Printing Hollow pattern in CPP

Given N = no of rows and M = no of columns, print the hollow pattern.

**********
*	 *
*	 *
*	 *
**********

Given above is an example of hollow pattern of 5 x 10.

Given below is the approach to built hollow pattern:

1. To iterate through rows, run an outer loop from 1 to rows. Define a loop with structure for(i=1; i<=rows; i++)
2. To iterate through columns, run an inner loop from 1 to columns. Define loop with structure for(j=1; j<=columns; j++)
3. Inside this loop print star for first or last row or for first or last column, otherwise print blank space. Which is if(i==1 || i==rows || j==1 || j==columns) then print star otherwise space.
4. After printing all columns of a row, move to next line i.e. print new line after inner loop.

#include <bits/stdc++.h >
using namespace std;

// function to pritn hollow pattern 
void print(int rows, int columns)
{
	int i, j; /*Iterate over each row */
	for (i = 1; i <= rows; i++)
	{
		/*Iterate over each column */
		for (j = 1; j <= columns; j++)
		{
			if (i == 1 || i == rows || j == 1 || j == columns)
			{ /*Print star for 1st and last row, column */
				cout << ("*");
			}
			else
			{
				cout << (" ");
			}
		} /*Move to the next line */
		cout << ("\n");
	}
}	

// driver program to test the above function 
int main()
{
	int n = 5, m = 10;
	print(n, m);	// calls function to print hollow pattern return 0;
}

Output:

**********
*        *
*        *
*        *
**********

Time complexity : O(n* m)