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.
/* 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;
}
Let us see the Nested for loop
Outer Loop – First Iteration
From the above C Programming screenshot, you can observe that the 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(“*”) statements until the condition fails.
Next, iteration will start from the beginning until both the Inner Loops and Outer loop conditions fail.
C Program to Print Star Pyramid Pattern using For Loop
In this C program, we just replaced the While Loop with the For Loop. I suggest you refer For Loop article to understand the logic.
/* C Program to Print Star Pyramid Pattern */
#include <stdio.h>
int main()
{
int Rows, i, j, k;
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(" ");
}
for (k = 1; k <= (2 * i - 1); k++)
{
printf("*");
}
printf("\n");
}
return 0;
}
Please Enter the Number of Rows: 12
Printing Star Pyramid Pattern
*
***
*****
*******
*********
***********
*************
***************
*****************
*******************
*********************
***********************C Program to display Star Pyramid Pattern
This C program to print star pyramid 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.
/* C Program to Print Pyramid Pattern */
#include <stdio.h>
int main()
{
int Rows, i, j, k = 0;
char ch;
printf("Please Enter any Symbol : ");
scanf("%c", &ch);
printf("Please Enter the Number of Rows: ");
scanf("%d", &Rows);
printf("Printing Pyramid Pattern \n \n");
for ( i = 1 ; i <= Rows; i++ )
{
for ( j = 1 ; j <= Rows-i; j++ )
{
printf(" ");
}
while (k != (2 * i - 1))
{
printf("%c", ch);
k++;
}
k = 0;
printf("\n");
}
return 0;
}
Please Enter any Symbol : $
Please Enter the Number of Rows: 12
Printing Pyramid Pattern
$
$$$
$$$$$
$$$$$$$
$$$$$$$$$
$$$$$$$$$$$
$$$$$$$$$$$$$
$$$$$$$$$$$$$$$
$$$$$$$$$$$$$$$$$
$$$$$$$$$$$$$$$$$$$
$$$$$$$$$$$$$$$$$$$$$
$$$$$$$$$$$$$$$$$$$$$$$