i`ve done a few codes and i compile it so that i can review it
but it got stuck when i want to assign a room.
i dont know why..
can someone please help me to fix this please...

#include <iostream>
#include <vector>
#include <cstdlib>
#include <set>
#include <algorithm>
#include <string>

using namespace std;

class student
{
protected:
	string name, dummy,status;
	char gender;
	int ID;
public:
	student() : name("UNKNOWN"), ID(0), gender('-'), status("unassigned"){}
	student (string Name, int ID, char Gender)
	{
		this->name = Name;
		this->ID = ID;
		this->gender = Gender;
	}
	student(const student& s): name(s.name), ID(s.ID), gender(s.gender){}
	void setstudent();
	void setstatus(string status) {this->status = status;}
	void print(int i) const;
	int getid(){return ID;}
};

void student::setstudent()
{
	cout << "Enter student's ID: ";
	cin >> ID;
	cout << "Enter student's gender (M/F): ";
	cin >> gender;
	gender = toupper(gender);
	getline(cin, dummy);
	cout << "Enter student's name: ";
	getline(cin, name);
}

void student::print(int i) const
{
	cout << i+1 << ". ID: " << ID << " ||  NAME: " << name <<
	" ||  SEX: " << gender << " ||  ROOM: " << status << endl;
}

class room
{
protected:
	vector<student*> students;
	vector<student*>::iterator it;
public:

	void addstudent(student* s);
		void delstudent (int target);
	void printALL();
	void availroom(); //print available room
	int studentsize(){return students.size();}
	void assignMA(char MA[8][2]);
	void assignMB(char MB[12][3]);
	void assignFA(char FA[6][2]);
	void assignFB(char FB[14][3]);
	void unAssignMA(char MA[8][2]);
	void unAssignMB(char MB[12][3]);
	void unAssignFA(char FA[6][2]);
	void unAssignFB(char FB[14][3]);
	void availPlaceMA (char MA[8][2]);
	void availPlaceMB (char MB[12][3]);
	void availPlaceFA (char FA[6][2]);
	void availPlaceFB (char FB[14][3]);
    void addRoom(int target);
    void delRoom(int target);

};

void room::addstudent(student* s)
{
	students.push_back(s);
}

void room::delstudent(int target)
{
	students.erase(students.begin()+target);
}

void room::printALL()
{
	for(int i = 0; i < students.size(); i++)
		students[i]->print(i);
}

void room:: assignMA(char MA[8][2])
{
	 int i ; // row
	 int j; // column
    int c =0;
	 char more='Y';

     do
     {
         cout << endl;
		 cout<<"  Please enter room desired 1-8 :";
		 cin>>i;
		 cout<<endl;

        while(i>8||i<1)
         {
            cout << i << endl;
            cout <<" invalid room" << endl;
            cout << " Enter Room desired 1-8 ";
            cin >> i;
         }

         i--;

       for(j=0;j<2;j++){

         if( MA[i][j]=='X'){
         c++;
         if (c = 2){cout << "Room is full..select other Room";}

		 }
     }


	 }while (MA[i][j]=='X');
		  MA[i][j]='X';
		  i++;
		  cout << " Success assigning room ."<< endl;
		  cout << "room no = MA" << i<<endl;

	 return;

}

void room:: assignMB(char MB[12][3])
{
	 int i ; // row
	 int j; // column
    int c =0;
	 char more='Y';

     do
     {
         cout << endl;
		 cout<<"  Please enter room desired 1-12 :";
		 cin>>i;
		 cout<<endl;

        while(i>12||i<1)
         {
            cout << i << endl;
            cout <<" invalid room" << endl;
            cout << " Enter Room desired 1-12 ";
            cin >> i;
            i--;
         }

       for(j=0;j<2;j++){

         if( MB[i][j]=='X'){
         c++;
         if (c = 3){cout << "Room is full..select other Room";}

		 }
     }



     }while (MB[i][j]=='X');
		  MB[i][j]='X';
		  cout << " Success assigning room ."<<endl;
		  i++;
		  cout << "room no = MB" << i<<endl;

      return;
}

void room:: assignFA(char FA[6][2])
{
	 int i ; // row
	 int j; // column
    int c =0;
	 char more='Y';

     do
     {
         cout << endl;
		 cout<<"  Please enter room desired 1-12 :";
		 cin>>i;
		 cout<<endl;

        while(i>6||i<1)
         {
            cout << i << endl;
          cout <<" invalid room" << endl;
            cout << " Enter Room desired 1-6 ";
            cin >> i;
            i--;
         }

       for(j=0;j<2;j++){

         if( FA[i][j]=='X'){
         c++;
         if (c = 2){cout << "Room is full..select other Room";}

