C program to print reverse Pyramid star pattern ********* ******* ****

Programming Example

C program to print reverse Pyramid star pattern

 
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💻 Practical Program

📘 Step by Step Learning

Write a C program to print reverse Pyramid or reverse equilateral triangle star pattern series using for loop. How to print inverted pyramid or inverted equilateral triangle star pattern series in C program. Logic to print reverse pyramid star pattern series in C programming.

Program Code

/**
 * C program to print reverse pyramid star pattern 
* atnyla.com
 */

#include"stdio.h"

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

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

    for(i=1; i <= rows; i++)
    {
        /* Print leading spaces */
        for(j=1; j < i; j++)
        {
            printf(" ");
        }

        /* Print stars */
        for(j=1; j <= (rows*2 -(2*i-1)); j++)
        {
            printf("*");
        }

        /* Move to next line */
        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 reverse pyramid star pattern

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The above pattern has N (in this case 5) rows. Each row has exactly N * 2 - (i * 2 - 1) stars. In addition the pattern consists of leading spaces. For each row it contain i - 1 leading space (where i is current row number).

Step by step descriptive logic to print reverse pyramid star pattern.

Input number of rows to print from user. Store it in a variable say rows.
To iterate through rows, run an outer loop from 1 to rows. The loop structure should look like for(i=1; i <= rows; i++).
To print spaces, run an inner loop from 1 to i - 1. The loop structure should look like for(j=1; j < i; j++). Inside this loop print single space.
To print stars, run another inner loop from 1 to rows * 2 - (i * 2 - 1) . The loop structure should look like for(j=1; j <= (rows*2 - (i*2-1)); j++). Inside this loop print star.
After printing all stars for each row, move to next line i.e. print new line.

C++ Code


 /**
 * C program to print reverse pyramid star pattern 
 * atnyla.com
 */

#include<iostream>
using namespace std; 

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

    /* Input rows to print from user */
    cout << "Enter number of rows " ;
    cin >> rows ;

    for(i=1; i <= rows; i++)
    {
        /* Print leading spaces */
        for(j=1; j < i; j++)
        {
            cout << " " ;
        }

        /* Print stars */
        for(j=1; j <= (rows*2 -(2*i-1)); j++)
        {
            cout << "*" ;
        }

        /* Move to next line */
        cout << "\n" ;
    }

    return 0;
}

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 reverse Pyramid star pattern
***** * * * *

Program Code

Output

Explanation

Required knowledge

Logic to print reverse pyramid star pattern

C++ Code

How to learn from this program

Practice suggestion

Quick Practice Flow

Related Programs

C program to print reverse Pyramid star pattern ********* ******* ***** *** *

Program Code

Output

Explanation

Required knowledge

Logic to print reverse pyramid star pattern

C++ Code

How to learn from this program

Practice suggestion

Quick Practice Flow

Related Programs

C program to print reverse Pyramid star pattern
***** * * * *