// 记录答案：栈顶就是「当前元素右侧第一个更大值」（易错点3：别写反判断）
Instead of filtering syscalls to the host kernel, gVisor interposes a completely separate kernel implementation called the Sentry between the untrusted code and the host. The Sentry does not access the host filesystem directly; instead, a separate process called the Gofer handles file operations on the Sentry’s behalf, communicating over a restricted protocol. This means even the Sentry’s own file access is mediated.
，更多细节参见夫子
Жители Санкт-Петербурга устроили «крысогон»17:52
Цены на нефть взлетели до максимума за полгода17:55