Using system.nanoTime().
Taken from stack overflow.http://stackoverflow.com/questions/3382954/measure-execution-time-for-a-java-method
Using Scanner in = new Scanner(System.in)
Taken from http://stackoverflow.com/questions/4644415/how-to-get-input-from-console-class-in-java
Merge branch 'master' of https://github.com/Zyoruk/DataStructsCasesSimulator