In the remove_at_beginning() method, point the head to the next node of the head. class LinkedList: def __init__(self)

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小小草
小小草 LV1 2023年9月23日 23:40 发表
Here's the code to point the head to the next node of the head in the `remove_at_beginning()` method: ``` class LinkedList: def __init__(self): self.head = None self.tail = None def remove_at_beginning(self): # The "next" node of the head becomes the new head node if self.head: self.head = self.head.next ``` Note that we check whether there is a head node before updating it. If there is no head node, then there is nothing to remove.
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