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

using namespace std;

struct SUBJECT{
	int id;
    string subjectname;
    int quota;
};


SUBJECT allSubjects[20];

int totalsubject = 0;

void readSubjects(){
	ifstream inputFile("subjects.txt");
	string t;
	int quota, total=0;
	 if (!inputFile.is_open()) {
        cerr << "Error: could not open file." << endl;
    }
    while (getline(inputFile, t)) {
        cout << "subj:" << t << endl;
		allSubjects[total].id=total;
		allSubjects[total].subjectname=t;
	
        if (getline(inputFile, t)) {
            quota = stoi(t);
			allSubjects[total].quota = quota;
        } else {
            cerr << "Error: could not read next line." << endl;
            break; // Exit the loop if the integer read fails
        }
		total++;
    }
	inputFile.close();
	totalsubject = total;
}

void printSubjects(){
	
	for(int i=0;i<totalsubject;i++){
		cout << allSubjects[i].id << endl;
		cout << allSubjects[i].subjectname << endl;
		cout << allSubjects[i].quota << endl;
	}
}
void readFile(){
	readSubjects();
	//readStudents();
}
int main(){

	int option;
	do{
		cout <<"\t1. Read File "<<endl;
		cout <<"\t2. Allocate "<<endl;
		cout <<"\t3. Save Result "<<endl;
		cout <<"\t4. Print Data "<<endl;
		cout <<"\t0. Exit "<<endl;
		cout << endl;
	
		cout << "Please enter an option: " <<endl;
	
		
		do{
			cout << "> ";
			cin >> option;
		}while(option <0||option>4);
		if(option==1){
			readFile();
		}
		else if(option==4){
			printSubjects();
		}
	}while(option != 0);
	return 0;
	
}