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  • homeword5_邢杰焰

    # Problem Descr iption:
    A database could be shared by multithreads. Some threads are used for only reading while others are functioning upgrasion. The former user is called reader and the later is called the writer. If writing and other users(neither writer nor reader) concurrently share the object, it might be confused. At these time, to ensure the such kind of hard cases happen, writers are required to exclude the other who access the shared databases.

    # Solutions:

    ## Basic
    To overcome


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