How to make an educational program for the summer?

Question

Java

Good afternoon!
The second year of the university has come to an end, the summer holidays are ahead. Don't want to waste time. There is a desire to catch up in the field of applied programming (so that you can apply for Jun), the Olympiad (so that you have the opportunity to do internships in large IT companies), mathematics (data analysis).
1. Applied programming.
What technology stack do you recommend? Can you recommend some good books on them? Google and Docks are, of course, good, but I want someone to lead by the hand at first. :)
2. Olympiad programming.
acmp.ru, codeforces.com, and what else? Maybe there are good books on how to organize your training? Well, it’s not easy to solve problems head-on.
3. Mathematics.
I have been hearing about data analysis, machine learning and other magic for a long time. Are there any good books (available in English) on this topic? There are a lot of things in stores, but something does not inspire confidence. Along with books, emphasis on www.kaggle.com?
Thanks for the help!

Answer 1

I highly recommend any student looking for a summer internship. Firstly, it will give you much more knowledge and skills than you can acquire on your own or at the university. Secondly, it will give experience, which will be very useful for employment after receiving a diploma.

Answer 2

Focus on the base
Go through the PL and choose a stack for yourself for the next year
Those if python and web, then only python on the web, if java on android, then java core + android api, not java on the server
Immediately look for an internship, and also it’s better to have a full-time job not only for the summer
When you have a base you can spread to cabling and other big data
Taking into account the fact that you will need well-studied mathematics at the 1st year level

Answer 3

1. Choose a stack of technologies for your tasks, but not vice versa.
Now almost everything can be written using JavaScript. If something doesn’t work out (physically or doesn’t suit performance), then C / C ++
Web, Desktop, Mobile will help - all this is possible on JS, except that in the latter cases, native applications will win in performance
2. Codewars