Grokking Multithreading and Concurrency for Coding Interviews

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Problem 17: Traffic-Light-Controlled Intersection Synchronization

Overview

The problem at hand is to ensure the smooth and safe movement of vehicles and pedestrians through a four-way intersection using traffic lights. Each direction of vehicle traffic and each direction of pedestrian traffic is represented as an individual thread, resulting in a total of eight threads. The challenge lies in synchronizing these threads such that there's no collision, and the flow is efficient.

Concurrency & Synchronization Insights

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Salih Boshnak

Salih Boshnak

· a year ago

pedestrians and vehicles can pass concurrently in a + intersection shape your solution does not implement this

Salih Boshnak

Salih Boshnak

· 4 months ago

locking is redundant in your solution only one thread is locking it

this question is misleading please consider refactoring it