[C++] How to properly de-allocate memory from this linked list using a while loop?

code:

cout << "Input Values and Type 'exit' to end the Program" << endl;

string s;

Node *head = new Node();

Node *temp = head;

while(1){

cin >> s;

if(s!= "exit"){

temp -> item = s;

temp -> next = new Node();

temp = temp -> next; }

else {break;}

}

temp -> next = nullptr;

temp = head;

cout << " ";

cout << "The values in the list are: " << endl;

cout << "---------------------------" << endl;

while (temp->next != nullptr){

cout << temp -> item << endl;

temp = temp -> next;

}

/*

Properly de-allocate linked list

*/

return 0;