		 }
     }

     }while (FA[i][j]=='X');
		  FA[i][j]='X';
		  cout << " Success assigning room ."<<endl;
		  i++;
		    cout << "room no = FA" << i<<endl;

        return;

};


void room:: assignFB(char FB[14][3])
{
	 int i ; // row
	 int j; // column
    int c =0;
	 char more='Y';

     do
     {
         cout << endl;
		 cout<<"  Please enter room desired 1-14 :";
		 cin>>i;
		 cout<<endl;

        while(i>14||i<1)
         {
            cout << i << endl;
            cout <<" invalid room" << endl;
            cout << " Enter Room desired 1-14 ";
            cin >> i;
            i--;
         }

       for(j=0;j<3;j++){

         if( FB[i][j]=='X'){
         c++;
         if (c = 3){cout << "Room is full..select other Room";}

		 }
     }

            }while (FB[i][j]=='X');
		  FB[i][j]='X';
		  cout << " Success assigning room"<<endl;
		  i++;
     cout << "room no = FB" << i<<endl;
            return;

};

void room::addRoom(int target)
{
    string roomno;

    cout << "reinput the room no for student record= " ;
    cin>>roomno;
	students[target]->setstatus(roomno);
	//students.erase(students.begin()+target);
}

void room::availPlaceMA (char MA[8][2])
	 { //print available room
		 int category;
		 int row_counter, column_counter = 0;
		 int avail_counter = 0;
		 int counter = 0;

			 cout <<"This is list of available room" << endl;

				for(row_counter = 0; row_counter <= 7 ; row_counter++)
			 {
			     counter = 0;
				 for( column_counter = 0; column_counter <=1; column_counter++ )
					 {


						 if (MA[row_counter][column_counter] == '*')
						 {
							          counter++;

						 }
					 }
					 if (counter >= 1)
                            {
                                cout << "MA" << row_counter+1<< " got " <<counter << "available place"<<endl;
                            }
				 cout << endl;
			 }

	 }

void room::availPlaceMB (char MB[12][3])
	 { //print available room
		 int category;
		 int row_counter, column_counter = 0;
		 int avail_counter = 0;
		 int counter = 0;

			 cout <<"This is list of available room" << endl;

				for(row_counter = 0; row_counter <= 11 ; row_counter++)
			 {
			     counter = 0;
				 for( column_counter = 0; column_counter <=2; column_counter++ )
					 {
						 if (MB[row_counter][column_counter] == '*')
						 {
							          counter++;

						 }
						 if (counter >= 1)
                            {
                                cout << "MB" << row_counter+1<< " got " <<counter << "available place"<<endl;
                            }

					 }
				 cout << endl;
			 }

	 }

void room::availPlaceFA (char FA[6][2])
	 { //print available room
		 int category;
		 int row_counter, column_counter = 0;
		 int avail_counter = 0;
		 int counter = 0;

			 cout <<"This is list of available room" << endl;

				for(row_counter = 0; row_counter <= 5 ; row_counter++)
			 {
			     counter =0;
				 for( column_counter = 0; column_counter <=1; column_counter++ )
					 {
						 if (FA[row_counter][column_counter] == '*')
						 {
							          counter++;

						 }
						 if (counter >= 1)
                            {
                                cout << "FA" << row_counter+1<< " got " <<counter << "available place"<<endl;
                            }

					 }
				 cout << endl;
			 }

	 }

void room::availPlaceFB (char FB[14][3])
	 { //print available room
		 int category;
		 int row_counter, column_counter = 0;
		 int avail_counter = 0;
		 int counter = 0;

			 cout <<"This is list of available room" << endl;

				for(row_counter = 0; row_counter <= 13 ; row_counter++)
			 {
			     counter =0;
				 for( column_counter = 0; column_counter <=2; column_counter++ )
					 {
						 if (FB[row_counter][column_counter] == '*')
						 {
							          counter++;

						 }
						 if (counter >= 1)
                            {
                                cout << "FB" << row_counter+1<< " got "<< counter << "available place"<<endl;
                            }
					 }
				 cout << endl;
			 }

