q1. Similar to this but not exactly https://leetcode.com/problems/number-of-ways-to-stay-in-the-same-place-after-some-steps/
q2. Similar to this but not exactly https://leetcode.com/problems/meeting-rooms-ii/

Descriptions were very vague so a lot of time spent in figuring out the problem. Was able to solve q1 optimally and only provide algorithm for q2.

Tips: make sure you can explain run time complexities correctly

Best of luck folks!