Heaps

Kth Largest Element in a Stream

Bank Teller Simulation

Efficient Token Frequency Counting

Frequency and Distance Top-K Points

K Closest Points to Origin

Merge k Sorted Arrays

Merge Sorted Streams

Min-Heap Node Filtering

Minimal Window Spanning Arrays

Number of Orders in the Backlog

Single-Threaded CPU

Single-Threaded CPU with Priority

Smallest Range Covering Elements from K Lists

Sum of K Farthest Items

Top 3 Most Frequent API Calls

Top K Customers by Transaction Volume

Top K Frequent Elements (with Distance Tie-break)

Top K Frequent Elements in a Log File

Top K Frequent Operations

Top K Highest Numbers in a Stream

Top N Frequent Errors

User Activity Tracker

Find Median from Data Stream

Maximal Score After Applying K Operations

Minimum Cost to Hire K Workers

Sliding Window Median

The Skyline Problem

Top K Frequent Elements in a Stream

Top K Frequent Elements with Time Range

Trapping Rain Water II