	 }


void room:: unAssignMA(char MA[8][2])
{
	 int i ; // row
	 int j; // column
    int c =0;
	 char more='Y';

     do
     {
         cout << endl;
		 cout<<"  Please enter room desired 1-8 :";
		 cin>>i;
		 cout<<endl;

        while(i>8||i<1)
         {
            cout << i << endl;
            cout <<" invalid room" << endl;
            cout << " Enter Room desired 1-8 ";
            cin >> i;
         }

         i--;

       for(j=0;j<2;j++){

         if( MA[i][j]=='*'){
         c++;
         if (c = 2){cout << "Room is already empty..select other Room";}

		 }
     }
	 }while (MA[i][j]=='*');
		  MA[i][j]='*';
		  cout << " Success unassigning room ."<<endl;
		  i++;
		  cout << "room no = MA" << i<<endl;

        return;

}

void room:: unAssignMB(char MB[12][3])
{
	 int i ; // row
	 int j; // column
    int c =0;
	 char more='Y';

     do
     {
         cout << endl;
		 cout<<"  Please enter room desired 1-12 :";
		 cin>>i;
		 cout<<endl;

        while(i>12||i<1)
         {
            cout << i << endl;
            cout <<" invalid room" << endl;
            cout << " Enter Room desired 1-12 ";
            cin >> i;
            i--;
         }

       for(j=0;j<2;j++){

         if( MB[i][j]=='*'){
         c++;
         if (c = 3){cout << "Room is already empty..select other Room";}
		 }
     }



     }while (MB[i][j]=='*');
		  MB[i][j]='*';
		  cout << " Success unassigning room ."<<endl;
		  i++;
		  cout << "room no = MB" << i<<endl;
      return;
}

void room:: unAssignFA(char FA[6][2])
{
	 int i ; // row
	 int j; // column
    int c =0;
	 char more='Y';

     do
     {
         cout << endl;
		 cout<<"  Please enter room desired 1-12 :";
		 cin>>i;
		 cout<<endl;

        while(i>6||i<1)
         {
            cout << i << endl;
           cout <<" invalid room" << endl;
            cout << " Enter Room desired 1-6 ";
            cin >> i;
            i--;
         }

       for(j=0;j<2;j++){

         if( FA[i][j]=='*'){
         c++;
         if (c = 2){cout << "Room is already empty..select other Room";}

		 }
         }
     }while (FA[i][j]=='*');
		  FA[i][j]='*';
		  cout << " Success unassigning room ."<<endl;
         i++;
         cout << "room no = FA" << i<<endl;

        return;

};


void room:: unAssignFB(char FB[14][3])
{
	 int i ; // row
	 int j; // column
    int c =0;
	 char more='Y';

     do
     {
         cout << endl;
		 cout<<"  Please enter room desired 1-14 :";
		 cin>>i;
		 cout<<endl;

        while(i>14||i<1)
         {
            cout << i << endl;
            cout <<" invalid room" << endl;
            cout << " Enter Room desired 1-14 ";
            cin >> i;
            i--;
         }

       for(j=0;j<3;j++){

         if( FB[i][j]=='*'){
         c++;
         if (c = 3){cout << "Room is already..select other Room";}

		 }
     }

            }while (FB[i][j]=='*');
		  FB[i][j]='*';
		  cout << " Success unassigning room ."<<endl;
		  i++;
     cout << "room no = FB" << i<<endl;
            return;

};

void room::delRoom(int target)
{
 	students[target]->setstatus("unassigned");
	//students.erase(students.begin()+target);
}


void mainmenu()
{
	cout << "*===========================================*" << endl <<
	"|[1] add students                           |" << endl <<
	"|[2] delete student                         |" << endl <<
	"|[3] assign rooms                           |" << endl <<
	"|[4] empty rooms                            |" << endl <<
	"|[5] List students                          |" << endl <<
	"|[6] Exit                                   |" << endl <<
	"*===========================================+" << endl << endl << endl;
}

void roomMenu1()
{
    cout << "*===========================================*" << endl <<
	"|[1] ASSIGN ROOM TO A STUDENT                       |" << endl <<
	"|[2] UNASSIGN A ROOM FROM A STUDENT                 |" << endl <<
	"|[3] ASSIGN ROOM ACCORDING TO GENDER                |" << endl <<
	"|[4] back                                           |" << endl <<
	"*===========================================+" << endl << endl << endl;
}

