Drawing Pascal’s Triangle and Floyd’s Triangle using C Program

Introduction

The C programming language is a procedural programming language. Between 1969 and 1973, Dennis Ritchie worked on the project. It was created primarily as a system programming language for developing operating systems.

In this tutorial we are going to learn to draw or print Pascal’s Triangle and Floyd’s Triangle using C programming language.

In order to understand the code given below you’ve got to have prior knowledge and or understanding of the following topics:

• C for Loop
• C if…..else Statements
• C while Loop
• C break and continue

If you have a sound knowledge and understanding of what the functions of the concepts are then there will be no difficulty in understanding the given codes for Pascal’s Triangle and Floyd’s Triangle in c programming language. With all that said lets get coding!

Pascal’s Triangle

#include <stdio.h>
#include <stdlib.h>
#include <conio.h>

int main() {
   int rows, coef = 1, space, i, j;
   printf("Enter the number of rows: ");
   scanf("%d", &rows);
   for (i = 0; i < rows; i++) {
      for (space = 1; space <= rows - i; space++)
         printf("  ");
      for (j = 0; j <= i; j++) {
         if (j == 0 || i == 0)
            coef = 1;
         else
            coef = coef * (i - j + 1) / j;
         printf("%4d", coef);
      }
      printf("\n");
   }
   return 0;
}

Output for Pascal’s Triangle

Floyd’s Triangle

#include <stdio.h>
#include <stdlib.h>
#include <conio.h>

int main() {
   int rows, i, j, number = 1;
   printf("Enter the number of rows: ");
   scanf("%d", &rows);
   for (i = 1; i <= rows; i++) {
      for (j = 1; j <= i; ++j) {
         printf("%d ", number);
         ++number;
      }
      printf("\n");
   }
   return 0;
}

Output for Floyd’s Triangle