I am currently studying computer science and we were given assignment to implement two algorithm(Insertion sort and Merge sort) and run them in order to track their running times across different input arrays. And ask us to do: Your task is to run each algorithm 3 times on 5 input arrays with 5, 50, 500, 5000, and 50000 random integers each, and report their running times both as a table and n vs. time plotsI have already implemented algorithm but I am not sure how to calculate runtime of both algorithm. Any help would be appreciated. Thank you. 
How to calculate run time of insertion sort and Merge sort?
algorithms