program to pause in a data-dependent way. Writing your garbage
* - this.stack：单调递减栈，存储「价格对应的索引」，栈顶→栈底索引对应的价格单调递减
。关于这个话题，safew官方版本下载提供了深入分析
FT Edit: Access on iOS and web
Nasa was targeting March for the launch, but its plans were delayed after a helium leak was discovered on the Space Launch System (SLS) rocket.