Interview questions
Find a company or topic. Read the sources, then practice.
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Find a company or topic. Read the sources, then practice.
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Showing 1–3
Given a binary matrix where each row is sorted non-decreasing (all 0s before 1s) and you can only query entries via a provided API, find…
Companies: Uber
Array · Binary Search · Interactive · Matrix
Last reported Jun 2026
Control a robot with only move/turn/clean APIs to traverse and clean every reachable cell in an unknown grid with obstacles and no global map. The…
Companies: Google, LinkedIn, Meta, Waymo
Backtracking · Interactive
Last reported Jun 2026
Implement a read(n) method using the provided read4(buf) API where read may be called multiple times; you must preserve and reuse leftover characters between calls…
Companies: Lyft, NVIDIA
Array · Interactive · Simulation