• Fibonacci Sequence C Programming
• Fibonacci Program Python
• C++ Code For Fibonacci Sequence
• Fibonacci Numbers Website
• Fibonacci Sequence C Program

Fibonacci series in C using a loop and recursion. You can print as many terms of the series as required. The numbers of the sequence are known as Fibonacci numbers.

Fibonacci series in C using a loop and recursion.You can print as many terms of the series as required. The numbers of the sequence are known as Fibonacci numbers. Fibonacci Series Program In C. Fibonacci Series generates subsequent number by adding two previous numbers. Fibonacci series starts from two numbers − F 0 & F 1. The initial values of F 0 & F 1 can be taken 0, 1 or 1, 1 respectively. Time Complexity: T(n) = T(n-1) + T(n-2) which is exponential. We can observe that this implementation does a lot of repeated work (see the following recursion tree). So this is a bad implementation for nth Fibonacci number.

The first few numbers of the series are 0, 1, 1, 2, 3, 5, 8, ..., except for the first two terms of the sequence, every other is the sum of the previous two, for example, 8 = 3 + 5 (sum of 3 and 5).

Fibonacci series program in C

int main()
{
int n, first =0, second =1, next, c;

Fibonacci Sequence C Programming

printf('Enter the number of termsn');
scanf('%d',&n);

printf('First %d terms of Fibonacci series are:n', n);

for(c =0; c < n; c++)
{
if(c <=1)
next = c;
else
{
next = first + second;
first = second;
second = next;
}
printf('%dn', next);
}

return0;
}

Output of program:

Fibonacci series C program using recursion

int f(int);

Fibonacci Program Python

int main()
{
int n, i =0, c;

scanf('%d',&n);

printf('Fibonacci series terms are:n');

for(c =1; c <= n; c++)
{
printf('%dn', f(i));
i++;
}

C++ Code For Fibonacci Sequence

return0;
}

Fibonacci Numbers Website

int f(int n)
{
if(n 0|| n 1)
return n;
else
return(f(n-1)+ f(n-2));
}

The recursive method is less efficient as it involves repeated function calls that may lead to stack overflow while calculating larger terms of the series.

Fibonacci Sequence C Program

Using Memoization (storing Fibonacci numbers that are calculated in an array and using it for lookup), we can reduce the running time of the recursive algorithm. The series has many applications in Mathematics and Computer Science.