題目
heap
23 Merge k Sorted Lists (Hard)
347 Top K Frequent Elements (Medium)
692 Top K Frequent Words
857 Minimum Cost to Hire K Workers
252 Meeting Rooms (Premium)
253 Meeting Rooms II (Premium)
370 Range Addition (Premium)
358 Rearrange String k Distance Apart (Premium)
two heap
- 295 Find Median from Data Stream (Hard)
- *480 Sliding Window Median (Hard)