Using C++:

Suppose the following method mystery() is one of the member methods of the linked list, what does it do? bool mystery (const LinkedList& list) { Node* ptrl = head; Node* ptr2 list.head; while (ptr1!= nullptr && ptr2!=nullptr) { if (ptrl->data!= ptr2->data) return false; ptrl= ptrl->next; ptr2 = ptr2->next; } return ptrl== nullptr&& ptr2!= nullptr; }