FIBONACCI SERIES

#include <stdio.h>

void main()
{
int oldnum=0;
int newnum=1;
int fibnum;
int n;
printf("Till where do u want to print the series??\n");
scanf("%d",&n);
printf("%d\n%d\n",oldnum,newnum);
while(fibnum<=n)
{
printf("%d\n",fibnum);
oldnum=newnum;
newnum=fibnum;
fibnum=oldnum+newnum;
}
}