100 lines
2.1 KiB
Python
100 lines
2.1 KiB
Python
import random
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import time
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import csv
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import sys
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sys.setrecursionlimit(20000)
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def ll_insert(head, name, phone):
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data = {'name': name, 'phone': phone, "next": None}
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if head is None:
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return data
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current = head
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while current:
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if current['name'] == name:
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current['phone'] = phone
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return head
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if current['next'] is None:
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last = current
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current = current['next']
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last['next'] = data
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return head
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def ll_find(head, name):
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current = head
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while current:
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if current['name'] == name:
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return current['phone']
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current = current['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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current = head['next']
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while current:
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if current['name'] == name:
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prev['next'] = current['next']
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return head
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prev = current
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current = current['next']
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return head
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def ll_list_all(head):
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data_list = []
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current = head
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while current:
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data_list.append({'name': current['name'], 'phone': current['phone']})
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current = current['next']
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data_list.sort(key=lambda x: x['name'])
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return data_list
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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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return buckets
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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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def ht_delete(buckets, name):
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index = hash_function(name, len(buckets))
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head = buckets[index]
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new_head = ll_delete(head, name)
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buckets[index] = 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
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