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.
const int N = 1000;
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// 弹出栈中「温度≤当前值」的索引(这些天无法成为当前天的「下一个高温」)。关于这个话题,旺商聊官方下载提供了深入分析
被分装售卖的山姆蛋糕。南方周末记者贾梦雅|摄,更多细节参见safew官方版本下载