C Program to Print Mirrored Right Triangle Star Pattern

How to write a C Program to Print Mirrored Right Triangle Star Pattern with example?. And also show you how to print Mirrored Right Triangle Pattern with different symbols.

C Program to Print Mirrored Right Triangle Star Pattern

This C program allows the user to enter the maximum number of rows he/she want to print as a Mirrored Right Triangle. We are going to print the * symbols until it reaches the user-specified rows.

/* C Program to Print Mirrored Right Triangle Star Pattern */
#include <stdio.h>
 
int main() 
{
  int Rows, i, j;
	
  printf("Please Enter the Number of Rows:  ");
  scanf("%d", &Rows);
	
  printf("\nPrinting Mirrored Right Triangle Increasing Star Pattern \n");
  for ( i = 1 ; i <= Rows; i++ ) 
  {
      for ( j = 1 ; j <= Rows; j++ ) 
      {
      	if(j <= Rows-i)
      	{
          printf(" ");
	}
	else
	{
	  printf("*");		  	
	}         
      }
      printf("\n");
  }
  return 0;
}

Let us see the Nested for loop

Outer Loop – First Iteration

From the above C Programming image, you can observe that the value of i is 1 and Rows is 6 so, the condition (i <= 6) is True. So, it will enter into second for loop

Inner Loop – First Iteration: The j value is 1 and the condition (j <= 6) is True. So, it will start executing the statements inside the loop. It means the compiler will enter into the If Statement. Here, we are checking whether j <= Rows-i (1 <= 5) . If this condition is true, then printf(” “) will be executed. Otherwise, printf(“*”) will execute.

It happens until the condition inside the inner for loop fails. Next, iteration will start from the beginning until both the Inner Loop and Outer loop conditions fail.

C Program to Print Mirrored Right Triangle Pattern

This program allows the user to enter the Symbol and number of rows he/she want to print. It means, instead of printing pre-defined stars, it allows the user to enter their own character.

#include <stdio.h>
 
int main() 
{
  int Rows, i, j;
  char Ch;
  
  printf("Please Enter any Symbol :   ");
  scanf("%c", &Ch);  
	
  printf("Please Enter the Number of Rows:  ");
  scanf("%d", &Rows);
	
  printf("\nPrinting Mirrored Right Triangle Increasing Star Pattern \n");
  for ( i = 1 ; i <= Rows; i++ ) 
  {
      for ( j = 1 ; j <= Rows; j++ ) 
      {
      	if(j <= Rows-i)
      	{
      	  printf(" ");
	}
	else
	{
	  printf("%c", Ch);		  	
	}         
      }
      printf("\n");
  }
  return 0;
}

Please Enter any Symbol :   $
Please Enter the Number of Rows:  9

Printing Mirrored Right Triangle Increasing Star Pattern 
        $
       $$
      $$$
     $$$$
    $$$$$
   $$$$$$
  $$$$$$$
 $$$$$$$$
$$$$$$$$$

C Program for Mirrored Right Triangle Star Pattern using While Loop

In this C program to return mirrored right triangle star pattern, we just replaced the For Loop with the While Loop. I suggest you refer While Loop article to understand the logic.

#include <stdio.h>
 
int main() 
{
  int Rows, i = 1, j;
  char Ch;
  
  printf("Please Enter any Symbol :   ");
  scanf("%c", &Ch);  
	
  printf("Please Enter the Number of Rows:  ");
  scanf("%d", &Rows);
	
  printf("\nPrinting Mirrored Right Triangle Increasing Star Pattern\n");
  while ( i <= Rows) 
  {
      for ( j = 1 ; j <= Rows; j++ ) 
      {
      	if(j <= Rows-i)
      	{
     	  printf(" ");
	}
	else
	{
	  printf("%c", Ch);		  	
	}         
      }
      printf("\n");
      i++;
  }
  return 0;
}

Please Enter any Symbol :   *
Please Enter the Number of Rows:  11

Printing Mirrored Right Triangle Increasing Star Pattern
          *
         **
        ***
       ****
      *****
     ******
    *******
   ********
  *********
 **********
***********