话题分类 > 扫描线 # 题目 标签 难度 1851 包含每个查询的最小区间 [数组] [二分查找] [排序] [扫描线] [堆(优先队列)] Hard 850 矩形面积 II [线段树] [数组] [有序集合] [扫描线] Hard 391 完美矩形 [数组] [扫描线] Hard 218 天际线问题 [树状数组] [线段树] [数组] [分治] [有序集合] [扫描线] [堆(优先队列)] Hard