Programming Technique I

Course Content

• Chapter 1: Programming Problem-Solving
• Chapter 2: Elementary Programming
• Chapter 3: Control Structures
• Chapter 4: Functions
• Chapter 5: Array
• Chapter 6: Input and Output
• Chapter 7: Pointers
• Chapter 8: Structured Data

Assignment 1

• Solving problems by planning and creating a flowchart.

Assignment 2

• Develop the programs by implementing the flowchart.

BMR Calculator

#include <iostream>
using namespace std;

int main () {
	
	//defined variables
	char g, ans; //g=gender
	int age;
	float w, h; //w=weight, h=height
	float BMR, BMI;
	
	//input
	cout << "Enter gender (M or F): ";
	cin >> g;
	cout << "Enter age: ";
	cin >> age;
	cout << "Enter weight: ";
	cin >> w;
	cout << "Enter height: ";
	cin >> h;
	
	//callculate BMR 
	if (g=='M')
		BMR = (10 * w) + (6.25 * h) - (5 * age) + 5;
	else
		BMR = (10 * w) + (6.25 * h) - (5 * age) - 161;
		
	//display BMR
	cout << BMR << endl;
	
	//loop for calculating BMI
	cout << "Do you want to calculate your BMI? (Y or N)" << endl;
	cin >> ans;
	
	while (ans=='Y'){
		BMI = w /(h * h);
		cout << BMI << endl;
		cout << "Do you want to calculate your BMI? (Y or N)" << endl;
		cin >> ans;
	}
}

Monthly Installment Calculator

#include <iostream>
using namespace std ;

int main()
{
	cout << "MONTHLY INSTALLMENT CALCULATOR" << endl ;
	
	int period;
	double income, carPrice, downPay, rate;
	
	//input all informations
	cout << "\nEnter your income(month): RM" ;
	cin >> income ;
	cout << "\nEnter car price : RM" ;
	cin >> carPrice ;
	cout << "Enter down payment (RM) : " ;
	cin >> downPay ;
	cout << "Enter loan period (years) : " ;
	cin >> period ;
	cout << "Enter rate (%): " ;
	cin >> rate ;
	
	//calculate monthly installment
	double totalInter, loanAmount, monthInter, monthInstall;
	loanAmount = carPrice - downPay ;
	totalInter = (rate/100) * loanAmount * period ;
	monthInter = totalInter / (period*12);
	monthInstall = (loanAmount+totalInter) / (period*12) ;
	
	cout << "\nMONTHLY INSTALLMENT : RM" << monthInstall << endl;
	
	
	double extraIncome;                
	char extra; 
	
	//ask extra income
	cout << "\nDo you have extra income? [y or n] : " ;
	cin >> extra ;
	
	if (extra == 'y'){
		cout << "Enter extra income(month) : RM" ;
		cin >> extraIncome;
	}
	else {
		extraIncome = 0 ;
	}
	
	if ((income+extraIncome) > monthInstall){
			cout << "Your budget is sufficient" << endl;
		}
	else{
			cout << "Your budget is not enough" << endl;
		}

	return 0;
}

Program to find multiple of 3, 4 and 5

//Programmer:Nawwarah Auni binti Nazrudin
//Matric number: A23CS0143
//Date: 5/11/2023

#include <iostream>
using namespace std;

int main() {
	
	//define variables
	int oriNum, sum, newNum;
	sum = 0;
	
	//input
	cout << "Enter an integer number: "; 
	cin >> oriNum; 
	
	//post-test loop
	//to find sum
	do{	
		newNum = oriNum % 10;
		sum += newNum; 
		oriNum /= 10;	
		// output sum
			if (oriNum != 0) 
			cout << newNum << " + ";
		else 
			cout << newNum << " = " << sum << endl; 
	}	
	while (oriNum != 0);
	
