C program to print reverse right triangle star pattern

Write a C program to print inverted right triangle star pattern series using for loop. How to print inverted right triangle star pattern series of n rows in C programming. Logic to print inverted right triangle star pattern in C programming.

Example

Input

Input rows: 5

Output

Required knowledge

Basic C programming, For loop, Nested loop

Logic to print inverted right triangle star pattern

The above pattern contains N rows and each row contains N-i + 1 columns (where i is the current row number). Considering this let us write a step by step descriptive logic to print inverted right triangle star patter.

  1. Input number of rows to print from user. Store it in a variable say rows.
  2. To iterate through rows run an outer loop from 1 to rows. The loop structure should look like for(i=1; i<=rows; i++).
  3. To iterate through columns run an inner loop from i to rows. The loop structure should look like for(j=i; j<=rows; j++). Inside this loop print star.

    Note: Instead of iterating from i to rows you can also iterate from 1 to rows - i + 1.

  4. After printing all columns of a row, move to next line i.e. print new line.

Also learn - Program to print right triangle star pattern.

Program to print inverted right triangle star pattern

/**
 * Reverse right triangle star pattern program in C
 */

#include <stdio.h>

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

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

    /* Iterate through rows */
    for(i=1; i<=rows; i++)
    {
        /* Iterate through columns */
        for(j=i; j<=rows; j++)
        {
            printf("*");
        }
       
        /* Move to the next line */
        printf("\n");
    }

    return 0;
}

Output

Enter number of rows: 5
*****
****
***
**
*

Happy coding 😉

About Pankaj

Pankaj Prakash is the founder, editor and blogger at Codeforwin. He loves to learn new techs and write programming articles especially for beginners. He works at Vasudhaika Software Sols as a Software Design Engineer and manages Codeforwin. In short Pankaj is Web developer, Blogger, Learner, Tech and Music lover.

Follow on: Facebook | Twitter | Google | or

Comments and discussion
Have a doubt, write here. I will help my best.
Before commenting you must escape your source code before commenting. Paste your source code inside
<pre><code> ----Your Source Code---- </code></pre>