WAP to check whether a number is armstrong or not.

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

int main()
{
   int num,sum,x,n;
   sum=0;
   printf("enter a number");
   scanf("%d",&num);
   n=num;
   while(num!=0)
   {
   x=num%10;            
   sum=sum+(x*x*x);
   num=num/10;
   }
   printf("%d",sum);
   if(sum==n)
   printf("armstrong");
system("PAUSE");
}
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