Fabonacci Series

By: adarshsojitra on 19:29

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This program will print Fibonacci series.it will print number of terms as per user wants.the sample Fibonacci series is as following:

1,1,2,3,5,8,13,21.......

Logic: 1,1,1+1,1+2,2+3,3+5......it means that the next term of the series is the addition of the last two terms.  
Program:

#include<stdio.h>
#include<conio.h>
main()
{
    unsigned long int a,b,c,ans,i;
    clrscr(); 
    printf("=====Fabonicci series=====");
    printf("\n\n!!!!!You can calculate correctly till 47 terms!!!!!");
    printf("\n\nEnter number: ");
    scanf("%ld",&ans);
    i=1;
    a=0;
    b=1;
    while(i<=ans)
    {
         printf(", %ld",a);
         c=a+b;
         a=b;
         b=c;
         i=i+1;
    }
    getch();
}