Sweep Line

Hard | Array, Binary Search, Segment Tree, Sweep Line

Hard | Array, Binary Search, Sweep Line, Sorting, Heap (Priority Queue)

Hard | Array, Segment Tree, Sweep Line, Ordered Set

Medium | Array, Two Pointers, Sweep Line

Hard | Array, Hash Table, Math, Geometry, Sweep Line

Hard | Array, Divide and Conquer, Binary Indexed Tree, Segment Tree, Sweep Line, Sorting, Heap (Priority Queue), Ordered Set