#include <iostream>

using namespace std;

int main ()
{
	const int MAXST = 5 ;  // Use whenever the size of an array is important           
	int i ;

	// Declaring and initializing an array : data type , name , size
	// Initialization is optional
	double store[MAXST] = { 1.2 , 4.5e+1 , 7.9 , -0.2 , 1100. } ;
	int help[3] = { 4 , 2 } ;   // Partial initialization
        char name[6] ;              // No initialization, 5 char long C-string
	char month[] = "June" ;     // month[] will be 6 bytes long !!!
	int friday = 17 ;

	cout << month[0] << endl ;
	cout << month << endl ;
	for ( i=0;i<=MAXST;i++ )  // Index of array starts with 0 (zero)
				  // Error : Should be i < MAXST, but error 
                                  // demonstrates how careful the programmer 
                                  // has to be.
	{
	   cout << "store[" << i << "]= " << store[i] << endl ;
	}

	for ( i=0;i<3;i++ )
	{  // Observe that help[2] has not been given a value as of yet.
	   // Hence, you never know what value it has.
	   cout << "help[" << i << "]= " << help[i] << endl ;
	}

	// Different ways to access array elements. Basically, whenever
	// you were using a simple variable in the past you could use
	// and array element. The index of an array element can be 
	// either an integer value, an integer variable or a mathematical
	// expression resulting in an integer value. 

	help[2] = friday ;    // help[2] carries now the value of friday = 17

	friday  = help[0] ;   // now friday has the value of help[0]=4

	i = 0 ;
	help[i+1] = ( help[2] + help[0] ) / 2 ;   // help[1] = .....

}