解决这个问题的方法可以分为以下几步：

1. 定义一个教室类（Classroom），包含教室的属性和方法。例如，教室的编号、容纳人数、设备等。

class Classroom:
    def __init__(self, room_number, capacity, equipment):
        self.room_number = room_number
        self.capacity = capacity
        self.equipment = equipment

2. 定义一个教师类（Teacher），包含教师的属性和方法。例如，教师的姓名、账户是否被删除等。

class Teacher:
    def __init__(self, name, deleted_account):
        self.name = name
        self.deleted_account = deleted_account

3. 创建一个教室列表和教师列表，并初始化一些教室和教师的信息。

classrooms = []
teachers = []

classrooms.append(Classroom("Room 1", 30, ["Projector", "Whiteboard"]))
classrooms.append(Classroom("Room 2", 20, ["Whiteboard"]))
classrooms.append(Classroom("Room 3", 25, ["Projector"]))
classrooms.append(Classroom("Room 4", 15, []))

teachers.append(Teacher("Teacher 1", False))
teachers.append(Teacher("Teacher 2", True))
teachers.append(Teacher("Teacher 3", False))
teachers.append(Teacher("Teacher 4", True))

4. 遍历教师列表，找到被删除账户的教师，并将其相关的教室添加到一个被弃置的教室列表中。

abandoned_classrooms = []

for teacher in teachers:
    if teacher.deleted_account:
        for classroom in classrooms:
            if classroom.capacity >= 20:  # 假设只筛选容纳人数大于等于20的教室
                abandoned_classrooms.append(classroom)
                classrooms.remove(classroom)

这样，所有被删除教师账户弃置的教室就会被添加到abandoned_classrooms列表中，并从原来的教室列表中删除。你可以根据具体需求修改代码中的条件和逻辑。