forked from UNN/2026-rff_mp
58 lines
1.1 KiB
Python
58 lines
1.1 KiB
Python
def ll_insert(head, name, phone):
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new_node = {'name': name, 'phone': phone, 'next': None}
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if head is None:
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return new_node
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cur = head
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prev = None
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while cur is not None:
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if cur['name'] == name:
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cur['phone'] = phone
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return head
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prev = cur
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cur = cur['next']
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prev['next'] = new_node
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return head
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def ll_find(head, name):
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cur = head
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while cur is not None:
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if cur['name'] == name:
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return cur['phone']
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cur = cur['next']
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return None
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def ll_delete(head, name):
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if head is None:
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return None
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if head['name'] == name:
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return head['next']
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prev = head
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cur = head['next']
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while cur is not None:
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if cur['name'] == name:
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prev['next'] = cur['next']
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return head
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prev = cur
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cur = cur['next']
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return head
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def ll_list_all(head):
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result = []
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cur = head
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while cur is not None:
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result.append((cur['name'], cur['phone']))
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cur = cur['next']
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result.sort(key=lambda x: x[0])
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return result
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