A Very Big Sum

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    include

    using namespace std;

    int main() { int n; int i; cin>>n; long int arr[n]; long int sum=0; for( i=0;i>arr[i];

    }
    for(i=0;i<n;i++)
    {
        sum=sum+arr[i];
    }
    cout<<sum;
    return 0;
    

    }