C Program to Print Hollow Square Star Pattern

C Program 

Q. C Program to Print Hollow Square  Star Pattern 

Example

#include <stdio.h>

int main()

{

   int i, j, N;

 

   printf("Enter number of rows: ");

   scanf("%d", &N);

   for(i=1; i<=N; i++)

   {

   

       for(j=1; j<=N; j++)

       {

           if(i==1 || i==N || j==1 || j==N)

           {

             

               printf("*");

           }

           else

           {

               printf(" ");

           }

       }

     

       printf("\n");

   }

   return 0;

}

C Program to Print Hollow Square  Star Pattern

Explain Program

Step :1

#include <stdio.h>

Standards Input Output library,  printf and scanf.

 Step :2

int main()

 entry point of the program.

i for iterating through rows,

 j for iterating through columns,

 N for the size of the square (number of rows and columns).

 Step :3

printf("Enter number of rows: ");

scanf("%d", &N);

 user to input a number (N), which defines the dimension of the square.

square will have N rows and N columns.

 Step :4

Outer Loop: 
Rows
for(i=1; i<=N; i++)
loop run from 1 to N (inclusive) to handlerow.

Step :5

Inner Loop:

 Columns

for(j=1; j<=N; j++)

 loop runs for each column within a row (again from 1 to N).

Step :6

Logic to Print the Border

if(i==1 || i==N || j==1 || j==N)

condition check current cell border of the square:

 First row: i == 1

 Last row: i == N

First column: j == 1

 Last column: j == N

 condition is true:

Step :7

printf("*");

Print an asterisk (*).

Step :8

printf(" ");

Print a space ( ) to create the hollow center.

Step :9

printf("\n");

After finishing row, move to the next line.

Step :10

 return 0;

 program finished successfully

Q. C Program to Print Hollow Square  Star Pattern

OutPut :-

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