C program to print square or rectangle star pattern ***** ***** *****

Programming Example

C program to print square or rectangle star pattern

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💻 Practical Program

📘 Step by Step Learning

Write a C program to print square star(*) pattern series of N rows. C program to print rectangle star(*) pattern in C of N rows and M columns. Logic to print square or rectangle star pattern of N rows in C programming.

Example

Input

Input number of rows: 5

Output

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Program Code

/**
 * C program to print square star pattern
 */

#include <stdio.h>

int main()
{
    int i, j, N;

    /* Input number of rows from user */
    printf("Enter number of rows: ");
    scanf("%d", &N);

    /* Iterate through N rows */
    for(i=1; i<=N; i++)
    {
        /* Iterate over columns */
        for(j=1; j<=N; j++)
        {
            /* Print star for each column */
            printf("*");
        }
        
        /* Move to the next line/row */
        printf("\n");
    }

    return 0;
}

Output

Enter number of rows: 5
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Explanation

Required knowledge

Basic C programming, For loop, Nested loop

Logic to print square star pattern

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Have a close look to the pattern for a minute so that you can think a little basic things about the pattern.

The pattern is a matrix of N rows and columns containing stars(asterisks). Here, you need to iterate through N rows, and for each row iterate for N columns.

Step by step descriptive logic to print the square number pattern.

Input number of rows from user. Store it in some variable say N.
To iterate through rows, run an outer loop from 1 to N. The loop structure should be similar to for(i=1; i<=N; i++).
To iterate through columns, run an inner loop from 1 to N. Define a loop inside above loop with structure for(j=1; j<=N; j++).
Inside inner loop print *.
After printing all columns of a row move to next line i.e. print a new line.

How to learn from this program

First read the algorithm, then study the program code line by line. After that, compare the code with the output and finally go through the explanation. This approach helps learners understand both the logic and the implementation properly.

Practice suggestion

After understanding this example, try to rewrite the same program without looking at the code. Then change some values or logic and run it again. This helps improve confidence and keeps learners engaged on the page for longer.

C program to print square or rectangle star pattern
*** * * * ***

Program Code

Output

Explanation

Required knowledge

Logic to print square star pattern

How to learn from this program

Practice suggestion

Quick Practice Flow

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C program to print square or rectangle star pattern***** ***** ***** ***** *****

Program Code

Output

Explanation

Required knowledge

Logic to print square star pattern

How to learn from this program

Practice suggestion

Quick Practice Flow

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C program to print square or rectangle star pattern
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