Coding rounds

Amazon coding rounds

5 timed coding challenges drawn from real loops. Submit a solution to see your test pass rate and AI feedback.

intermediate 40:00+90 XP

Top K Frequent Elements

Given an integer array `nums` and an integer `k`, return the `k` most frequent elements. You may return the answer in any order. Aim for better than O(n log n) using bucket sort by frequency.

Examples

1 appears 3x, 2 appears 2x
in: nums=[1,1,1,2,2,3], k=2
out: [1,2]
single element
in: nums=[1], k=1
out: [1]

javascript

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