Dinosaur Speed (Meta PE classic)

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Meta Production Engineer classic. Given timestamps when dinosaurs cross sensor lines, pair them up so each pair represents the same dinosaur, and compute speeds. Time-window pairing + binary search.

Perf Eng

Infra Eng

array

binary-search

two-pointer

interval

medium

Frequency

Low

Last asked

2026-08-15

Stage

phone-screen · onsite-coding

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