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1Top-K — Basic Rankingmedium
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Based onLeetCode
mediumBlind 75
Telemetry: Top K Frequent Error Codes
Also known as: Top K Frequent Elements
This one tests whether you can keep a best-so-far structure honest as you go. Interviewers love it because it reveals your priority-based reasoning and your edge-case discipline. The trap is stale entries or unbalanced structures—be clear about what belongs in the heap.
Arrays & HashingHeap / Priority Queue
👩🏫
👨💼
Meet Allison & Tim
Your AI coaches
Practice coding interviews out loud with real-time voice coaching. Your code actually runs.
Free · No sign up · Early access
1Top-K — Basic Rankingmedium
2Part 2
3Part 3
Start Part 1 to unlock your next challenge
Based onLeetCode
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