/******************************************************

** Name:

** Filename: hollowsquare.cpp

** Project #: Deitel & Deitel 2.28

** Project Description: Write a program that reads in the size of
	a square and then prints a hollow square of that size out of 
	asterisks and blanks. Program should work for squares of all 
	side sizes between 1 and 20.

** Output: A square with equal sides and hollow with blank spaces
	in the center of the square.
	


** Input:
	Size of the sides of a square

** Algorithm:
	Input size of side of square
	Run a loop to print number of rows and columns input
	Print character at beginning and end of rows and columns
	Print blanks in the middle of rows and columns
	End programs

******************************************************/

// Include files
#include <iostream>  // used for cin, cout
#include <conio.h>
using namespace std;

// Global Type Declarations

// Function Prototypes
void instruct (void);
void pause ();


//Global Variables - should not be used without good reason.

int main ()
{
	 // Declaration section
	int size,x,y;

	// Executable section
	 instruct ();
     cout << "Enter the size of a side of the square: ";
	 cin >> size ;
	 
	 {  for ( x = 1; x <= size; x++ ) 
		{for ( y = 1; y <= size; y++ ) 
		{if ( x == 1 || x == size ) 
              cout << "*";          
          else if ( y == 1 || y == size )
			  cout << "*";
		  else 
			  cout << " ";
     
	 }
	 cout << endl;
	 }
 }

	 
	 

  
    
	pause ();
	return 0;
	 
}

void instruct (void)
{
	  // Declaration section

	  // Executable section
 cout << "The following program will print a hollow square using the\n"
	  << "size that is input below. The size must be a number between\n" 
	  << "1 and 20.\n "<< endl;

}

void pause ()
{
    // Declaration section

    // Executable section
    cout << "\nPress any key to continue...";
    getch();
    cout << "\r";
    cout << "                            ";
    cout << "\r";
}




/*
Program Output

The following program will print a hollow square using the
size that is input below. The size must be a number between
1 and 20.

Enter the size of a side of the square: 12
************
*          *
*          *
*          *
*          *
*          *
*          *
*          *
*          *
*          *
*          *
************

Press any key to continue...


*/