	room a;
	room r1;
	student* s1 = NULL;
	int target;
	int num;
	bool done = false;
	char choice,choice2, option;
    char gender2;
    char m,f,F,M;

    char MAs[8][2];
    char MBs[12][3];
    char FAs[6][2];
    char FBs[14][3];

int main()
{

    for( int row = 0; row < 8; ++row ){
        for( int column = 0; column < 2; ++column )
        {
		 MAs[row][column] = '*';
        }
    }
    for( int row = 0; row < 12; ++row ){
        for( int column = 0; column < 3; ++column )
        {
		 MBs[row][column] = '*';
        }
    }
    for( int row = 0; row < 6; ++row ){
        for( int column = 0; column < 2; ++column )
        {
		 FAs[row][column] = '*';
        }
    }
    for( int row = 0; row < 14; ++row ){
        for( int column = 0; column < 3; ++column )
        {
		 FBs[row][column] = '*';
        }
    }

	do
	{
		mainmenu();
		cout << "Select option (1-6): ";
		cin >> option;
		option = toupper(option);
		switch (option)
		{
			case '1' :  cout << "Add student? (Y/N):";
                        cin >> choice;
                        system ( "cls" );
                        while (toupper(choice) == 'Y')
                        {
                             cout << "existed student " <<endl;
                             r1.printALL();
                             s1 = new student;
                             s1->setstudent();
                             r1.addstudent(s1);
                             cout << "add more students?(Y/N): ";
                             cin >> choice;
                        }
                        r1.printALL();
                        system("pause");
                        system("cls");
                        break;

			case '2' :  cout << "Delete student? (Y/N):";
                        cin >> choice;

                        while (toupper(choice) == 'Y')
                        {
                            system("cls");
                            r1.printALL();
                            cout << "select a student(1-" << r1.studentsize() << "): ";
                            cin >> target;
                            cout << endl;
                        target=target-1;

                        r1.delstudent(target);

                        cout << "Delete more students?(Y/N): ";
                        cin >> choice;

                        };
                        system("pause");
                        system("cls");
                        break;

			case '3' :  cout << "Assign to room? (Y/N):";
                        cin >> choice;

                        num = 2;


                        while (toupper(choice) == 'Y' )
                        {
                            system("cls");
                            r1.printALL();
                            cout << "select a student(1-" << r1.studentsize() << "): ";
                            cin >> target;
                            target--;

                            cout << "input f for female/m for male :";
                            cin >> gender2;
                            if (gender2 =='m'||gender2=='M')
                            {
                                cout << "choose type A or B? :" ;
                                cin >> choice2;
                                cout <<endl;
                                if(choice2=='A'||choice2=='a')
                                {
                                    a.availPlaceMA (MAs);
                                    a.assignMA(MAs);
                                    a.addRoom(target);
                                }
                                else if(choice2=='B'||choice2=='b')
                                {
                                    a.availPlaceMB (MBs);
                                    a.assignMB(MBs);
                                    a.addRoom(target);
                                }
                            }
                            else  if (gender2 =='f'||gender2=='F')
                            {
                                cout << "choose type A or B? :" ;
                                cin >> choice2;
                                cout << endl;
                                if(choice2=='A'||choice2=='a')
                                {
                                    a.availPlaceFA (FAs);
                                    a.assignFA(FAs);
                                    a.addRoom(target);
                                }
                                else if(choice2=='B'||choice2=='b')
                                {
                                    a.availPlaceFB(FBs);
                                    a.assignFB(FBs);
                                    a.addRoom(target);
                                }
                            }

                        }

                        cout << "Assign more?(Y/N): ";
                        cin >> choice;


                        system("pause");
                        system("cls");
                        break;

			case '4' :  cout << "Unassign room? (Y/N):";
                        cin >> choice;

                        while (toupper(choice) == 'Y' )
                        {
                            system("cls");
                            r1.printALL();
                            cout << "select a student(1-" << r1.studentsize() << "): ";
                            cin >> target;
                            target--;

