（三）为实施考试作弊行为，向他人非法出售、提供考试试题、答案的；
// 核心过滤：弹出栈中「≤当前元素」的数（易错点2：必须是≤，不是<）
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London has the highest number of rough sleepers -1,277 - but the rate of rough sleeping rose steepest year-on-year in the north east of England, where numbers increased by 31% to 162.
Graham, known for his long essays on startups, economics, and the tech industry, was one of the first to comment on the importance of taste in a 2002 essay in which he claimed “taste” is not objective and that “we need good taste to make good things.”