	//to identify whether the sum is multiple of 3,4 or 5 and display messages
	if (sum % 3 == 0 && sum % 4 == 0 && sum % 5 == 0) 
		cout << sum << " is multiples of 3,4 and 5" << endl;
	else if (sum % 3 == 0 && sum % 5 == 0) 
		cout << sum << " is multiples of 3 and 5" << endl;
	else if (sum % 3 == 0 && sum % 4 == 0 ) 
		cout << sum << " is multiples of 3 and 4" << endl;
	else if (sum % 4 == 0 && sum % 5 == 0 ) 
		cout << sum << " is multiples of 4 and 5" << endl;
	else if (sum % 3 == 0) 
		cout << sum << " is multiples of 3" << endl;
	else if (sum % 4 == 0)
		cout << sum << " is multiples of 4" << endl;
	else if (sum % 5 == 0) 
		cout << sum << " is multiples of 5" << endl;
	else  
		cout << sum << " is not multiples of 3, 4 and 5" << endl;		
}

Program to find multiple of 3, 4 and 5

//Programmer: Nawwarah Auni binti Nazrudin
//Matric number: A23CS0143
//Date: 5/11/2023

#include <iostream>
using namespace std;

int main() {
	
	//define variables
	int oriNum, product, newNum;
	product = 1;
	
	//input
	cout << "Enter an integer number: "; 
	cin >> oriNum; 
	
	//pre-test loop
	//to find product
	while (oriNum != 0){	
		newNum = oriNum % 10;
		product *= newNum; 
		oriNum /= 10;	
		// output product 
			if (oriNum != 0) 
			cout << newNum << " * ";
		else 
			cout << newNum << " = " << product << endl; 
	}	
	
	//to identify whether the product is multiple of 4,5 or 7 and display messages
	if (product % 4 == 0 && product % 5 == 0 && product % 7 == 0) 
		cout << product << " is multiples of 4, 5 and 7" << endl;
	else if (product % 4 == 0 && product % 5 == 0) 
		cout << product << " is multiples of 4 and 5" << endl;
	else if (product % 7 == 0 && product % 4 == 0 ) 
		cout << product << " is multiples of 7 and 4" << endl;
	else if (product % 7 == 0 && product % 5 == 0 ) 
		cout << product << " is multiples of 7 and 5" << endl;
	else if (product % 4 == 0) 
		cout << product << " is multiples of 4" << endl;
	else if (product % 5 == 0)
		cout << product << " is multiples of 5" << endl;
	else if (product % 7 == 0) 
		cout << product << " is multiples of 7" << endl;
	else  
		cout << product << " is not multiples of 4, 5 and 7" << endl;
		
}

COVID 19 Statistic Analyzer

//Programmer:Nawwarah Auni binti Nazrudin
//Matric number:A23CS0143
//Date:17/12/2023
//Purpose:to determine and display active case, status, total active cases, highest, highest state and average from state name, total cases, new cases, total death and total recovered

#include <iostream>
#include <string>
using namespace std;

//Function prototype
void getInput(int &,int &, int &, int &);
void dispOutput(int);
void dispStatus(int);
int calcAverage (int, int);

int main(){
	//declare variable
	string state, highestState; 
	int activeCases, totalCases, newCases, totalDeath, totalRecovered;
	int numStates=0, totalActiveCases=0, highest=-999;
		
	do{	
		//data 
		cout << "\n<<<<<<<<<<<<<< DATA >>>>>>>>>>>>>" << endl;
		cout << "State name: ";
		getline(cin, state);
		//function call task 2
		getInput(totalCases, newCases, totalDeath, totalRecovered);
		
		//summary
		cout << "\n<<<<<<<<<<<<< SUMMARY >>>>>>>>>>>" << endl;
		activeCases = totalCases + newCases - totalDeath - totalRecovered;
		cout << "Active cases: " << activeCases << endl;
		//Function call task 3
		dispOutput (activeCases);
		
		//to determine highest case and highest state
		if (activeCases > highest){
			highest = activeCases;
			highestState = state;
		}
		
		totalActiveCases = totalActiveCases + activeCases;
		numStates = numStates + 1;
		
		//input to continue
		cin.ignore();
		cout << "\n\nPress  to continue...";
		
	} while(cin.get() == '\n');
	
