I applied through college or university. The process took one day.

• First round: An online assessment round. There were 3 problems in the OA: one medium, a second medium-hard, and a third hard. All the candidates who had done two questions were shortlisted for the second round.
• Second round: A technical round. The interviewer asked me 2 DSA problems, which were not that hard. Anyone who has practiced 300-400 problems can easily solve them.
• Third round: A system design round. The interviewer was very friendly and at a very senior position in the company, but I was not able to pass that round as I hadn't practiced system design problems.

We are given a string, and we have to tell how many substrings of that string are pseudo-palindromes. A pseudo-palindrome is when any permutation of a string is a palindrome.