bst_code = ''



def bst_insert(root, name, phone):
   
    if root is None:
        return {'name': name, 'phone': phone, 'left': None, 'right': None}

    if name == root['name']:
        root['phone'] = phone
    elif name < root['name']:
        root['left'] = bst_insert(root['left'], name, phone)
    else:
        root['right'] = bst_insert(root['right'], name, phone)

    return root


def bst_find(root, name):
   
    if root is None:
        return None
    if name == root['name']:
        return root['phone']
    elif name < root['name']:
        return bst_find(root['left'], name)
    else:
        return bst_find(root['right'], name)


def bst_find_min(root):
    
    current = root
    while current['left'] is not None:
        current = current['left']
    return current


def bst_delete(root, name):
   
    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):

    result = []

    def in_order(node):
        if node is not None:
            in_order(node['left'])
            result.append((node['name'], node['phone']))
            in_order(node['right'])

    in_order(root)
    return result


with open('/mnt/agents/output/lab1/src/bst.py', 'w', encoding='utf-8') as f:
    f.write(bst_code)

print("✅ bst.py создан")