Is it worth solving problems with HackerRank in parallel with development?

Question

Android

I have been learning Android and Java for almost 6 months. I started studying almost immediately with books (Head First. Android, Java, Android for professionals), read all these books and wrote programs on them. Now able to write simple applications (Todo, weather, news, etc.). But there is a feeling and uncertainty in such topics as: algorithms, structures, everything that is more complicated than BubbleSort and ArrayList is familiar to me, but I can’t say that I know it well. And I thought that hackerrank has almost all of these topics and even more. Is it worth solving them, in parallel with the development of applications. Free time per day is about 6-7 hours and is it worth giving each 50 to 50 time? Will it be useful to solve these problems or fully devote time to Android?

Answer 1

HackerRank - useful if you are actively looking for a high-paying job in a large company. There are many tasks similar to those that are given in interviews. If you want to focus on how to make products quickly, which is very popular in small startups, then you should not spend time on this, rather, you need to focus on knowledge of libraries and frameworks.

Answer 2

It is better to solve specific problems during development. And so, there is never superfluous knowledge. If you have the desire and time, then you need to study. Although it can start with application architecture and delve into OOP ...