Write a C-program to show first n Fibonacci and Non-Fibonacci numbers

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

void main()
{
int a=0,b=1,i,j,k,n;
clrscr();
printf("\n Enter the range: ");
scanf("%d",&n);
printf("\n Fibonacci series: ");
for(i=0;i<n;i++)
{
printf("%d\t",a);
j=a+b;
a=b;
b=j;
}
printf("\n Non-fibonacci series: ");
a=0,b=1;
for(i=0;i<n;)
{
j=a+b;
a=b;
b=j;
for(k=a+1;k<j;k++,i++)
if(i<n)
printf("%d\t",k);
}
getch();
}