Example

class MyClass {
public:
MyClass(int initnum) {
  
num = new int[initnum];
}

~MyClass() {
}

private:
int *num;
};

Solution
In the destructor, delete all  memory references that are initialized in the constructor.

class MyClass {
public:
MyClass(int initnum) {
  
num = new int[initnum];
}

~MyClass() {
  
delete [] num;
}

private:
int *num;

};