	//active cases
	cout << "\n<<<<<<<<< ACTIVE CASES >>>>>>>>>>" << endl;
	cout << "Total: " << totalActiveCases << endl;
	cout << "Highest: " << highest << " (" << highestState << ")" << endl;
	//display and function call task 4
	cout << "Average for " << numStates << " states: " << calcAverage(totalActiveCases, numStates);
	
	return 0;
}

//task 2 - reference variable
//Purpose: to get input of totalCases, newCases, totalDeath, totalRecovered
void getInput (int &a, int &b, int &c, int &d){
	cout << "Total cases: ";
	cin >> a;
	cout << "New cases: ";
	cin >> b;
	cout << "Total death: ";
	cin >> c;
	cout << "Total recovered: ";
	cin >> d;
}

//task 3
//Purpose: to call task 1 and display status based on activeCases
void dispOutput(int m){
	//Function call task 1
	dispStatus(m);
}

//task 1 
//Purpose: to determine and display status based on activeCases
void dispStatus(int n){
	if (n > 40) 
		cout << "Status: Red zone";    
	else if (n >= 21 && n <= 40) 
		cout << "Status: Orange zone";
	else if (n >= 1 && n <= 20) 
		cout << "Status: Yellow zone";
	else if (n == 0) 
		cout << "Status: Green zone";
}

//task 4
//Purpose: To calculate average based on total active cases and number of states entered
int calcAverage(int x,int y){
	int ave = x/y;
	return ave;
}

Temperature Converter and Analyzer

//Programmer: Nawwarah Auni binti Nazrudin
//Matric Number: A23CS0143
//Date: 31/12/2023

#include 
#include 
#include 
using namespace std;

//function prototype
void readFile(ifstream&, float[], int&);
void computeC(float[], float[], int);
float average(float[], int);
char grade(char[], float[], int, int[]);
void writeFile(ofstream&, float[], float[], int, char[]);

int main()
{
	const int SIZE = 8;
	float F[SIZE];
	float C[SIZE];
	char G[SIZE];
	
	int count[3] = {0};
	int numData = 0;
	
	ifstream in;
	in.open("inputFile.txt");
	ofstream out;
	out.open("outputFile.txt");
	
	//Function call 1 - read data and store in array
	readFile (in, F, numData);

	//Function call 2 - computes the values of C
	computeC (F, C, numData);
	
	//Printing summary
	cout << "Average of the temperature in Celcius: " << fixed << setprecision(1) 
	//Function 3 - computes the average of a list of numbers stored in an array
	<< average (C, numData) << endl;
	//Function 4 - determines whether the temperature (C) is high or medium or low
	grade(G, C, numData, count);
	cout << "Number of high temperature: " << count[0] << endl;
	cout << "Number of medium temperature: " << count[1] << endl;
	cout << "Number of low temperature: " << count[2] << endl;
	
	//Function call 5 - prints the output file 
	writeFile (out, F, C, numData, G);
}

//Function 1 - This function reads in a list of numbers from a text file and stores them into a one dimensional array.
void readFile (ifstream& inF, float f[], int& x)
{
	float num;
	
	//Check if file exist
	if(!inF.is_open())
	{
		cout << "File could not be opened" << endl;
	}
	
	//copying data from file into array
	while (!inF.eof())
	{
		for(int i = 0; i < 8; i++)
		{
			inF >> num;
			f[i] = num;
			x = x + 1;
		}
	}
}

//Function 2 - This function computes the values of C
void computeC (float F[], float C[],int x)
{
	for (int i = 0; i < x; i++)
	{
		C[i] = (5.0 / 9.0) * (F[i] - 32);
	}
}

//Function 3 - This function computes the average of a list of numbers stored in an array
float average (float C[], int x) 
{
	float sum = 0;
	for (int i = 0; i < x; i++)
		sum += C[i];
		
	float ave  = sum / x;
	return ave;
}

//Function 4 - This function determines either temperature (C) is high or medium or low. 
char grade (char G[], float C[], int x, int count[])
{
	for (int i = 0; i < x; i++)
	{
		if (C[i] >= 35)
		{	
			G[i] = 'H';
			count[0]++;
		}
		else if (C[i] >= 20)
		{
			G[i] = 'M';
			count[1]++;
		}
		else
		{
			G[i] = 'L';
			count[2]++;
		}
	}
}

