I got the chance for an interview after being selected for the phone pe tech scholar program. After the program and completing the required assignments, I got the chance for an interview.

Round 1:

1. You are given an array of strings arr. A string s is formed by the concatenation of a subsequence of arr that has unique characters. Return the maximum possible length of s.

2. Find all possible recipes from the given supply.

Round 2:

1. Given a string and an integer k, find the length of the longest substring that contains k or fewer characters that are the same.

2. Given a list of employees and their email addresses, write a function to find the departments to which each employee belongs based on the domain of their email address. The department name is the part of the email address after the '@' symbol.

Round 3:

HR interview:

• They asked about my project.
• Previous internship.
• Why PhonePe.
• And a few more questions.