You need to write C++ code that should read data from the file and use that data to build doubly linked for implementation of the priority Queue. The priority of the process should be according to given priority_level(1 to 6, where 6 is least and 1 is higher) but if two processes with the same priority_level exist in the queue then the process with earlier entry time should exit first. User should be given choice to whether enter a new process into the queue or dequeue existing process.