//Function 5 - This function prints the output file as in Figure 7.
void writeFile (ofstream& outF, float F[], float C[], int x, char G[])
{ 
	if(!outF.is_open())
	{
		cout << "File could not be opened" << endl;
	}

	outF << setw (14) << "C(Celcius)" << setw(16) << "F(Farenheit)" << setw(15) << "Description" << endl;
	outF << setw (14) << "==========" << setw(16) << "============" << setw(15) << "===========" << endl;
	
	for (int i = 0; i < x; i++)
	{
		outF << fixed << setprecision(2);
		outF << setw(11) << C[i] << setw(16) << F[i] << setw(13) << G[i] << endl;
	}
	
	outF.close();
}

Cereal Nutrition Analyzer

#include <iostream>
#include <fstream>
#include <cctype>
#include <iomanip>
#include <string>
#include <sstream>
using namespace std;


struct fooddata{

	string cerealtype2;
	string cerealtype1;
	double carbohydrate;
	double protein;
	double fat;

};

void inputFile(fooddata foodData, string cerealType1[], string cerealType2[], double carbohydrateW[], double proteinW[], double fatW[]){
	
	ifstream input("cerealData.txt");
	if(!input.is_open())
	cout << "im confused uhh" << endl;

	for(int i = 0; i < 10; i++){
		
		input >> foodData.cerealtype1 >> foodData.cerealtype2 >> foodData.carbohydrate >> foodData.protein >> foodData.fat;
		cerealType1[i] = foodData.cerealtype1;
		cerealType2[i] = foodData.cerealtype2;
		carbohydrateW[i] = foodData.carbohydrate;
		proteinW[i] = foodData.protein;
		fatW[i] = foodData.fat;

	}
	input.close();
}

void calconvert(double carbohydrateW[], double proteinW[], double fatW[], double carbohydrateG[], double proteinG[], double fatG[]){
	for (int i = 0; i < 10; i++){

		carbohydrateG[i] = carbohydrateW[i] * 28.35;
		proteinG[i] = proteinW[i] * 28.35;
		fatG[i] = fatW[i] * 28.35;

	}
}

void calDV(double carbohydrateG[], double proteinG[], double fatG[], double carboDV[], double proteinDV[], double fatDV[]){

	for(int i = 0; i < 10; i++){

		carboDV[i] = (carbohydrateG[i]/300.00) * 100.00;
		proteinDV[i] = (proteinG[i]/50.00) * 100.00;
		fatDV[i] = (fatG[i]/65.00) * 100.00;
	}

}

void category(double carboDV[], double proteinDV[], double fatDV[], string catcarbo[], string catprotein[], string catfat[], double avgcarbo, double avgprotein, double avgfat, string catavgcarb[], string catavgprot[], string catavgfat[]){

	for(int i = 0; i < 10; i++){

		if(carboDV[i] < 5)
		catcarbo[i] = "Low";
		else if(carboDV[i] >= 5 && carboDV[i] < 20)
		catcarbo[i] = "Moderate";
		else
		catcarbo[i] = "High";

		if(proteinDV[i] < 5)
		catprotein[i] = "Low";
		else if(proteinDV[i] >= 5 && proteinDV[i] < 20)
		catprotein[i] = "Moderate";
		else
		catprotein[i] = "High";

		if(fatDV[i] < 5)
		catfat[i] = "Low";
		else if(fatDV[i] >= 5 && fatDV[i] < 20)
		catfat[i] = "Moderate";
		else
		catfat[i] = "High";

		


	}

	if(avgcarbo < 5)
		catavgcarb[0] = "Low";
		else if(avgcarbo >= 5 && avgcarbo < 20)
		catavgcarb[0] = "Moderate";
		else
		catavgcarb[0]= "High";

		if(avgprotein < 5)
		catavgprot[0] = "Low";
		else if(avgprotein >= 5 && avgprotein < 20)
		catavgprot[0] = "Moderate";
		else
		catavgprot[0] = "High";

		if(avgfat < 5)
		catavgfat[0] = "Low";
		else if(avgfat >= 5 && avgfat < 20)
		catavgfat[0] = "Moderate";
		else
		catavgfat[0] = "High";

	

}
void averageDV(double carboDV[], double proteinDV[], double fatDV[], double &avgcarbo, double &avgprotein, double &avgfat){

	for(int i = 0; i < 10; i++){
		avgcarbo += carboDV[i];
		avgprotein += proteinDV[i];
		avgfat += fatDV[i];
	}

	avgcarbo /= 10;
	avgprotein /= 10;
	avgfat /= 10;

