Firstly, and most importantly (in my opinion at least) - BOTH tasks were solved, and in about half the time (the remaining time I optimized the algorithm of the first task + discussed O-notation, corner cases and work in Avito in general ). Moreover, the guys in their feedback clearly talk about this themselves, I quote: "The tasks were solved optimally" Secondly, we discussed those corner cases that I didn’t think about at the beginning, I myself found the problem and fixed it myself. In my opinion, this is a completely working situation. And I have never encountered in interviews that the candidate did not have "the right to make a mistake." Especially in a situation where we do not use an IDE, we cannot run and debug the code Thirdly, both interviewers were extremely tense and unfriendly during all the interviews. One of them had his camera turned off throughout our interview. Communication for me personally was the most uncomfortable. Fourthly, it is extremely strange for me to hear about some "gaps" while one of the interviewers is a BE developer, and the second one tells me that there is no break construct in JS 🤷‍♂️ The only thing I'm 100% ready to admit is the gap in memory evaluation in terms of O-notation. BUT: 1) I called the estimate by TIME immediately and accurately 2) I still eventually correctly determined the complexity (not immediately, but nevertheless)