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



class Base {
private:
    int *a;
public:
    Base() {
        Derived a;
        a = new int[100];

        throw runtime_error("error");
    }

    ~Base() {
        // delete[] a;
    }
};

class Derived: Base {
public:
    Derived() {
        cout << "Derived constructor";
    }

    ~Derived() {
        cout << "Derived destructor";
    }
};

int main() {
    vector<Derived> bases;
    Derived base;
    bases.push_back(base);

    cout << bases.size() << endl;

    return 0