我试图通过添加移动构造函数和移动赋值运算符来编写简单的程序。我正在使用valgrind检查内存泄漏。我面临着一些错误。我可以知道我在哪里犯了错误，以解决所有复制和移动构造函数以及赋值运算符没有任何内存泄漏的问题吗？？？我可以得到解决方案吗？

#include <iostream>
using namespace std;
class MY{
    int **p;
    public:
        MY(){
            cout << "Default Constructor" << endl;
            p = new int*[4];
            for(int i=0;i<4;i++)
                p[i] = new int[5];
        }
        // Copy Constructor
        MY(const MY& obj){
            cout << "Copy Constructor" << endl;
            p = new int*[4];
            for(int i=0;i<4;i++)
                p[i] = new int[5];

            for(int i=0;i<4;i++){
                for(int j=0;j<5;j++)
                    p[i][j] = obj.p[i][j];
            }
        }
        // Copy Assignment Operator
        MY& operator = (const MY & obj){
            cout << "Copy Assignment Opearator" << endl;

            if(this == &obj)
                return *this;

            for(int i=0;i<4;i++)
                delete [] p[i];
            delete [] p;

            p = new int*[4];
            for(int i=0;i<4;i++)
                p[i] = new int[5];

            for(int i=0;i<4;i++){
                for(int j=0;j<5;j++)
                    p[i][j] = obj.p[i][j];
            }
            return *this;
        }
        // Move Constructor
        MY(MY && obj){
            cout << "Move Constructor" << endl;
            p = obj.p;
            obj.p = nullptr;
        }
        // Move Assignment Operator
        MY& operator = (MY && obj){
            cout << "Move Assignement Operator" << endl;
            if(this == &obj)
                return *this;
            for(int i=0;i<4;i++)
                delete [] p[i];
            delete [] p;
            p = obj.p;
            obj.p = nullptr;

            return *this;
        }

        ~MY(){
            cout << "Destructor " << endl;
            for(int i=0;i<4;i++)
                delete [] p[i];
            delete [] p;    
        }
        void setData(){
            for(int i=0;i<4;i++){
                for(int j=0;j<5;j++)
                    p[i][j] = i*j;
            }
        }
        void printData(){
            for(int i=0;i<4;i++){
                for(int j=0;j<5;j++)
                    cout << p[i][j] << " ";
                cout << endl;    
            }
        }
};

int main()
{
    MY obj;
    obj.setData();
    obj.printData();

    // MY coj(obj);
    // coj.printData();

    // MY aoj ;
    // aoj = obj;
    // aoj.printData();

    MY moj(std::move(obj));
    moj.printData();

    MY loj;
    loj = std::move(obj);
    loj.printData();
}