C Program to Print Pyramid Pattern of Stars | codeitwise

Here we are going to write a c program to print pyramid pattern of stars. We will take number of rows input from the user so as to make our program user interactive. Star Pattern in C that we are going to print is given below - 

Pattern - 

*

*  *  

*  *  *

*  *  *  *

*  *  *  *  *

C Program to Print Pyramid Pattern of Stars - 

#include <stdio.h>
int main()
{
    int n;
    printf("Enter number of rows: ");
    scanf("%d", &n);
    for(int i=1; i<=n; i++)
    {
        for(int j=1; j<=i; j++)
        {
             printf("* ");
        }
        printf("\n");
    }
    return 0;
}

Output - 

Enter number of rows: 5

*
* *
* * *
* * * *
* * * * *

Explanation of C Program to Print Pyramid Pattern of Stars -

First we are taking number of rows input from the user. Then running a nested loop to print out required pattern.

Nested loop algorithm -

Suppose n=5.

When i=1 , j=1 to 1 (as j<=i and i=1) so * will be printed.

When i=2, j=1 to 2 (as j<=i and i=2) so * * will be printed. 

When i=3, j=1 to 3 (as j<=i and i=3) so * * * will be printed. 

When i=4, j=1 to 4 (as j<=i and i=4) so * * * *  will be printed. 

When i=5, j=1 to 5 (as j<=i and i=5) so * * * * *  will be printed. 

So at the end the result that we are going to see on the screen is

*

*  *  

*  *  *

*  *  *  *

*  *  *  *  *

Here after each j's loop the numbers are getting printed in next line because we are printing a new line after each j's loop i.e., this printf("\n")  statement print new line.

Related Programs -

C Program to Print Pyramid Pattern of Numbers

C Program to Print Inverted Pyramid Pattern of Numbers

C++ Program to Print Pyramid of Numbers