Question
Given the `SinglyLinkedList` and its `delete_node`
method as provided, what will be the output of `my_list.print_list()` after the following sequence of operations? my_list = SinglyLinkedList() my_list.append(10) my_list.append(20) my_list.append(30) my_list.append(40) my_list.delete_node(10) my_list.delete_node(30) my_list.print_list()Solution
Deleting 10 (head) works correctly, making the list 20 -> 30 -> 40. Attempting to delete 30 (non-head) triggers the error, and the prev.next pointer (from 20 to 30) is not updated. The list remains 20 -> 30 -> 40.
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