The recruiting process is split into multiple phases.

The first phase was a HackerRank test that contained 3 problems, and you must solve 2 out of 3. Theoretically, you can choose any programming language you want.

My test had platform issues with 2 of the 3 problems:

• For the first problem, I was not able to choose Python as the programming language.
• For the second problem, the checker did not work as expected. The problem statement said, "the order of the info from the output does not matter," but it actually did. I provided this feedback, and they gave me an aggressive answer:
  • "For the first problem, we will take care of it."
  • "For the second problem, some test cases really failed; the number of lines was different." This was true, but I lost a lot of time trying to understand why solutions with the same output, but different order, still failed. But it did not matter to them :)
  • "For the third problem, my solution was not optimal enough."

In the end, my question remains: how could I possibly solve 2 out of 3 problems when there were platform problems with 2 out of 3 problems, so only one was actually actionable?

Data Structures

Dynamic Programming

Regular Expressions