I had two technical interviews.

The first interview involved discussing the different experiences on my resume and the types of projects I had worked on previously. I was then asked to solve a LeetCode medium-hard question within the remaining 30 minutes.

During the second interview, I was asked a system design question as an informal inquiry. It was not the main focus of the interview, as I was then given a LeetCode medium-to-hard level question, again with 30 minutes remaining. I managed to solve the question through good communication and clarifications. However, at the end of the interview, I was questioned on my ability to speak Mandarin, requiring me to conduct the Q&A segment in Mandarin.

1. Given an array, find the minimum difference among elements across all K-sized non-contiguous subarrays.

2. How would you store user profile data for a social media platform?