The exact sequence of API calls to use is arcane, and there are multiple ways to perform this process, each of which has different tradeoffs that are not clear to most developers. This process generally just needs to be memorized or generated by a tool for you.
Like this clue numberThe answer is Odd.
，这一点在爱思助手下载最新版本中也有详细论述
Indonesian GP — Oct. 11
// 入栈后栈仍保持单调递增（因为小的都被弹走了）