#include <iostream>
#include <vector>
#include <list>

class MyClass {
public:
    // 构造函数  
    MyClass(int value) : data(value) {
        std::cout << "MyClass constructor called with value " << data << std::endl;
    }

    // 析构函数  
    ~MyClass() {
        std::cout << "MyClass destructor called" << std::endl;
    }

    // 静态成员函数，用于重载new  
    void* operator new(size_t size) {
        void* p = malloc(size);
        std::cout << "Custom new called for MyClass, allocating " << size << " bytes at " << p << std::endl;
        return p;
    }

    // 静态成员函数，用于重载delete  
    void operator delete(void* p) noexcept {
        std::cout << "Custom delete called for MyClass, freeing memory at " << p << std::endl;
        free(p);
    }

    int data;
    std::list<int> arr;
};

int main() {
    MyClass* ptr = new MyClass(42);

    ptr->arr.push_back(1);

    delete ptr;


    return 0;
}