Wap ‘C’ to find Armstrong of a number

#include<stdio.h>
#include<conio.h>
void main ( )
{
  int n, i,b, a,sum=0
  printf("Enter a number");
  scanf("%d",&n);
  b = n;
  while(n>0)
  {
    a = n%10;
    sum= sum+(a*a*a);
    n = n/10
  }
    if (sum==b)
    printf("Armstrong");
else
    printf("Not Armstrong");
   getch( );
}