Question: Implement a priority queue in Scheme. The methods supported must include: + insert an element to the priority queue+ remove the highest priority element +

Implement a priority queue in Scheme. The methods supported must include: + insert an element to the priority queue+ remove the highest priority element + extract the highest priority element without removing it from the queue + get the highest priority+ get the size of the queue. To test the implementation, write a driver program to demonstrate the required methods

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