The Santa Claus problem, created by John Trono in 1994, illustrates the challenge of coordinating multiple threads in parallel computing. It involves Santa Claus, nine reindeer, and ten elves. The post explains critical concurrency concepts like mutexes and semaphores to manage threads. The solution highlights how to fix a subtle concurrency bug when coordinating the reindeer and Santa. Source code is available on GitHub for further exploration.
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