magic square

Good morning,
I'm having trouble trying to debug my magic square program. Here is my code:

Code:

---

#include <cstdlib>
#include <iostream>
#include <iomanip>

using namespace std;

int main()
{
int *userNum,
    row,
    col,
    number,
    i,
    j,
    k,
    newRow,
    newCol,
    magic[250][250];

    userNum = new int;

cout << "Please enter a positive odd integer with a value 3 or more: ";
cin  >> *userNum;

//********** check to see if my square is an odd integer that's 3 =< x <= 250
while (1)
{
        if (*userNum >= 3 && *userNum <= 250 && *userNum %2 == 1)
        {
                break;
        }
        else
        {
                cout << "Please enter a positive odd integer with a value 3 or more: ";
                cin >> *userNum;
        }
}
cout << "\n\n";

//******** initializes all matrices to 0
for (i = 0; i < *userNum; i++)
{
        for (j = 0; j < *userNum; j++)
        {
                magic[i][j] = 0;
        }
}

        row = 0;
        col = (*userNum / 2);
        number = 1;
        magic[row][col] = number;

//******* conditions for set matrices
for (number = 2; number <= (*userNum) * (*userNum); number++)
{
        newRow = row - 1;
        newCol = col + 1;

        if (newRow < 0)
        {
                newRow = *userNum - 1;
               
                if (newCol == *userNum)
                {
                        newCol = 0;
                }
        }

        if (magic[newRow][newCol] != 0)
        {
                newRow = row + 1;
        }

        magic[newRow][newCol] = number;
}


//******** prints out results
k = 0;
for (i = 0; i < *userNum; i++)
{
        for(j = 0; j < *userNum; j++)
        {
                if(*userNum <= 250 && *userNum >= 100)
                {
                        cout << setw(7) << magic[i][j];
                        k++;
                        if(k = *userNum)
                        {
                        cout << endl;
                        }
                }

                if(*userNum <= 99 && *userNum >= 32)
                {
                        cout << setw(6) << magic[i][j];
                        k++;
                        if(k = *userNum)
                        {
                        cout << endl;
                        }
                }

                if(*userNum <= 31 && *userNum >= 10)
                {
                        cout << setw(5) << magic[i][j];
                        k++;
                        if(k = *userNum)
                        {
                        cout << endl;
                        }
                }

                else
                {
                        cout << setw(4) << magic[i][j];
                        k++;
                        if(k = *userNum)
                        {
                        cout << endl;
                        }
                }
}

    system("PAUSE");
    return EXIT_SUCCESS;
}

}

---

When I compile and execute this I get,

Code:

---

Please enter a positive odd integer with a value of 3 or more: 9

0
0
0
0
1
0
0
0
0

---

any clue as to what is the problem?

much appreciated.

I can see places where you use =, where == would be better.

Can you explain why userNum is a pointer?
It seems to be an entirely pointless pointer.

You might also want to break this into functions, like
- input
- solve
- display

As opposed to having one long rambling main()