Write a C program to print fibonacci series. In this tutorial, We'll write a c program to print fibonacci series using while, do while and for loop.

In Fibonacci series, The first two numbers are 0 and 1, and each subsequent numbers are the sum of previous two numbers.
For example- 0 1 1 2 3 5 8 13 ............

So first two numbers are 0 and 1, next number 1 is the sum of 0 + 1. Similarly, 2 is the sum of 1 + 1 and so on.

Interview Questions For Practice

C Program to Print Fibonacci Series using Recursion

Fibonacci Series is

0 1 1 2 3 5

C Program to print factorial of a number

C Program to reverse a number

In this example, we write to code to print Fibonacci series using do while loop.

In this tutorial, I have explained how to print Fibonacci series using multiple code examples. If you have any doubt you can ask them through your comments.

### What is Fibonacci series?

So first two numbers are 0 and 1, next number 1 is the sum of 0 + 1. Similarly, 2 is the sum of 1 + 1 and so on.

Interview Questions For Practice

C Program to Print Fibonacci Series using Recursion

## C Program to Print Fibonacci Series using For Loop

#include <stdio.h> int main() { int i, n, first=0, second=1, third; printf("How many elements you want to print in a series \n"); scanf("%d",&n); /* First and second number of a Fibonacci series It is always 0 and 1 */ printf("Fibonacci Series is \n"); printf(" %d %d ",first ,second); for(i = 2; i < n; i++){ /* Each subsequent number is the sum of previous two numbers */ third = first + second; printf(" %d ",third); first = second; second = third; } return 0; }

**Output :****How many elements you want to print in a series 6**

Fibonacci Series is

0 1 1 2 3 5

C Program to print factorial of a number

C Program to reverse a number

## C Program to Print Fibonacci Series using While Loop

We have written a code to print Fibonacci series using for loop. In this example, We are going to write a C program to print Fibonacci series using while loop.#include <stdio.h> int main() { int n, first=0, second=1, third; printf("How many elements you want to print in a series \n"); scanf("%d",&n); /* First and second number of a Fibonacci series It is always 0 and 1 */ printf("Fibonacci Series is \n"); printf(" %d %d ",first ,second); /* First two elements of a fibonacci series is printed start printing number from index 2 */ int i = 2; //While loop while (i < n){ /* Each subsequent number is the sum of previous two numbers */ third = first + second; printf(" %d ",third); first = second; second = third; //Increment the value of i i++; } return 0; }

## C Program to Print Fibonacci Series using Do While Loop

In this example, we write to code to print Fibonacci series using do while loop.

#include <stdio.h> int main() { int n, first=0, second=1, third; printf("How many elements you want to print in a series \n"); scanf("%d",&n); /* First and second number of a Fibonacci series It is always 0 and 1 */ printf("Fibonacci Series is \n"); printf(" %d %d ",first ,second); /* First two elements of a fibonacci series is printed start printing number from index 2 */ int i = 2; //Do while loop logic do { /* Each subsequent number is the sum of previous two numbers */ third = first + second; printf(" %d ",third); first = second; second = third; //Increment the value of i i++; } while (i < n); return 0; }

In this tutorial, I have explained how to print Fibonacci series using multiple code examples. If you have any doubt you can ask them through your comments.

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