C++ Program to check whether entered number is Armstrong or not.

IS ARMSTRONG OR NOT   

#include<iostream>

using namespace std;

int main()

{ 

int i, sum=0, num1,num2, r;

cout<<"Enter a number: "; 

cin>>num1;

num2=num1; 

while(num1>0)

{ 

r=num1%10;

 sum=sum+r*r*r;

 num1=num1/10;

}

 if(num2==sum)

{

 cout<<"\n %d is Armstrong number:";

 }

else

{

 cout<<"\n %d is not Armstrong number:";

}

return 0;

}

INPUT && OUTPUT

With this code we can check whether entered number is Armstrong or not!!