sum of elements in a stack

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#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; }
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