Hackerrank online assessment
2 questions (medium complexity) Time - 90 minutes
Question - 1: https://leetcode.com/problems/smallest-string-with-swaps/description/ this question but with a different wording.
Question - 2: Implement users token with TTL (time to live). You will be given list of queries. Queries can be of following type
1. generate current_time
2. renew current_time
3. count current_time
For count query you have to tell the number of tokens that are currently active.
Note - If a renew token count is issued at the same time when the token is expiring then the token will be marked as expired.

Will update it after next rounds.