01 — Problem Directory

Data Structures & Algorithms

Complete catalog of 99 interactive algorithm visualizers. Browse by data structure category or filter by difficulty.

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All Categories (99)Arrays & Hashing (21)Trees & BST (23)Linked Lists (15)Stack (12)Binary Search (7)Sliding Window (3)Recursion & DP (3)Heap / Priority Queue (1)Backtracking (14)

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Showing 1 of 99 visualizers

Heap / Priority Queue

Medium

Min Heap (Heapify Up & Down)

Complete binary min-heap implementation visualizing _heapifyUp() on insertion and _heapifyDown() on root extraction across both binary tree and 0-indexed array representations.

Min HeapBinary HeapHeapify Up+3