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There's a tradeoff: a lower capacity means you can skip more space during queries (you zoom in faster), but the tree has more nodes and uses more memory. A higher capacity means fewer nodes but each node requires checking more points linearly. As a starting point, capacities between 4 and 16 are reasonable defaults, though the best value depends on your data distribution and query patterns.
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“本来应该从从容容、游刃有余！现在是匆匆忙忙、连滚带爬！”这本来是台湾地区一位民意代表王世坚批评台北市市政管理混乱说的话，但是由于他讲话的语气相当有节奏感，富有张力，后来还被博主改编成了歌曲《没出息》，于是迅速火爆全网。不过最近，国务院台办发言人表示，这个人一边靠着“没出息”的改编热度，在网络上蹭眼球，一边又大放厥词刷存在，这种自相矛盾的作秀，真是没出息。