forked from UNN/2026-rff_mp
59 lines
1.5 KiB
Python
59 lines
1.5 KiB
Python
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def ll_insert(head, name, phone):
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cur = head
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while cur:
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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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cur = cur['next']
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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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while cur['next']:
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cur = cur['next']
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cur['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:
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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:
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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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res = []
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cur = head
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while cur:
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res.append((cur['name'], cur['phone']))
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cur = cur['next']
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res.sort(key=lambda x: x[0])
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return res
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if __name__ == '__main__':
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head = None
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head = ll_insert(head, 'Pasha', '123-456')
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head = ll_insert(head, 'Andrey', '789-012')
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head = ll_insert(head, 'Alisa', '345-678')
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head = ll_insert(head, 'Anna', '111-222')
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print("All:", ll_list_all(head))
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print("Find Pasha:", ll_find(head, 'Pasha'))
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head = ll_delete(head, 'Andrey')
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print("After delete Andrey:", ll_list_all(head))
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