                            cout << "input f for female/m for male :";
                            cin >> gender2;
                            if (gender2 =='m'||gender2=='M')
                            {
                                cout << "choose type A or B? :" ;
                                cin >> choice2;
                                cout<<endl;
                                if(choice2=='A'||choice2=='a')
                                {
                                    a.unAssignMA(MAs);
                                    a.delRoom(target);
                                }
                                else if(choice2=='B'||choice2=='b')
                                {
                                a.unAssignMB(MBs);
                                a.delRoom(target);
                                }
                            }
                            else  if (gender2 =='f'||gender2=='F')
                            {
                                cout << "choose type A or B? :" ;
                                cin >> choice2;
                                cout<<endl;
                                if(choice2=='A'||choice2=='a')
                                {
                                    a.unAssignFA(FAs);
                                    a.delRoom(target);
                                }
                                else if(choice2=='B'||choice2=='b')
                                {
                                    a.unAssignFB(FBs);
                                    a.delRoom(target);
                                }
                            }

                        }

                        cout << "Assign more?(Y/N): ";
                        cin >> choice;
                        a.printALL();
                        system("pause");
                        system("cls");
                        break;

			case '5' :  r1.printALL();
                        system("pause");
                        system("cls");
                        break;

            case '6' : done = true;
                        break;

        }
}while(!done);

	return 0;
}

really2 hope u guys can help me :)

Have you tried to comment out the functions one by one, and then putting them back together? So, that way you could find, where is the point when your program starts to hang. Not a sophisticated way of debugging, but it might help narrowing the odds.

#include <iostream>
#include <vector>
#include <cstdlib>
#include <set>
#include <algorithm>
#include <string>

using namespace std;

class student
{
protected:
string name, dummy,status;
char gender;
int ID;
public:
student() : name("UNKNOWN"), ID(0), gender('-'), status("unassigned"){}
student (string Name, int ID, char Gender)
{
this->name = Name;
this->ID = ID;
this->gender = Gender;
}
student(const student& s): name(s.name), ID(s.ID), gender(s.gender){}
void setstudent();
void setstatus(string status) {this->status = status;}
void print(int i) const;
int getid(){return ID;}
};

void student::setstudent()
{
cout << "Enter student's ID: ";
cin >> ID;
cout << "Enter student's gender (M/F): ";
cin >> gender;
gender = toupper(gender);
getline(cin, dummy);
cout << "Enter student's name: ";
getline(cin, name);
}

void student::print(int i) const
{
cout << i+1 << ". ID: " << ID << " || NAME: " << name <<
" || SEX: " << gender << " || ROOM: " << status << endl;
}

class room
{
protected:
vector<student*> students;
vector<student*>::iterator it;
public:

void addstudent(student* s);
void delstudent (int target);
void printALL();
void availroom(); //print available room
int studentsize(){return students.size();}
void assignMA(char MA[8][2]);
void assignMB(char MB[12][3]);
void assignFA(char FA[6][2]);
void assignFB(char FB[14][3]);
void unAssignMA(char MA[8][2]);
void unAssignMB(char MB[12][3]);
void unAssignFA(char FA[6][2]);
void unAssignFB(char FB[14][3]);
void availPlaceMA (char MA[8][2]);
void availPlaceMB (char MB[12][3]);
void availPlaceFA (char FA[6][2]);
void availPlaceFB (char FB[14][3]);
void addRoom(int target);
void delRoom(int target);

};

void room::addstudent(student* s)
{
students.push_back(s);
}

void room::delstudent(int target)
{
students.erase(students.begin()+target);
}

void room::printALL()
{
for(int i = 0; i < students.size(); i++)
students->print(i);
}

void room:: assignMA(char MA[8][2])
{
int i ; // row
int j; // column
int c =0;
char more='Y';

do
{
cout << endl;
cout<<" Please enter room desired 1-8 :";
cin>>i;
cout<<endl;

while(i>8||i<1)
{
cout << i << endl;
cout <<" invalid room" << endl;
cout << " Enter Room desired 1-8 ";
cin >> i;
}

i--;

for(j=0;j<2;j++){

if( MA[j]=='X'){
c++;
if (c = 2){cout << "Room is full..select other Room";}

}
}


}while (MA[j]=='X');
MA[j]='X';
i++;
cout << " Success assigning room ."<< endl;
cout << "room no = MA" << i<<endl;

return;

}

void room:: assignMB(char MB[12][3])
{
int i ; // row
int j; // column
int c =0;
char more='Y';

do
{
cout << endl;
cout<<" Please enter room desired 1-12 :";
cin>>i;
cout<<endl;

while(i>12||i<1)
{
cout << i << endl;
cout <<" invalid room" << endl;
cout << " Enter Room desired 1-12 ";
cin >> i;

