I was invited to an interview two hours after submitting the application online (no referral or recruiter contact).

The first step of the recruiting process was an online Coding Skills Test, with a maximum of 80 minutes to complete all three tasks in Codility.

The second step was a 30-minute interview covering a variety of technical and problem-solving questions.

Codility 2nd question:

Given an array of integers, write an algorithm to find all subsets (or one subset – I don't remember) for which the sum is equal to zero. The array contains both positive and negative integers.

Interview Question:

Explain multithreading to a 6-year-old child.

Interview Question:

There is a 40 kg stone that broke into 4 pieces such that you can measure any weight between 1 kg to 40 kg using a balance. What are the weights of the broken pieces?

Codility 1st question:

Find repeated characters present first in a string.