LinkedIn Interview Question Bank
LinkedIn's loop pivoted heavily in 2025 — Staff candidates now sit a packed two-round phone screen (coding + project retro) before a five-round onsite that includes an AI-Coding session in CoderPad's assistant pane. Behavioural depth is the dominant downlevel axis; the same coding bar that passes at Senior frequently caps a Staff loop with a downlevel offer.
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Letter Combinations of a Phone NumberKth Largest Element in an ArraySum a Multi-Dimensional ArrayMerge Two Binary TreesIntersection of Two Linked ListsInverse Depth Sum of a Nested Integer ListMerge N-ary Trees by KeyLRU Cache with CountersMinimum Length SubstringMax Points on a LineBinary Tree Zigzag Level Order TraversalMaximum Depth of Binary TreeFind Users with a Short Login SessionFind the Second Minimum in a Tournament TreeValidate a Decimal Number StringImplement a Max StackGenerate a Uniform Random Integer in [0, 6] from a Biased Bit GeneratorImplement an LRU CacheMinimum-Cost Path in a Hidden Weighted GridNested List Weight Sum IICan Place Flowers with O(1) QueriesShortest Word Distance IIForm the Largest NumberShortest Word Distance IIDebug Logistic Regression Gradient and Cross-Entropy LossFind a Path with an Unknown-Grid RobotNearest Supply Point in a MapCount Distinct Values in a Huge Sorted ArrayFind K Closest Elements in a Sorted ArrayImplement Power Function