Write a C program which checks a given integer is Fibonacci or not

Write a C program which checks a given integer is Fibonacci or not

Program:

#include<stdio.h>

#include<conio.h>

int main()

{

 int a,b,c,next,num;

 printf("Enter any number: ");

 scanf("%d", &num);

 if((num==0)||(num==1))

   printf("\n%d is a Fibonacci term",num);

 else

 {

   a=0;

   b=1;

   c=a+b;

   while(c<num)

   {

     a=b;

     b=c;

     c=a+b;

   }

   if(c==num)

     printf("\n%d is a Fibonacci term",num);

   else

     printf("\n%d is not a Fibonacci term",num);

 }

 getch();

 return 0;

}