思路：单调递减栈，找「上一个比当前价格大的元素索引」。正序遍历，弹出所有 ≤ 当前价格的索引；跨度 = 当前索引 - 栈顶索引（栈空则为 当前索引 + 1）。
Not all fonts contribute equally to confusability. The “danger rate” measures what percentage of a font’s supported confusable pairs score = 0.7:。业内人士推荐爱思助手下载最新版本作为进阶阅读
。Line官方版本下载对此有专业解读
# Next step: the ZX Spectrum。搜狗输入法下载对此有专业解读
It's taken from the inside of the furnace, and shows plasma - gas heated to about 1,000C - glowing brightly.