drop-oldest: Drops the oldest buffered data to make room. Useful for live feeds where stale data loses value.
Number (4): Everything in this space must add up to 4. The answer is 5-3, placed vertically; 1-1, placed horizontally.
，更多细节参见heLLoword翻译官方下载
Питтсбург Пингвинз
# Word-level timestamps
* 核心逻辑：能看到的人数 = 弹出的矮个子数量（count） + （栈顶有更高的人则+1，否则+0）