The Monk is trying to explain to his students that even a single unit of time can be extremely important and to demonstrate this particular fact, he gives them a challenging task.
There are N processes to be completed by you, the chosen one, since you're Monk's favorite student. All the processes have a unique number assigned to them from 1 to N.
Now, you are given two things:
1) The calling order in which all the processes are called.
2) The ideal order in which all the processes should have been executed.
Now, let us demonstrate this by an example.
Let's say that there are 3 processes, the calling order of the processes is:
3 - 2 - 1. The ideal order is: 1 - 3 - 2, i.e., process number 3 will only be executed after process number 1 has been completed; process number 2 will only be executed after process number 3 has been executed.
Iteration #1: Since the ideal order has process #1 to be executed first, the calling order is changed, i.e., the first element has to be pushed to the last place. Changing the position of the element takes 1 unit of time. The new calling order is: 2 - 1 - 3. Time taken in step #1: 1.
Iteration #2: Since the ideal order has process #1 to be executed first, the calling order has to be changed again, i.e., the first element has to be pushed to the last place. The new calling order is: 1 - 3 - 2. Time taken in step #2: 1.
Iteration #3: Since the first element of the calling order is the same as the ideal order, that process will be executed. And it will be thus popped out. Time taken in step #3: 1.
Iteration #4: Since the new first element of the calling order is the same as the ideal order, that process will be executed. Time taken in step #4: 1.
Iteration #5: Since the last element of the calling order is the same as the ideal order, that process will be executed. Time taken in step #5: 1.
Total time taken: 5 units.
PS: Executing a process takes 1 unit of time. Changing the position takes 1 unit of time.
Requirements:
1. Implement the above problem statement using Python 3.7.
2. Read the input from a file (inputPS04Q1.txt), Print the sequence of events and total time taken for the entire queue of processes to be executed. Use Queues to solve the statement.
3. You will output your answers to a file (outputPS04Q1.txt) for each line.
4. Perform an analysis for the features above and give the running time in terms of input size: n.
