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Merge k Sorted Lists
HARD
Sliding Window Maximum
HARD
Top K Frequent Elements
MEDIUM
Kth Largest Element in an Array
MEDIUM
Find Median from Data Stream
HARD
Task Scheduler
MEDIUM
Cheapest Flights Within K Stops
MEDIUM
Kth Smallest Element in a Sorted Matrix
MEDIUM
Reorganize String
MEDIUM
K Closest Points to Origin
MEDIUM
Sort Characters By Frequency
MEDIUM
Find K Closest Elements
MEDIUM
Top K Frequent Words
MEDIUM
Meeting Rooms II
MEDIUM
Kth Largest Element in a Stream
EASY
Car Pooling
MEDIUM
Swim in Rising Water
HARD
Sliding Window Median
HARD
The Maze II
MEDIUM
Path With Maximum Minimum Value
MEDIUM
Find the Kth Smallest Sum of a Matrix With Sorted Rows
HARD
Optimize Water Distribution in a Village
HARD
Rearrange String k Distance Apart
HARD
Minimum Path Cost in a Hidden Grid
MEDIUM