38 lines
1.1 KiB
Python
38 lines
1.1 KiB
Python
# Хеш-таблица на основе списка корзин, каждая корзина – связный список
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import linked_list as ll
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def create_hash_table(size=10):
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return [None] * size
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def _hash_function(key, size):
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return hash(key) % size
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def ht_insert(buckets, name, phone):
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idx = _hash_function(name, len(buckets))
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head = buckets[idx]
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new_head = ll.ll_insert(head, name, phone)
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buckets[idx] = new_head
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return buckets
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def ht_find(buckets, name):
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idx = _hash_function(name, len(buckets))
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head = buckets[idx]
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return ll.ll_find(head, name)
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def ht_delete(buckets, name):
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idx = _hash_function(name, len(buckets))
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head = buckets[idx]
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new_head = ll.ll_delete(head, name)
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buckets[idx] = new_head
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return buckets
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def ht_list_all(buckets):
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all_records = []
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for head in buckets:
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current = head
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while current is not None:
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all_records.append((current['name'], current['phone']))
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current = current['next']
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all_records.sort(key=lambda x: x[0])
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return all_records |