WAP to find number is Armstrong Number or not

/*WAP to find number is Armstrong Number or not*/

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

void main()
{
    int no,dig,temp,sum=0;

    clrscr();

    printf("Enter no : ");
    scanf("%d",&no);

    temp=no;

    while(temp>0)
    {
 dig=temp%10;

 sum=sum+dig*dig*dig;

 temp=temp/10;
    }

    if (no==sum)
 printf("\n %d is an Armstrong Number",no);
    else
 printf("\n %d is not an Armstrong Number",no);

    getch();
 }