C program to find armstrong number within a range

Aim: Find the Armstrong numbers within a given range using C.

#include<stdio.h>
#include<conio.h>
void main()
{
	int i,n,d;
	long lb,ub,p,s,x,t;
	printf("Enter the range : ");
	scanf("%ld%ld",&lb,&ub);
	printf("\nArmstrong numbers in the range %ld to %ld are :\n",lb,ub);
	for(x=lb;x<=ub;x++)
	{
		for(n=0,t=x;t!=0;t/=10,n++)
		;
		for(s=0,t=x;t!=0;t/=10)
		{
			d=t%10;
			p=1;
			for(i=0;i<n;i++)
			p*=d;
			s+=p;
		}
		if(s==x) printf("\n%ld",x);
	}
}