forked from UNN/2026-rff_mp
160 lines
3.2 KiB
Python
160 lines
3.2 KiB
Python
head = None
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#node1 = {'name' : 'Ivan', 'phone' : '123-456', 'next' : None}
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#head = node1
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#node2 = {'name' : 'Dima', 'phone' : '789-123', 'next' : None}
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#node1['next'] = node2
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def ll_insert(head, name, phone):
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curent = head
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while curent is not None:
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if curent['name'] == name:
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curent['phone'] = phone
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return head
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curent = curent['next']
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n_node = {'name' : name, 'phone' : phone, 'next' : None}
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if head is None:
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return n_node
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curent = head
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while curent['next'] is not None:
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curent = curent['next']
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curent['next'] = n_node
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return head
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print("====== TESTING ll_insert FUNC ========")
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head = ll_insert(head,'Ivan','123-456')
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print(head)
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head = ll_insert(head, 'Boris', '123-456')
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print(head)
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head = ll_insert(head, 'Ivan', '321-654')
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print(head)
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head = ll_insert(head, 'Dima', '345-678')
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print(head)
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head = ll_insert(head, 'Boris', '111-222')
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print(head)
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head = ll_insert(head, 'Methody', '221-112')
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head = ll_insert(head, 'Kiril', '112-221')
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print(f"======= END TEST =======\n\n\n")
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def ll_find(head, name):
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curent = head
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while curent is not None:
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if curent['name'] == name:
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return curent['phone']
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curent = curent['next']
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return None
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print("====== TESTING ll_find FUNC ======")
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print("Ivan`s phone: "+ ll_find(head, 'Ivan'))
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print("Dima`s phone: "+ ll_find(head, 'Dima'))
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print("Boris phone: "+ ll_find(head, 'Boris'))
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print(f"====== END TEST ======\n\n\n")
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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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curent = head['next']
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while curent is not None:
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if curent['name'] == name:
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prev['next'] = curent['next']
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return head
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prev = curent
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curent = curent['next']
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return head
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print("====== TEST ll_delete FUNC ======")
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print("Del of Dima:", ll_delete(head, 'Dima'))
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print("====== END TEST ======")
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def ll_list_all(head):
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records = []
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curent = head
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while curent is not None:
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records.append((curent['name'],curent['phone']))
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curent = curent['next']
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records.sort(key=lambda pair: pair[0])
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return records
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print(f"\n\n\n\n")
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print("====== TESTING ll_list_all FUNC ======")
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print(ll_list_all(head))
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print("====== END ======")
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SIZE = 5
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buckets = [None] * SIZE
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def hash_function(name, size):
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return hash(name) % size
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def ht_insert(buckets, name, phone):
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index = hash_function(name, len(buckets))
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head = buckets[index]
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new_head = ll_insert(head, name, phone)
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buckets[index] = new_head
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print(f"\n\n\n ====== TEST INSERT HASH ======")
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print(buckets)
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ht_insert(buckets, "Ivan", "123-456")
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print(buckets)
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ht_insert(buckets, "Dima", "789-123")
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print(buckets)
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ht_insert(buckets, "Boris", "456-789")
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print(buckets)
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print("====== END TEST ======\n\n\n")
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def ht_find(buckets, name):
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index = hash_function(name, len(buckets))
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head = buckets[index]
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return ll_find(head, name)
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print("====== TEST FIND HASH FUN ======")
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print("find by name Ivan: ",ht_find(buckets, "Ivan"))
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print("find by name Dima: ",ht_find(buckets, "Dima"))
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print("find by name Boris: ", ht_find(buckets, "Boris"))
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print("====== END TEST ======")
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