}
i--;

for(j=0;j<2;j++){

if( MB[j]=='X'){
c++;
if (c = 3){cout << "Room is full..select other Room";}

}
}

}while (MB[j]=='X');
MB[j]='X';
cout << " Success assigning room ."<<endl;
i++;
cout << "room no = MB" << i<<endl;

return;
}

void room:: assignFA(char FA[6][2])
{
int i ; // row
int j; // column
int c =0;
char more='Y';

do
{
cout << endl;
cout<<" Please enter room desired 1-12 :";
cin>>i;
cout<<endl;

while(i>6||i<1)
{
cout << i << endl;
cout <<" invalid room" << endl;
cout << " Enter Room desired 1-6 ";
cin >> i;

}
i--;
for(j=0;j<2;j++){

if( FA[j]=='X'){
c++;
if (c = 2){cout << "Room is full..select other Room";}

}
}

}while (FA[j]=='X');
FA[j]='X';
cout << " Success assigning room ."<<endl;
i++;
cout << "room no = FA" << i<<endl;

return;

};


void room:: assignFB(char FB[14][3])
{
int i ; // row
int j; // column
int c =0;
char more='Y';

do
{
cout << endl;
cout<<" Please enter room desired 1-14 :";
cin>>i;
cout<<endl;

while(i>14||i<1)
{
cout << i << endl;
cout <<" invalid room" << endl;
cout << " Enter Room desired 1-14 ";
cin >> i;

}
i--;
for(j=0;j<3;j++){

if( FB[j]=='X'){
c++;
if (c = 3){cout << "Room is full..select other Room";}

}
}

}while (FB[j]=='X');
FB[j]='X';
cout << " Success assigning room"<<endl;
i++;
cout << "room no = FB" << i<<endl;
return;

};

void room::addRoom(int target)
{
string roomno;

cout << "reinput the room no for student record= " ;
cin>>roomno;
students.push_back(students[target]);
students[target]->setstatus(roomno);
students.erase(students.begin()+target);
}

void room::availPlaceMA (char MA[8][2])
{ //print available room
int category;
int row_counter, column_counter = 0;
int avail_counter = 0;
int counter = 0;

cout <<"This is list of available room" << endl;

for(row_counter = 0; row_counter <= 7 ; row_counter++)
{
counter = 0;
for( column_counter = 0; column_counter <=1; column_counter++ )
{


if (MA[row_counter][column_counter] == '*')
{
counter++;

}
}
if (counter >= 1)
{
cout << "MA" << row_counter+1<< " got " <<counter << "available place"<<endl;
}
cout << endl;
}

}

void room::availPlaceMB (char MB[12][3])
{ //print available room
int category;
int row_counter, column_counter = 0;
int avail_counter = 0;
int counter = 0;

cout <<"This is list of available room" << endl;

for(row_counter = 0; row_counter <= 11 ; row_counter++)
{
counter = 0;
for( column_counter = 0; column_counter <=2; column_counter++ )
{
if (MB[row_counter][column_counter] == '*')
{
counter++;

}


}
if (counter >= 1)
{
cout << "MB" << row_counter+1<< " got " <<counter << "available place"<<endl;
}
cout << endl;
}

}

void room::availPlaceFA (char FA[6][2])
{ //print available room
int category;
int row_counter, column_counter = 0;
int avail_counter = 0;
int counter = 0;

cout <<"This is list of available room" << endl;

for(row_counter = 0; row_counter <= 5 ; row_counter++)
{
counter =0;
for( column_counter = 0; column_counter <=1; column_counter++ )
{
if (FA[row_counter][column_counter] == '*')
{
counter++;

}

}
if (counter >= 1)
{
cout << "FA" << row_counter+1<< " got " <<counter << "available place"<<endl;
}

cout << endl;
}

}

void room::availPlaceFB (char FB[14][3])
{ //print available room
int category;
int row_counter, column_counter = 0;
int avail_counter = 0;
int counter = 0;

cout <<"This is list of available room" << endl;

for(row_counter = 0; row_counter <= 13 ; row_counter++)
{
counter =0;
for( column_counter = 0; column_counter <=2; column_counter++ )
{
if (FB[row_counter][column_counter] == '*')
{
counter++;

}

}
if (counter >= 1)
{
cout << "FB" << row_counter+1<< " got "<< counter << "available place"<<endl;
}
cout << endl;
}

