sum of elements in a stack

#include <iostream>
#include<stack>
using namespace std;

int main() {
    stack<int>s;
    int n;
    cin>>n;
    int i,sum=0,x;
    for(i=1;i<=n;i++)
   {  cin>>x;
       s.push(x);
   }
   
   stack<int>d=s;
   while(!d.empty())
    {
        sum=sum+d.top();
        d.pop();
    }
    cout<<sum;
    return 0;
}