Find error

Question

#include<iostream>
using namespace std;
int main(){
int r;
long sum=0,num,c,s;
cout<<"enter number ";
cin>>num;
for(c=1;c<=num;c++)
{
s=c;
while(s!=0)
{
r=s%10;
sum=sum+(r*r*r);
s=s/10;
}
if(c==num){
cout<<c<<endl;}
}
sum=0;
return 0;
}

Answer 1

The problem which I think in this program is that the variable s will never be 0 because you started c as 1 and assigned it to s. this leads to infinite loop.

Answer 2

i also apply s=s/10