如何编写一个自定义的Vector方法来删除一个不使用vector::erase()的元素？

#include <iostream>

template <typename T>
class MyVector {
private:
    T* arr;
    int size;

public:
    MyVector() {
        arr = nullptr;
        size = 0;
    }

    ~MyVector() {
        delete[] arr;
    }

    void addElement(T element) {
        T* newArr = new T[size + 1];
        for (int i = 0; i < size; i++) {
            newArr[i] = arr[i];
        }
        newArr[size] = element;
        delete[] arr;
        arr = newArr;
        size++;
    }

    void removeElement(T element) {
        int index = -1;
        for (int i = 0; i < size; i++) {
            if (arr[i] == element) {
                index = i;
                break;
            }
        }
        if (index != -1) {
            for (int i = index; i < size - 1; i++) {
                arr[i] = arr[i + 1];
            }
            size--;
        }
    }

    int getSize() {
        return size;
    }

    T getElement(int index) {
        if (index >= 0 && index < size) {
            return arr[index];
        }
        throw std::out_of_range("Index out of range");
    }
};

int main() {
    MyVector<int> vec;
    vec.addElement(1);
    vec.addElement(2);
    vec.addElement(3);
    vec.addElement(4);
    vec.addElement(5);

    std::cout << "Vector size: " << vec.getSize() << std::endl;
    std::cout << "Elements: ";
    for (int i = 0; i < vec.getSize(); i++) {
        std::cout << vec.getElement(i) << " ";
    }
    std::cout << std::endl;

    vec.removeElement(3);

    std::cout << "Vector size after removal: " << vec.getSize() << std::endl;
    std::cout << "Elements after removal: ";
    for (int i = 0; i < vec.getSize(); i++) {
        std::cout << vec.getElement(i) << " ";
    }
    std::cout << std::endl;

    return 0;
}