Question：Consider v the dining -philosophers problem where the chopsticks are placed at the center of the table and any two of them could be used by a philosopher. Assume that requests for chopsticks are made one at a time. Describe a simple rule for determining whether a particular request could be satisfied without causing deadlock given the current allocation of chopsticks to philosophers.

Solution：The rule is: hold and wait to prevent the occurrence of deadlock.To ensure that the hold