C program for fibonacci number using recursion

It input is 1 then it will return 1. I believe Fibonacci Series program is now clear to you. Also Prepare C interview programs given below. C Questions on number. Write a program to reverse an integer in C. Write a program in C to check whether an integer is Armstrong number or not.

Write a program in C to print the fibonacci series using recursive method. Write a program in C to check whether a number is palindrome or not using recursive method. C Questions on String. Write a method in C which will remove any given character from a String. Write a program in C to count occurrence of a given character in a String. The goto statement is a type of jump statement that is also known as an unconditional jump statement.

Within a function, it can be used to hop from one place to another. The steps are as follows:. Declare three variables as 0, 1, and 0 accordingly for a, b, and total. With the first term, second term, and the current sum of the Fibonacci sequence, use the fib method repeatedly. After the main function calls the fib function, the fib function calls itself until the Fibonacci Series N values are computed.

In each recursive call, update the values of a, b, and total as shown below:. Learning about the Fibonacci sequence gives a programmer an understanding on how to solve certain problems that require a solution from a base case.

This is also the reason why it is so famous and relevant in the programming world. Want to learn more about such interesting concepts and sharpen your programming skills by learning more advanced topics? This certification course provides training in almost 30 programming languages and tools and will help you get the mastery in multiple development skills required to become a full-stack developer and land an opportunity to work for the biggest companies in the software development world.

You can also explore our skill up courses platform where we offer numerous free courses in multiple programming languages to help you brush up and improve your coding skills. Trending now C New Line Article. What is Angular? Best Programming Languages to Learn in Article. AngularJS Vs. Angular 2 Vs. Angular 4: Understanding the Differences Article. In below program, we first takes the number of terms of fibonacci series as input from user using scanf function. We are using a user defined recursive function named 'fibonacci' which takes an integer N as input and returns the N th fibonacci number using recursion as discussed above.

The recursion will terminate when number of terms are In line number 17, we are calling this function inside a for loop to get the N th term of series. Recursive program to print fibonacci series is not so efficient because it does lots of repeated work by recalculating lower terms again and again. Now, while calculating fibonacci 4 it will again calculate fibonacci 3 which we already calculated while calculating fibonacci 5. We can solve this recalculation problem by memorizing the already calculated terms in an array.

In the below program, we are using an integer array named 'fibonacciArray' to store the already calculated terms of fibonacci series N th term of fibonacci series is stored at fibonacciArray[N-1].

To calculate the N th term we add the last two fibinacci elements N-1 and N-2 th element stored in array.