SmirnovaVYu/docs/data/1/bst.py

@@ -0,0 +1,83 @@
+def bst_insert(root, name, phone):
+    new_node = {'name': name, 'phone': phone, 'left': None, 'right': None}
+    
+    if root is None:
+        return new_node
+    
+    current = root
+    while True:
+        if name < current['name']:
+            if current['left'] is None:
+                current['left'] = new_node
+                break
+            else:
+                current = current['left']
+        elif name > current['name']:
+            if current['right'] is None:
+                current['right'] = new_node
+                break
+            else:
+                current = current['right']
+        else:
+            current['phone'] = phone
+            break
+    
+    return root
+
+
+def bst_find(root, name): #Итеративный поиск в BST
+    current = root
+    while current is not None:
+        if name == current['name']:
+            return current['phone']
+        elif name < current['name']:
+            current = current['left']
+        else:
+            current = current['right']
+    return None
+
+
+def bst_find_min(root): #Поиск минимального узла
+    current = root
+    while current['left'] is not None:
+        current = current['left']
+    return current
+
+
+def bst_delete(root, name): # Рекурсия только в глубину
+    if root is None:
+        return None
+    
+    if name < root['name']:
+        root['left'] = bst_delete(root['left'], name)
+    elif name > root['name']:
+        root['right'] = bst_delete(root['right'], name)
+    else:
+        if root['left'] is None:
+            return root['right']
+        elif root['right'] is None:
+            return root['left']
+        else:
+            min_node = bst_find_min(root['right'])
+            root['name'] = min_node['name']
+            root['phone'] = min_node['phone']
+            root['right'] = bst_delete(root['right'], min_node['name'])
+    return root
+
+
+def bst_list_all(root, records=None): #Возвращает отсортированные записи
+    if records is None:
+        records = []
+    
+    stack = []
+    current = root
+    
+    while stack or current:
+        while current is not None:
+            stack.append(current)
+            current = current['left']
+        current = stack.pop()
+        records.append((current['name'], current['phone']))
+        current = current['right']
+    
+    return records

SmirnovaVYu/docs/data/1/config.py

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+N = 10000              # Количество записей
+REPEATS = 5            # Количество повторений каждого эксперимента
+HASH_TABLE_SIZE = 1000 # Размер хеш-таблицы

SmirnovaVYu/docs/data/1/data_generator.py

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+import random
+
+
+def generate_test_data(N): #Генерирует N записей с именами User_00000 ... User_N-1
+    records = [(f"User_{i:05d}", f"+7-999-{i:05d}") for i in range(N)]
+    
+    records_shuffled = records.copy()
+    random.shuffle(records_shuffled)
+    
+    records_sorted = sorted(records, key=lambda x: x[0])
+    
+    return records, records_shuffled, records_sorted
+
+
+def get_names_for_operations(records, num_find=100, num_delete=50, num_nonexistent=10): #Подготавливает имена для операций поиска и удаления
+    existing_names = [name for name, _ in records[:num_find + num_delete]]
+    names_to_find = existing_names[:num_find] + [f"None_{i}" for i in range(num_nonexistent)]
+    names_to_delete = existing_names[num_find:num_find + num_delete]
+    
+    return names_to_find, names_to_delete