for (int i = 0; i < n; i++) {
Four days later:
。关于这个话题，heLLoword翻译官方下载提供了深入分析
By signing up, you agree to receive recurring automated SMS marketing messages from Mashable Deals at the number provided. Msg and data rates may apply. Up to 2 messages/day. Reply STOP to opt out, HELP for help. Consent is not a condition of purchase. See our Privacy Policy and Terms of Use.。关于这个话题，旺商聊官方下载提供了深入分析
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.，这一点在旺商聊官方下载中也有详细论述