}

void outputFile(string catcarbo[], string catprotein[], string catfat[], string cerealType1[], string cerealType2[], double carboDV[], double proteinDV[], double fatDV[],  double avgcarbo, double avgprotein, double avgfat, string catavgcarb[], string catavgprot[], string catavgfat[]){

	ofstream outFile("outputcereal.txt");

	outFile << "Type" << "             " << "    Carbohydrate" << "            " << "       Protein" << "             " << "             Fat" << endl;
	outFile << "========" << "           " << "  =============" << "           " << "     =============" << "           " << "      =============" << endl;

	for(int i = 0; i < 10; i++){
		outFile << cerealType1[i] << " " << cerealType2[i] << "            " << fixed << setprecision(1) << right << setw(5) << carboDV[i] << "%" << left << setw(12) << "(" + catcarbo[i] + ")" << "            " <<  left << setw(5) << proteinDV[i] << "%" << left << setw(12) << "(" + catprotein[i] + ")" << "           " << right << setw(5) << fatDV[i] << "%" << left << setw(12) << "(" + catfat[i] + ")" << endl;
	}

	
	outFile << "\n\nThe four cereal types produce an average DV of:" << endl;
	outFile << "\nCarbohydrate : " << avgcarbo << "%(" + catavgcarb[0] + ")" << endl;
	outFile << "Protein      : " << avgprotein << "%(" + catavgprot[0] + ")" << endl;
	outFile << "Fat          : " << avgfat << "%(" + catavgfat[0] + ")" << endl;
	outFile.close();
}

int main(){

	int choice1, choice2, counter = 1;
	string catcarbo[10], catprotein[10], catfat[10], catavgcarb[1], catavgprot[1], catavgfat[1];
	string cerealType2[10];
	string cerealType1[10];
	
	double carbohydrateW[10], proteinW[10], fatW[10];
	double carbohydrateG[10], proteinG[10], fatG[10];
	double carboDV[10], proteinDV[10], fatDV[10];
	double avgcarbo, avgprotein, avgfat;
	double container[10];
	fooddata foodData;

	inputFile(foodData, cerealType1, cerealType2, carbohydrateW, proteinW, fatW);
	cout << "all good" << endl;

	calconvert(carbohydrateW, proteinW, fatW, carbohydrateG, proteinG, fatG);
	calDV(carbohydrateG, proteinG, fatG, carboDV, proteinDV, fatDV);
	averageDV(carboDV, proteinDV, fatDV, avgcarbo, avgprotein, avgfat);
	category(carboDV, proteinDV, fatDV, catcarbo, catprotein, catfat, avgcarbo, avgprotein, avgfat, catavgcarb, catavgprot, catavgfat);
	

	cout << "1. Carbohydrate \n2. Protein \n3. Fat" << endl;
	cout << "Please Enter your choice >> ";
	cin >> choice1;

	cout << "\n\n";
	cout << "1. Low \n2. Moderate \n3. High" << endl;
	cout << "Please Enter your choice >> ";
	cin >> choice2;

	string option1[3] = {"Carbohydrate", "Protein", "Fat"};
	string option2[3] = {"Low", "Moderate", "High"};

	cout << "\nlist of cereal(s) with " << option2[(choice2 - 1)] << " amount of " << option1[(choice1 - 1)] << endl;
	


if(choice1 == 1){
		if(choice2 == 1){
			for(int i = 0; i < 10; i++){
				if (catcarbo[i] == "Low"){
					cout << counter << ". Cereal" << " " << cerealType2[i] << endl;
					counter++;
				}
		
			}

		}
		else if(choice2 == 2){
			for(int i = 0; i < 10; i++){
				if (catcarbo[i] == "Moderate"){
					cout << counter << ". Cereal" << " " << cerealType2[i] << endl;
					counter++;
				}
		
			}
		}
		else{
			for(int i = 0; i < 10; i++){
				if (catcarbo[i] == "High"){
					cout << counter << ". Cereal" << " " << cerealType2[i] << endl;
					counter++;
				}
			}
		}
		
