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23 lines
478 B
Python
23 lines
478 B
Python
class Node:
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def __init__(self, item, next):
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self.item = item
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self.next = next
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class LinkedList:
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def __init__(self):
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self.head = None
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def add(self, item):
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self.head = Node(item, self.head)
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def remove(self):
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if self.is_empty():
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return None
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else:
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item = self.head.item
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self.head = self.head.next
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return item
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def is_empty(self):
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return self.head is None
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