They first sent me the standard coding challenge for a database on HackerRank. After about a week, they replied and set me up with a phone screen. I passed that one, and they set me up with another one a week later. After that, they wanted to invite me to an onsite, but unfortunately, they informed me they can't sponsor visas for interns. Very unfortunate, as I was having high hopes for the company; the whole process was very well done. The interview questions were both LeetCode hards or modifications of LeetCode hards.

Closest Palindrome

Median of a running stream. Follow-up: If numbers are restricted to a range.