}


void room:: unAssignMA(char MA[8][2])
{
int i ; // row
int j; // column
int c =0;
char more='Y';

do
{
cout << endl;
cout<<" Please enter room desired 1-8 :";
cin>>i;
cout<<endl;

while(i>8||i<1)
{
cout << i << endl;
cout <<" invalid room" << endl;
cout << " Enter Room desired 1-8 ";
cin >> i;
}

i--;

for(j=0;j<2;j++){

if( MA[j]=='*'){
c++;
if (c = 2){cout << "Room is already empty..select other Room";}

}
}
}while (MA[j]=='*');
MA[j]='*';
cout << " Success unassigning room ."<<endl;
i++;
cout << "room no = MA" << i<<endl;

return;

}

void room:: unAssignMB(char MB[12][3])
{
int i ; // row
int j; // column
int c =0;
char more='Y';

do
{
cout << endl;
cout<<" Please enter room desired 1-12 :";
cin>>i;
cout<<endl;

while(i>12||i<1)
{
cout << i << endl;
cout <<" invalid room" << endl;
cout << " Enter Room desired 1-12 ";
cin >> i;

}
i--;
for(j=0;j<2;j++){

if( MB[j]=='*'){
c++;
if (c = 3){cout << "Room is already empty..select other Room";}
}
}

}while (MB[j]=='*');
MB[j]='*';
cout << " Success unassigning room ."<<endl;
i++;
cout << "room no = MB" << i<<endl;
return;
}

void room:: unAssignFA(char FA[6][2])
{
int i ; // row
int j; // column
int c =0;
char more='Y';

do
{
cout << endl;
cout<<" Please enter room desired 1-12 :";
cin>>i;
cout<<endl;

while(i>6||i<1)
{
cout << i << endl;
cout <<" invalid room" << endl;
cout << " Enter Room desired 1-6 ";
cin >> i;
}
i--;
for(j=0;j<2;j++){

if( FA[j]=='*'){
c++;
if (c = 2){cout << "Room is already empty..select other Room";}

}
}
}while (FA[j]=='*');
FA[j]='*';
cout << " Success unassigning room ."<<endl;
i++;
cout << "room no = FA" << i<<endl;

return;

};


void room:: unAssignFB(char FB[14][3])
{
int i ; // row
int j; // column
int c =0;
char more='Y';

do
{
cout << endl;
cout<<" Please enter room desired 1-14 :";
cin>>i;
cout<<endl;

while(i>14||i<1)
{
cout << i << endl;
cout <<" invalid room" << endl;
cout << " Enter Room desired 1-14 ";
cin >> i;
}
i--;

for(j=0;j<3;j++){

if( FB[j]=='*'){
c++;
if (c = 3){cout << "Room is already..select other Room";}

}
}

}while (FB[j]=='*');
FB[j]='*';
cout << " Success unassigning room ."<<endl;
i++;
cout << "room no = FB" << i<<endl;
return;

};

void room::delRoom(int target)
{
students[target]->setstatus("UNASSIGNED");
students.push_back(students[target]);
students.erase(students.begin()+target);
}


void mainmenu()
{
cout << "*===========================================*" << endl <<
"|[1] add students |" << endl <<
"|[2] delete student |" << endl <<
"|[3] assign rooms |" << endl <<
"|[4] empty rooms |" << endl <<
"|[5] List students |" << endl <<
"|[6] Exit |" << endl <<
"*===========================================+" << endl << endl << endl;
}

void roomMenu1()
{
cout << "*===========================================*" << endl <<
"|[1] ASSIGN ROOM TO A STUDENT |" << endl <<
"|[2] UNASSIGN A ROOM FROM A STUDENT |" << endl <<
"|[3] ASSIGN ROOM ACCORDING TO GENDER |" << endl <<
"|[4] back |" << endl <<
"*===========================================+" << endl << endl << endl;
}

room a;
room r1;
student* s1 = NULL;
int target;
int num;
bool done = false;
char choice,choice2, option;
char gender2;
char m,f,F,M;

char MAs[8][2];
char MBs[12][3];
char FAs[6][2];
char FBs[14][3];

