Introduction
It is time for me to work on hard level algorithms on hackerrank. I can choose some algorithms I worked on the contest before. I like to get motivated and understand how difficult the algorithm can be in terms of scaling.
I spent half hour to write an algorithm and I just could not believe that I love the algorithm and it can be so easy.
One algorithm a day
This is my algorithm for the day. I wrote some code to figure out how to design API based on given classes and one API.
Here is the transcript. Let us call the algorithm sorting problem in two dimension array.
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