ig thats it for now
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@ -97,3 +97,188 @@ def ht_list_all(buckets):
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all_records.sort(key=lambda x: x[0])
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return all_records
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def create_node(name, phone):
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return {'name': name, 'phone': phone, 'left': None, 'right': None}
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def bst_insert(root, name, phone):
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if root is None:
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return create_node(name, phone)
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if name == root['name']:
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root['phone'] = phone
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elif name < root['name']:
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root['left'] = bst_insert(root['left'], name, phone)
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else:
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root['right'] = bst_insert(root['right'], name, phone)
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return root
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def bst_find(root, name):
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if root is None:
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return None
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if name == root['name']:
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return root['phone']
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elif name < root['name']:
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return bst_find(root['left'], name)
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else:
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return bst_find(root['right'], name)
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def find_min(node):
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while node['left'] is not None:
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node = node['left']
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return node
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def bst_delete(root, name):
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if root is None:
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return None
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if name < root['name']:
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root['left'] = bst_delete(root['left'], name)
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elif name > root['name']:
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root['right'] = bst_delete(root['right'], name)
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else:
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if root['left'] is None:
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return root['right']
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if root['right'] is None:
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return root['left']
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min_node = find_min(root['right'])
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root['name'] = min_node['name']
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root['phone'] = min_node['phone']
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root['right'] = bst_delete(root['right'], min_node['name'])
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return root
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def bst_list_all(root):
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result = []
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def inorder(node):
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if node is None:
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return
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inorder(node['left'])
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result.append((node['name'], node['phone']))
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inorder(node['right'])
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inorder(root)
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return result
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def generate_records(n, seed=50): #почти в точности позаимствовано, просто понял что можно уже существующие в отдельный список заносить
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random.seed(seed)
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records = []
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for i in range(1, n + 1):
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name = f"User_{i:05d}"
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phone = "8" + ''.join(str(random.randint(0, 9)) for _ in range(10))
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records.append((name, phone))
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return records
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def prepare_datasets(base_records):
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shuffled = base_records.copy()
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random.shuffle(shuffled)
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sorted_records = sorted(base_records, key=lambda x: x[0])
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return shuffled, sorted_records
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def run_experiment(struct_funcs, records, mode_name, repeats=5):
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results = []
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for rep in range(repeats):
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struct = struct_funcs['create']()
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start = time.perf_counter()
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for name, phone in records:
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struct = struct_funcs['insert'](struct, name, phone)
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end = time.perf_counter()
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insert_time = end - start
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existing_names = [name for name, _ in records]
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sample_existing = random.sample(existing_names, 100)
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nonexistent = [f"None_{i}" for i in range(10)]
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search_names = sample_existing + nonexistent
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random.shuffle(search_names)
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start = time.perf_counter()
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for name in search_names:
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_ = struct_funcs['find'](struct, name)
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end = time.perf_counter()
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find_time = end - start
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to_delete = random.sample(existing_names, 10)
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start = time.perf_counter()
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for name in to_delete:
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struct = struct_funcs['delete'](struct, name)
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end = time.perf_counter()
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delete_time = end - start
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results.append({
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'structure': struct_funcs['name'],
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'mode': mode_name,
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'repetition': rep + 1,
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'insert_time': insert_time,
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'find_time': find_time,
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'delete_time': delete_time
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})
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return results
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def main():
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N = 1000
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base_records = generate_records(N)
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shuffled, sorted_records = prepare_datasets(base_records)
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structures = {
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'LinkedList': {
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'name': 'LinkedList',
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'create': lambda: None,
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'insert': ll_insert,
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'find': ll_find,
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'delete': ll_delete,
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'list_all': ll_list_all
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},
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'HashTable': {
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'name': 'HashTable',
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'create': lambda: [None] * 10,
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'insert': ht_insert,
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'find': ht_find,
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'delete': ht_delete,
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'list_all': ht_list_all
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},
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'BST': {
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'name': 'BST',
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'create': lambda: None,
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'insert': bst_insert,
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'find': bst_find,
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'delete': bst_delete,
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'list_all': bst_list_all
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}
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}
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all_results = []
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repeats = 5
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for struct_name, funcs in structures.items():
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print(f"Тестирование {struct_name} на случайном порядке...")
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res = run_experiment(funcs, shuffled, 'random', repeats)
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all_results.extend(res)
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print(f"Тестирование {struct_name} на отсортированном порядке...")
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res = run_experiment(funcs, sorted_records, 'sorted', repeats)
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all_results.extend(res)
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with open('experiment_results.csv', 'w', newline='', encoding='utf-8') as f:
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writer = csv.writer(f)
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writer.writerow(['Structure', 'Mode', 'Repeat', 'Insert (sec)', 'Search (sec)', 'Delete (sec)'])
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for r in all_results:
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writer.writerow([
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r['structure'],
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r['mode'],
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r['repetition'],
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f"{r['insert_time']:.6f}",
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f"{r['find_time']:.6f}",
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f"{r['delete_time']:.6f}"
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])
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print("Эксперимент завершён. Результаты сохранены в experiment_results.csv.")
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if __name__ == '__main__':
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main()
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