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Дикие звери прогулялись по Санкт-Петербургу и попали на видеоВ Петербурге заметили кабана и лань，详情可参考爱思助手下载最新版本
I wish I’d approached retailers and distributors sooner. Early self-doubt and the quest for perfection held me back — but they shouldn’t stop you from taking action.，更多细节参见同城约会
思路：单调递增栈 + k 控制删除次数。高位越小整体越小，遇更小数字时弹出栈顶大数（仅当 k0）；栈空且当前为 0 则跳过（避免前导零）；若遍历完 k 仍0，从末尾再删 k 位。
Natural neighbour interpolation has a number of strengths over linear barycentric interpolation. Namely, it provides a smooth or continuous slope between samples3, and is always the same for a given point set, unlike the TIN where the quality of the triangulation can produce biases in the outcome, even in the best case.