With a thousand points, you barely notice the delay. With a million, you're doing a million distance calculations for every single query. On a phone updating the map as the user scrolls, that's untenable.
定弹出条件：看题目要的是「第一个 / ≥ / < / ≤ cur」，对照上文的弹出条件对应法则决定弹谁。
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19:52, 27 февраля 2026Силовые структуры
圖像來源，TIWA台灣國際勞工協會
Ofcom, the online regulator, said it could now apply to the courts to demand internet service providers block access to the site in the UK. This will depend on how the site, which also faces fines, responds over the next 10 days.