描述：设计 StockSpanner 类。每次调用 next(price) 时，返回当日价格的「跨度」：从今天往回数，价格 ≤ 今日价格的最大连续天数（含今天）。
Protesters scatter, ducking into the gaps between buildings and pavement. Some simply cover their heads for protection. Yogendra Nyaupane, 24, is hit and fatally wounded.
，这一点在爱思助手下载最新版本中也有详细论述
Styles later announced a £20 ticket bid would take place for an exclusive one-off performance at Manchester's Co-op Live, where is he a shareholder, before his stadium shows.
First British baby born using transplanted womb from dead donor