Grokking Multithreading and Concurrency for Coding Interviews

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Problem 12: Building H2O

Overview

The Building H2O problem is a classic synchronization challenge in concurrent programming. The main challenge is to ensure that two hydrogen threads and one oxygen thread are properly synchronized so that they can form a water molecule, H2O, without violating the given constraints. This scenario highlights the difficulty of coordinating multiple threads to achieve a specific sequence or grouping, making sure that they interleave in a way that leads to the correct result

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Abhishek Yadav

Abhishek Yadav

· a year ago

Why is there the following lines in hydrogen method?

    // Release the permit for the next Hydrogen
    hSemaphore.release();

I am getting output as following

H H O H2O is generated!

H H O H2O is generated!

H H H O H2O is generated!

H H O H2O is generated!

H

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