int main()
{

for( int row = 0; row < 8; ++row ){
for( int column = 0; column < 2; ++column )
{
MAs[row][column] = '*';
}
}
for( int row = 0; row < 12; ++row ){
for( int column = 0; column < 3; ++column )
{
MBs[row][column] = '*';
}
}
for( int row = 0; row < 6; ++row ){
for( int column = 0; column < 2; ++column )
{
FAs[row][column] = '*';
}
}
for( int row = 0; row < 14; ++row ){
for( int column = 0; column < 3; ++column )
{
FBs[row][column] = '*';
}
}

do
{
mainmenu();
cout << "Select option (1-6): ";
cin >> option;
option = toupper(option);
switch (option)
{
case '1' : cout << "Add student? (Y/N):";
cin >> choice;
system ( "cls" );
while (toupper(choice) == 'Y')
{
cout << "existed student " <<endl;
r1.printALL();
s1 = new student;
s1->setstudent();
r1.addstudent(s1);
cout << "add more students?(Y/N): ";
cin >> choice;
}
r1.printALL();
system("pause");
system("cls");
break;

case '2' : cout << "Delete student? (Y/N):";
cin >> choice;

while (toupper(choice) == 'Y')
{
system("cls");
r1.printALL();
cout << "select a student(1-" << r1.studentsize() << "): ";
cin >> target;
cout << endl;
target=target-1;

r1.delstudent(target);

cout << "Delete more students?(Y/N): ";
cin >> choice;

};
system("pause");
system("cls");
break;

case '3' : cout << "Assign to room? (Y/N):";
cin >> choice;

num = 2;


while (toupper(choice) == 'Y' )
{
system("cls");
r1.printALL();
cout << "select a student(1-" << r1.studentsize() << "): ";
cin >> target;
target--;

cout << "input f for female/m for male :";
cin >> gender2;
if (gender2 =='m'||gender2=='M')
{
cout << "choose type A or B? :" ;
cin >> choice2;
cout <<endl;
if(choice2=='A'||choice2=='a')
{
a.availPlaceMA (MAs);
a.assignMA(MAs);
a.addRoom(target);
}
else if(choice2=='B'||choice2=='b')
{
a.availPlaceMB (MBs);
a.assignMB(MBs);
a.addRoom(target);
}
}
else if (gender2 =='f'||gender2=='F')
{
cout << "choose type A or B? :" ;
cin >> choice2;
cout << endl;
if(choice2=='A'||choice2=='a')
{
a.availPlaceFA (FAs);
a.assignFA(FAs);
a.addRoom(target);
}
else if(choice2=='B'||choice2=='b')
{
a.availPlaceFB(FBs);
a.assignFB(FBs);
a.addRoom(target);
}
}

}

cout << "Assign more?(Y/N): ";
cin >> choice;


system("pause");
system("cls");
break;

case '4' : cout << "Unassign room? (Y/N):";
cin >> choice;

while (toupper(choice) == 'Y' )
{
system("cls");
r1.printALL();
cout << "select a student(1-" << r1.studentsize() << "): ";
cin >> target;
target--;

cout << "input f for female/m for male :";
cin >> gender2;
if (gender2 =='m'||gender2=='M')
{
cout << "choose type A or B? :" ;
cin >> choice2;
cout<<endl;
if(choice2=='A'||choice2=='a')
{
a.unAssignMA(MAs);
a.delRoom(target);
}
else if(choice2=='B'||choice2=='b')
{
a.unAssignMB(MBs);
a.delRoom(target);
}
}
else if (gender2 =='f'||gender2=='F')
{
cout << "choose type A or B? :" ;
cin >> choice2;
cout<<endl;
if(choice2=='A'||choice2=='a')
{
a.unAssignFA(FAs);
a.delRoom(target);
}
else if(choice2=='B'||choice2=='b')
{
a.unAssignFB(FBs);
a.delRoom(target);
}
}

}

cout << "Assign more?(Y/N): ";
cin >> choice;
a.printALL();
system("pause");
system("cls");
break;

case '5' : r1.printALL();
system("pause");
system("cls");
break;

case '6' : done = true;
break;

}
}while(!done);

return 0;
}

i thinks it got problem with add and del function..

void room::addRoom(int target)
{
    string roomno;

    cout << "reinput the room no for student record= " ;
    cin>>roomno;
    students.push_back(students[target]);
	students[target]->setstatus(roomno);
	students.erase(students.begin()+target);
}
void room::delRoom(int target)
{
 	students[target]->setstatus("UNASSIGNED");
	students.push_back(students[target]);
	students.erase(students.begin()+target);
}
This article has been dead for over six months. Start a new discussion instead.