C program to print plus star pattern + + + + +++++++++ + + + +

Programming Example

C program to print plus star pattern

    +
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+++++++++
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💻 Practical Program

📘 Step by Step Learning

Write a C program to print plus star pattern series using for loop. How to print plus star pattern series using loop in C program. Logic to print plus star pattern in C programming.

Program Code

/**
 * C program to print the plus star pattern series
* atnyla.com
 */

#include <stdio.h>

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

    printf("Enter N: ");
    scanf("%d", &N);

    // Run an outer loop from 1 to N*2-1
    for(i=1; i<=(N * 2 - 1); i++)
    {
        // For the center horizontal plus
        if(i == N)
        {
            for(j=1; j<=(N * 2 - 1); j++)
            {
                printf("+");
            }
        }
        else
        {
            // For spaces before single plus sign
            for(j=1; j<=N-1; j++)
            {
                printf(" ");
            }
            printf("+");
        }

        printf("\n");
    }

    return 0;
}

Output

Output
Enter N: 5
    +
    +
    +
    +
+++++++++
    +
    +
    +
    +

Explanation

Required knowledge

Basic C programming, If else, For loop, Nested loop

Logic to print plus star pattern

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Take a close look about the pattern and identify some noticeable things about it. Here are some.

The pattern consists of N * 2 - 1 rows.
When you look to the center horizontal plus line i.e. +++++++++ this line. It also consists of N * 2 - 1 columns.
For every other row, single plus symbol is printed after N - 1 blank spaces.

Based on the above observation let us write a C program to print plus star pattern.

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 plus star pattern
+ + + + +++++++++ + + + +