	}
else if(choice1 == 2){
		if(choice2 == 1){
			for(int i = 0; i < 10; i++){
				if (catprotein[i] == "Low"){
					cout << counter << ". Cereal" << " " << cerealType2[i] << endl;
					counter++;
				}
		
			}

		}
		else if(choice2 == 2){
			for(int i = 0; i < 10; i++){
				if (catprotein[i] == "Moderate"){
					cout << counter << ". Cereal" << " " << cerealType2[i] << endl;
					counter++;
				}
		
			}
		}
		else{
			for(int i = 0; i < 10; i++){
				if (catprotein[i] == "High"){
					cout << counter << ". Cereal" << " " << cerealType2[i] << endl;
					counter++;
				}
			}
		}
		
	}
else if(choice1 == 3){
		if(choice2 == 1){
			for(int i = 0; i < 10; i++){
				if (catfat[i] == "Low"){
					cout << counter << ". Cereal" << " " << cerealType2[i] << endl;
					counter++;
				}
		
			}

		}
		else if(choice2 == 2){
			for(int i = 0; i < 10; i++){
				if (catfat[i] == "Moderate"){
					cout << counter << ". Cereal" << " " << cerealType2[i] << endl;
					counter++;
				}
		
			}
		}
		else{
			for(int i = 0; i < 10; i++){
				if (catfat[i] == "High"){
					cout << counter << ". Cereal" << " " << cerealType2[i] << endl;
					counter++;
				}
			}
		}
		
	}

	outputFile(catcarbo, catprotein, catfat, cerealType1, cerealType2, carboDV, proteinDV, fatDV,  avgcarbo, avgprotein, avgfat, catavgcarb, catavgprot, catavgfat);


	


	return 0;

	

}

Grades Analysis System

/*CASE STUDY 2*/
/* 	NAME : NUR FIRZANA BINTI BADRUS HISHAM 
			NAWWARAH AUNI BINTI NAZRUDIN 
			NABIL AFLAH BOO BINTI MOHD YOSUF BOO YONG CHONG
			MUHAMMAD ADAM BIN RAZALI */

#include <iostream>
#include <iomanip>
#include <fstream>
#include <cstring>

using namespace std;

//Function prototype
void readFile(string [], string [], char [][20], char [], int, int);
void compareAnswer(string&, string [], char [], char [][20], int&, int [], int, int, int&);
void printMissQuestion(int, int, int [], char [], char [][20], int);
void printReport(string [], string [], char [], char [][20], int&, int [], int x, int y, int&);

int main() 
{
	const int MAX_STUDENTS = 15;
		const int NUM_QUESTIONS = 20;
		
	string studentNames[MAX_STUDENTS];
	string studentIds[MAX_STUDENTS];
	char studentAnswers[MAX_STUDENTS][NUM_QUESTIONS];
	char correctAnswers[NUM_QUESTIONS];
	
	string studentID;
	int studentIndex;
	int numMissed = 0;
	int missedQuestions[NUM_QUESTIONS];
	
	//To read and copy student data and answers and the correct answers
	readFile(studentNames, studentIds, studentAnswers, correctAnswers, MAX_STUDENTS, NUM_QUESTIONS);
	
	//To get student ID
	cout << "Enter the student ID: ";
	cin >> studentID;
	
	//To compare student answer based on the student ID
	compareAnswer(studentID, studentIds, correctAnswers, studentAnswers, numMissed, missedQuestions, MAX_STUDENTS, NUM_QUESTIONS, studentIndex);
	
	//Display output on the screen
	cout << "\nEXAM RESULT\n";
	cout << "Name: " << studentNames[studentIndex] << endl;
	cout << "Student ID: " << studentIds[studentIndex] << endl;
	cout << "Number of questions missed: " << numMissed << endl;
	cout << "List of the questions missed: " << endl;
	cout << left << setw(10) << "Question" << setw(18) << "Correct Answer" << setw(15) << "Student Answer" << endl;
	//To display the list of question missed, correct answer and student answer
	printMissQuestion(studentIndex, numMissed, missedQuestions, correctAnswers, studentAnswers, NUM_QUESTIONS);
	
	//To calculate the student percentage 
	double percentage = static_cast(NUM_QUESTIONS - numMissed) / NUM_QUESTIONS * 100.0;
	
