Program to print the Fibonacci Series

Below is a program to print the Fibonacci series using while loop.

#include<stdio.h>
#include<conio.h>

void fibonacci(int num);
void main()
{
    int num = 0;
    clrscr();
    printf("Enter number of terms\t");
    scanf("%d", &num);
    fibonacci(num);
    getch();
}

void fibonacci(int num)
{
   int a, b, c, i = 3;
   a = 0;
   b = 1;
   if(num == 1)
   printf("%d",a);

   if(num >= 2)
   printf("%d\t%d",a,b);

   while(i <= num)
   {
      c = a+b;
      printf("\t%d", c);
      a = b;
      b = c;
      i++;
   }
}

Enter number of terms 6 0 1 1 2 3 5