Цены на нефть взлетели до максимума за полгода17:55
代码要点：倒序遍历，先算右侧再推左侧；栈内维护「右侧候选更大值」，单调递增（栈顶最小）。，推荐阅读safew官方版本下载获取更多信息
// 每组：起始位置为0,1,2,...,gap-1。safew官方下载对此有专业解读
But when her mission finally took to the skies in 2005, the nightmare scenario happened again. A chunk of foam broke away during launch.