forked from UNN/2026-rff_mp
133 lines
3.2 KiB
Python
133 lines
3.2 KiB
Python
import random
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# Sv Spisok
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ll_head = None
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def ll_insert(name, phone):
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global ll_head
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cur = ll_head
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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
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cur = cur['next']
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new_node = {'name': name, 'phone': phone, 'next': ll_head}
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ll_head = new_node
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def ll_find(name):
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cur = ll_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(name):
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global ll_head
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if ll_head is None:
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return
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if ll_head['name'] == name:
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ll_head = ll_head['next']
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return
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prev = ll_head
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cur = ll_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
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prev = cur
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cur = cur['next']
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def ll_list_all():
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records = []
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cur = ll_head
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while cur is not None:
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records.append((cur['name'], cur['phone']))
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cur = cur['next']
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records.sort(key=lambda x: x[0])
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return records
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# HESH
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BUCKET_COUNT = 10
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buckets = [None] * BUCKET_COUNT
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def hash_func(name):
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s = 0
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for ch in name:
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s += ord(ch)
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return s % BUCKET_COUNT
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def ht_insert(name, phone):
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global buckets
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idx = hash_func(name)
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cur = buckets[idx]
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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
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cur = cur['next']
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new_node = {'name': name, 'phone': phone, 'next': buckets[idx]}
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buckets[idx] = new_node
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def ht_find(name):
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idx = hash_func(name)
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cur = buckets[idx]
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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 ht_delete(name):
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global buckets
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idx = hash_func(name)
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head = buckets[idx]
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if head is None:
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return
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if head['name'] == name:
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buckets[idx] = head['next']
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return
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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
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prev = cur
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cur = cur['next']
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def ht_list_all():
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all_records = []
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for head in buckets:
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cur = head
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while cur is not None:
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all_records.append((cur['name'], cur['phone']))
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cur = cur['next']
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all_records.sort(key=lambda x: x[0])
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return all_records
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#Test
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if __name__ == '__main__':
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print("=== Тест связного списка ===")
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ll_insert("Kiril", "123-456")
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ll_insert("Pavel", "789-012")
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ll_insert("Alina", "345-678")
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ll_insert("Kolia", "111-222") # обновление
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print("Все записи (список):", ll_list_all())
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print("Поиск Kiril:", ll_find("Kiril"))
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ll_delete("Pavel")
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print("После удаления Pavel:", ll_list_all())
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print("\n=== Тест хеш-таблицы ===")
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ht_insert("Kiril", "123-456")
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ht_insert("Pavel", "789-012")
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ht_insert("Alina", "345-678")
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ht_insert("Kolia", "111-222")
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print("Все записи (хеш):", ht_list_all())
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print("Поиск Anna:", ht_find("Kiril"))
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ht_delete("Kolia")
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print("После удаления Kolia:", ht_list_all())
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