Pattern Question ( hollow rectangle pattern in c++ ) with source code and small explanation 02 || Print pattern using c++ with 5 rows and 4 columns

 Here is the pattern that I am going to print using  c plus c plus , you can check algorithm and code as well in below of the image.

1. include header file iostream
2. using namespace std : which show we took thing under standard or std
3. main() function - starting poin
4. declared variable along with datatype
5. take input using cin , input is a
6. used endl for line break
7. again take input using cin , input is b
8. use for loop for rows and it goes to till a
9. again use for loop for column it goes to till b
10. apply if statement that  a is total rows in the pattern and b is total column in the pattern so at the first and last position of the row and column we print starts (*)  else print space.
11. i == 1 checks first row , i == a checks last row and j == 1 checks first column and j == b checks last column where we have to print stars
12. after the column loop  or inner loop which goes till 'j' , we add line break so other rows can be print.
13. that's all !

You can copy this code as well !

#include <iostream>

using namespace std;

int main(){

    int a , b;

    cin>>a;

    cout<<endl;

    cin>>b;

    for (int i = 1; i <= a; i++)

    {

        for (int j = 1; j <= b; j++)

        {

            if(i == 1  || i == a || j == 1 || j == b){

                cout<<"*";

            }else{

                cout<<" ";

            }      

        }

        cout<<endl;

    }

       

}