(Shell) Operating system task scheduling simulation////Simulates an operating system's use of a priority queue to regulate//access to a system resource (printer, disk, etc.). #include #include #include "PriorityQueue.epp" #include using namespace std;//////Declaration for the task data struct//struct TaskData {int get Priority () const {return priority;}//Returns the priority. Needed by the heap. int priority;//Task's priority arrived;//Time when task was enqueued};//int main() {PriorityQueue > taskPQ://Priority queue of tasks TaskData task;//Task int simLength, //Length of simulation (minutes) minute, //Current minute numPtyLevels, //Number of priority levels numArrivals, //Number of new tasks arriving j;//Loop counter//Seed the random number generator srand((unsigned int)time(NULL)); cout > numPtyLevels; cout > simLength; for (minute = 0, minute