q');
}

void main()
{
    clrscr();
    CLASS_RECORD classRec;
    string50 string;
    int mode, numRec, choice, index;
    intialize(classRec);
    strcpy (string , "");
    numRec = 0;
    do
    {
        displayOption();
        cout << "**************\n";
        cout << "OPTION: ";
        cin >> choice;
        cout << "**************\n";
        switch (choice)
        {
            case 1:
            {
                addRecord(classRec, &numRec);
                cout << "NUM REC" << numRec;
                break;
            }
            case 2:
            {
                chooseNameOrID(&string, &mode);
                index = searchRecord (classRec, string, mode);
                viewStudentRecord (classRec, index);
                break;
            }
            case 3:
            {
                chooseNameOrID(&string, &mode);
                index = searchRecord(classRec, string, mode);
                modifyRecord (classRec, index);
                break;
            }
            case 4:
            {
                viewClassRecord(classRec);
                break;
            }
        }
    } while (choice != 5);
}