Stimulating a dice roll in C++ (using dynamic arrays)

#include <iostream>
using std::cout;
using std::ios;

#include <iomanip>
using std::setw;
using std::setprecision;
using std::fixed;
using std::showpoint;

#include <cstdlib>
using std::rand;
using std::srand;

#include <ctime>
using std::time;

int main()
{
const long ROLLS = 36000;
const int SIZE = 13;

// array expected contains counts for the expected
// number of times each sum occurs in 36 rolls of the dice
/* Write a declaration of array exprected here. Assign an
initializer list containing the expected values here. Use
SIZE for the number of elements */
int x; // first die
int y; // second die
/* Write declaration for the array sum here. Initialize all
elements to zero. Use SIZE for the number of elements */

srand( time( 0 ) );

// roll dice 36,000 times
/* Write a for statement that iterates ROLL times.

Randomly
generate values for x (i.e., die1) and (i,e, die2)
and increment the appropriate counter in array sum that
corresponds to the sum of x and y */

cout << setw( 10 ) << "Sum" << setw( 10 ) << "Total" << setw( 10 )
<< "Expected" << setw( 10 ) << "Actualn" << fixed << showpoint;


// display results of rolling dice
for ( int j = 2; j < SIZE; j++ )
cout << setw( 10 ) << j << setw( 10 ) << sum[ j ]
<< setprecision( 3 ) << setw( 9 )
<< 100.0 * expected[ j ] / 36 << "%" << setprecision( 3 )
<< setw( 9 ) << 100.0 * sum[ j ] / 36000 << "%n"


return 0; // indicates successful completion
} // end main.