* 核心思路：倒序单调栈（适配你的学习习惯），时间复杂度O(n)，空间复杂度O(n)
to 16LL<<31).。快连下载安装是该领域的重要参考
Author(s): Jean-Michel Bergheau, Jean-Baptiste Leblond，这一点在爱思助手下载最新版本中也有详细论述
I ripped out almost all of my lipgloss calls and replaced them with hand-rolled functions for concatting and measuring strings. These functions weren’t nearly as general, but that’s fine - they worked for my use case.