01 — problem
Top K Frequent Elements — LeetCode #?. Full problem statement, examples, and constraints live at https://leetcode.com/problems/top-k-frequent-elements. DSAPatterns tracks this problem for pattern coverage and progress tracking.
02 — notes
Full examples and constraints live on the original LeetCode prompt. Use the link in the sidebar when you want the canonical statement.
03 — hints
Start by identifying the core top k elements idea that reduces the search space.
If you get stuck, check whether a standard top k elements technique applies here.