C Program to Implement Fibonacci Series

#include<stdio.h>
 
int main()
{
int n;					//Variable to store no of terms
int first=0;			        //First term initializing with zero as value
int second=1;				//second term initializing with one as its value
int next;				//used to store the next value of series by summing up previous terms
int i;					//condition initialisor 
 
   printf("Enter the number of termsn");
   scanf("%d",&n); 				//accepting value for variable n
 
   printf("First %d terms of fibonacci series are :-n",n);
 
   for (i=0;i<n;i++)				//loop starts and continues till counter is equal to the no of terms
   {
      if (i<=1)					//condition if i is <=1 then next value = 1
         next=i;				
      else					//next=sum of previous two terms
      {
         next = first + second;
         first = second;			//swapping the value of first and second
         second = next;				//seconf value goes to next
      }
      printf("%dn",next);
   }
 
   return 0;
}

#include<stdio.h>
main()
{
long num;
printf("Enter Number of terms n");
scanf("%ld",&num);
long i=0;
long firstterm=0;
long secterm=1;
long nexterm;
while(i<num)
{
if (i<=1)
nexterm=i;
else
nexterm=firstterm+secterm;
printf("%ld n",nexterm);
firstterm=secterm;
secterm=nexterm;
i++;
}
}