游戏里，树只能种在森林里，不同区域有着不同的土质；摆放、欣赏名贵字画时，必须戴上手套。玩家们频频吐槽“鱼不值钱”，实则是波波的刻意设计：桃源村物产丰富，谁也不缺，天生天长的东西，自然不值钱。
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）。
。关于这个话题，Line官方版本下载提供了深入分析
Science & Environment
Let’s now imagine that the station is depressurized and, for the first time in decades, empty, operated entirely via computers and remote control. First, NASA and its partners must accept the need to deorbit—there’s no going back to save the ISS. This could be complicated: 23 countries in the European Space Agency, as well as Japan and Canada, are involved in the ISS partnership. And then there’s Russia. The Russians have committed to supporting the ISS only until 2028. But they did agree to help NASA in a contingency deorbit situation.