Message_queues

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Your task is the following email system using queue data structure. The emailsystem consists of set of users and each user has one mailbox. The user is specified by username and id. Id is the index number of the user in the user list. The user can a message to another user. The user see list of messages from particular user and can also see the sorted list of messages. ###Input: - Firs

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solution.cppC++17

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