C Program for Fibonacci Series

/* A Fibonacci Sequence is defined as follows: the first and second terms in the sequence are 0 and 1. Subsequent 
terms are found by adding the preceding two terms in the sequence. Write a C program to generate
the first n terms of the sequence.
*/

#include <stdio.h>

void main()
{
int num1=0, num2=1,no,counter,fab;
clrscr();

printf("PROGRAM TO FIND THE FIBONACCI SERIES UP TO N NO. IN SERIES");
printf("\nENTER LENGTH OF SERIES (N) : ");
scanf("%d",&no);

printf("\nFIBONACCI SERIES");
printf("\t%d  %d",num1,num2);

//LOOP WILL RUN FOR 2 TIME LESS IN SERIES AS THESE WAS PRINTED IN ADVANCE
for(counter = 1; counter <= no-2; counter++)
{
fab=num1 + num2;
printf("  %d",fab);
num1=num2;
num2=fab;
}
getch();
}
/*
Output:
PROGRAM TO FIND THE FIBONACCI SERIES UP TO N NO. IN SERIES
ENTER LENGTH OF SERIES (N) : 5

FIBONACCI SERIES        0  1  1  2  3
*/