C Program to Print Pascal Triangle

In this tutorial you will learn about the C Program to Print Pascal Triangle and its application with practical example.

In this tutorial, we will learn to create a C program that will create Pascal Triangle using C programming.

Table Of Contents−

Prerequisites

Before starting with this tutorial we assume that you are best aware of the following C programming topics:

Operators in C Programming.

Basic Input and Output function in C Programming.
Basic C programming.
Basic arithmetic operations.

For loop in C Programming.

Create a Pascal Triangle:-

The C language is a very powerful programming language. In C programming we can perform many operations with the help of codings. The c language is very easy to create any pattern. In this program, we will learn to create pascal’s triangle with the help of some code.

The pascal’s triangle contains binomial coefficients.

Algorithm:-

STEP 1: START

STEP 2: first declare the variables

STEP 3: Take input from number of rows from the user.

STEP 4: then start the parent for loop

STEP 5: now make the child for loop 

STEP 6: in this child loop print the blank spaces 

STEP 7: now use another child loop to start drawing the pascals's triangle

STEP 8: Now this for loop will also execute under the parent for loop

STEP 9: Print "\n" for changing the line before the increment of the main loop

STEP 10: increment of the main for loop

STEP 11: return the zero value for main function

STEP 1: START

STEP 2: first declare the variables

STEP 3: Take input from number of rows from the user.

STEP 4: then start the parent for loop

STEP 5: now make the child for loop

STEP 6: in this child loop print the blank spaces

STEP 7: now use another child loop to start drawing the pascals's triangle

STEP 8: Now this for loop will also execute under the parent for loop

STEP 9: Print "\n" for changing the line before the increment of the main loop

STEP 10: increment of the main for loop

STEP 11: return the zero value for main function

Program:-

To Create a Pascal Triangle.

#include <stdio.h>
//factorial function
int fact(int no) {
    
   int f;
   
   for(f = 1; no > 1; no--)
      f *= no;
      
   return f;
}

int ncr(int no,int r) {
   return fact(no) / ( fact(no-r) * fact(r) );
}

int main()  
{
   //declaring variables
   int no, i, j;

   no = 5;
    //making the patterns
   for(i = 0; i<= no; i++) {
      for(j = 0; j<= no-i; j++)
         printf("  ");
         
      for(j = 0; j<= i; j++)
         printf(" %3d", ncr(i, j));

      printf("\n");
   }
   return 0;
}

#include <stdio.h>

//factorial function

int fact(int no) {

int f;

for(f = 1; no > 1; no--)

f *= no;

return f;

}

int ncr(int no,int r) {

return fact(no) / ( fact(no-r) * fact(r) );

}

int main()

{

//declaring variables

int no, i, j;

no = 5;

//making the patterns

for(i = 0; i<= no; i++) {

for(j = 0; j<= no-i; j++)

printf(" ");

for(j = 0; j<= i; j++)

printf(" %3d", ncr(i, j));

printf("\n");

}

return 0;

}

Output:-

In the above program, we have first initialized the required variable.

i = it will hold the integer value to control parent for loop.

j = it will hold the integer value to control child for loop.
k = it will hold the integer value to control child for loop.

Initializing the first parent for loop.

For Loop for factorial.

More C Programs

Learn

ABOUT PAGES

C Program to Print Pascal Triangle