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Coding · Practical engineering
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Design a data structure that supports addScore(playerId, score), reset(playerId), and top(K) which returns the sum of the top K players' scores; the core challenge is…
Companies: Yahoo, Microsoft, Uber
Last reported Jan 2026
Build a KNN classifier that handles edge cases like tie-breaking, data quality issues, and feature scaling. Address production concerns including noisy data, identical feature…
Companies: Yahoo, Intuit
Last reported Jan 2026
Given an integer array, repeatedly remove contiguous subarrays that are palindromes and return the minimum number of moves to delete the whole array. This is…
Companies: Yahoo
Last reported Jan 2026