Fibonacci series in c language

Fibonacci series in c programming: c program for Fibonacci series without and with recursion. Using the code below you can print as many numbers of terms of series as desired. Numbers of Fibonacci sequence are known as Fibonacci numbers. First few numbers of series are 0, 1, 1, 2, 3, 5, 8 etc, Except first two terms in sequence every other term is the sum of two previous terms, For example 8 = 3 + 5 (addition of 3, 5). This sequence has many applications in mathematics and Computer Science.

Note:Fibonacci series can have first two terms as 0,1 or 1,1.

I have posted program for o,1.if you want to make it for 1,1 then change variable first=1;in this program,  remaining thing will be same.

//source code//

/* Fibonacci Series c language */
#include
 
int main()
{
   int n, first = 0, second = 1, next, c;
 
   printf("Enter the number of terms\n");
   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("%d\n",next);
   }
 
   return 0;
}

Output:

 Program to generate Fibonacci series using recursion in c

#include

void printFibonacci(int);

int main(){

    int k,n;

    long int i=0,j=1,f;

    printf("Enter the range of the Fibonacci series: ");

    scanf("%d",&n);

    printf("Fibonacci Series: ");

    printf("%d %d ",0,1);

    printFibonacci(n);

    return 0;

}

void printFibonacci(int n){

    static long int first=0,second=1,sum;

    if(n>0){

         sum = first + second;

         first = second;

         second = sum;

         printf("%ld ",sum);

         printFibonacci(n-1);

    }

}

Sample output:

Enter the range of the Fibonacci series: 10

Fibonacci Series: 0 1 1 2 3 5 8 13 21 34 55 89