Heap and Priority Queue

Engineering Articles & Deep Dives

Heap and Priority Queue Pattern and most asked problems like Kth Largest Element, Top K Frequent Elements, and Merge K Sorted Lists.

All Array / String Array + HashMap Sliding Window Two Pointer Linked List Binary Search Stack Matrix Trees DFS/BFS + BST Backtracking Heap and Priority Queue Graph + Topological Sort Dynamic Programming Prefix Sum Greedy Interval Divide and Conquer Union-Find (Disjoint Set Union) Trie Bit Manipulation Math / Number Theory
Heap and Priority Queue
Kth Largest Element in an Array [Medium]
24 Aug 2026 2 min read
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Heap and Priority Queue
Top K Frequent Elements [Medium]
24 Aug 2026 2 min read
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Heap and Priority Queue
Meeting Rooms II [Medium]
24 Aug 2026 2 min read
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Heap and Priority Queue
Merge K Sorted Lists [Hard]
24 Aug 2026 2 min read
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Heap and Priority Queue
Find Median from Data Stream [Hard]
24 Aug 2026 2 min read
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