C Program to Print Star Pyramid Pattern

In this article we will show you, How to write a C Program to Print Star Pyramid Pattern with example. And also show you, How to print Pyramid Pattern (or Equilateral Triangle) with different symbols.

C Program to Print Star Pyramid Pattern using While Loop

This C program allows the user to enter the maximum number of rows he/she want to print as an Equilateral Triangle. Here, we are going to print the Pyramid of * symbols until it reaches the user specified rows.

CODE

/* C Program to Print Star Pyramid Pattern */

#include <stdio.h>

int main()

{

int Rows, i, j, k = 0;

printf("Please Enter the Number of Rows: ");

scanf("%d", &Rows);

printf("Printing Star Pyramid Pattern \n \n");

for ( i = 1 ; i <= Rows; i++ )

{

for ( j = 1 ; j <= Rows-i; j++ )

{

printf(" ");

}

while (k != (2 * i - 1))

{

printf("*");

k++;

}

k = 0;

printf("\n");

}

return 0;

}

OUTPUT

ANALYSIS

Let us see the Nested for loop

Outer Loop – First Iteration

From the above screenshot you can observe that, value of i is 1 and Rows is 10 so, the condition (i <= 10) is True. So, it will enter into second for loop

Inner For Loop – First Iteration

The j value is 1 and the condition (j <= 9) is True. So, it will start executing the statements inside the loop. So, it will start executing printf(” “) statement until the condition fails.

Inner While Loop – First Iteration

The k value is 0, and the condition k != 2*i – 1 (0 != 1) is True. So, it will start executing the statements inside the loop. So, it will start executing printf(“*”) statement until the condition fails.

Next, iteration will start from beginning until both the Inner Loops, and Outer loop conditions fails.