Удалить SmirnovaVYu/docs/data/bst.py

SmirnovaVYu/docs/data/bst.py

@@ -1,83 +0,0 @@
-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