In this tutorial, i am going to show you how to print hollow star pyramid with the help of for loop and while loop in c programs.
All C Programs to Print Hollow Star Pyramid
- C Program to Print Hollow Star Pyramid using For Loop
- C Program to Print Hollow Star Pyramid using While Loop
C Program to Print Hollow Star Pyramid using For Loop
#include<stdio.h>
int main()
{
int i, j, rows;
printf("Enter Hollow Star Pyramid Rows = ");
scanf("%d", &rows);
printf("Hollow Star Pyramid Pattern\n");
for(i = 1; i <= rows; i++)
{
for(j = 1; j <= rows - i; j++)
{
printf(" ");
}
if(i == 1 || i == rows)
{
for(j = 1; j <= i * 2 - 1; j++)
{
printf("*");
}
}
else
{
for(j = 1; j <= i * 2 - 1; j++)
{
if(j == 1 || j == i * 2 - 1)
{
printf("*");
}
else
{
printf(" ");
}
}
}
printf("\n");
}
return 0;
}
The result of the above c program; as follows:
Enter Hollow Star Pyramid Rows = 5
Hollow Star Pyramid Pattern
*
* *
* *
* *
*********
C Program to Print Hollow Star Pyramid using While Loop
#include<stdio.h>
int main()
{
int i, j, rows;
char ch;
printf("Symbol to Print as Hollow Star Pyramid = ");
scanf("%c", & ch);
printf("Enter Hollow Star Pyramid Rows = ");
scanf("%d", &rows);
printf("Hollow Star Pyramid Pattern\n");
i = 1;
while( i <= rows)
{
j = 1;
while( j <= rows - i)
{
printf(" ");
j++;
}
if(i == 1 || i == rows)
{
j = 1;
while( j <= i * 2 - 1)
{
printf("%c", ch);
j++;
}
}
else
{
j = 1;
while(j <= i * 2 - 1)
{
if(j == 1 || j == i * 2 - 1)
{
printf("%c", ch);
}
else
{
printf(" ");
}
j++;
}
}
printf("\n");
i++;
}
return 0;
}
The result of the above c program; as follows:
Symbol to Print as Hollow Star Pyramid = *
Enter Hollow Star Pyramid Rows = 5
Hollow Star Pyramid Pattern
*
* *
* *
* *
*********