	//To determine student grade
	char grade;
	if (percentage >= 80) 
		grade = 'A';
		else if (percentage >= 70) 
		grade = 'B';
	else if (percentage >= 60) 
		grade = 'C';
	else 
		grade = 'F';
		
	//Display output on the screen
	cout << "Percentage: " << fixed << setprecision(2) << percentage << "% , GRED : " << grade << "\n";
	
	//To display output on the output File
	printReport(studentNames, studentIds, correctAnswers, studentAnswers, numMissed, missedQuestions, MAX_STUDENTS, NUM_QUESTIONS, studentIndex);
	
	return 0;
}
	
void readFile(string names[], string ids[], char studentAns[][20],char correctAns[], int x, int y)
{
	//Open StudentAnswers.dat file
	ifstream inputFile("StudentAnswers.dat");
	
	if (!inputFile) 
	{
		cout << "Unable to open StudentAnswers.dat" << endl;
	}

	//To read and copy student data and answers
	for (int i = 0; i < x; i++)
	{
		inputFile >> names[i] >> ids[i];
			for (int j = 0; j < y; j++) 
			{
				inputFile >> studentAns[i][j];
			}
	}
	
	//Close StudentAnswers.dat file
	inputFile.close();
	
	//Open CorrectAnswer.txt file
	ifstream correctAnswersFile("CorrectAnswer.txt");
	if (!correctAnswersFile) 
	{
		cout << "Unable to open CorrectAnswer.txt" << endl;
	}

	//To read and copy the correct answers
	for (int i = 0; i < y; i++) 
	{
		correctAnswersFile >> correctAns[i];
	}
	
	//Close CorrectAnswer.txt file
	correctAnswersFile.close();
}

void compareAnswer(string& inputID, string ids[], char correctAns[], char studentAns[][20], int& numMissed, int missedQuestions[], int x, int y, int& studentIndex) 
{
	//Finding students with the id
	bool studentFound = false;
	for (int i = 0; i < x; i++) 
	{
		if (inputID == ids[i]) 
		{
			studentFound = true;
			studentIndex = i;
			break;
		}
	}
	
	//Comparing the answers
	if (studentFound)
	{
		for (int i = 0; i < y; i++) 
		{
			if (studentAns[studentIndex][i] != correctAns[i]) 
			{
				missedQuestions[numMissed++] = i;
			}
		}		
	}
	else
		cout << "Student not found" << endl;
}

void printMissQuestion(int studentIndex, int numMissed, int missQuest[], char correctAnswer[], char studentAnswer[][20],int y) 
{ 
	for (int i = 0; i < numMissed; i++) 
	{
		cout << left << setw(13) << (missQuest[i] + 1) << setw(20) << correctAnswer[missQuest[i]] << setw(22) << studentAnswer[studentIndex][missQuest[i]] << endl;
	}
}

void printReport(string name[], string ids[], char correctAns[], char studentAns[][20], int& numMissed, int missedQuestions[], int x, int y, int& studentIndex) 
{
	// Open GradesReport.txt file
	ofstream outputFile("GradesReport.txt");
	if (!outputFile) 
	{
		cerr << "Error: Unable to open GradesReport.txt" << endl;
		return;
	}

	// Display on output file
	outputFile << "LIST OF STUDENTS AND GRADES" << endl;
	outputFile << left << setw(15) << "NAME" << setw(15) << "ID" << setw(15) << "PERCENTAGE" << setw(10) << "GRADE" << endl;

	for (int i = 0; i < x; i++) 
	{
		numMissed = 0;
		// Compare answer for each student
		compareAnswer(ids[i], ids, correctAns, studentAns, numMissed, missedQuestions, x, y, studentIndex);

		// Determine percentage for each student
		double percentage = static_cast(y - numMissed) / y * 100;

		// Determine grade for each student
		char grade;
		if (percentage >= 80) 
			grade = 'A';
		else if (percentage >= 70) 
			grade = 'B';
		else if (percentage >= 60) 
			grade = 'C';
		else 
			grade = 'F';

		// Display on output file for each student
		outputFile << left << setw(15) << name[i] << setw(15) << ids[i] << setw(15) << fixed << setprecision(2) << percentage << setw(10) << grade << endl;
	}

	// Close GradesReport.txt file
	outputFile.close();
}