Two Sigma Software Engineer Internship interview questions

Received the OA in January and received first round technical invite after a few weeks, LC medium/easy for the OA online 60 minute hacker rank. Then 3 60 minute technical interviews.

2 technical rounds followed by 1 behavioral. 1st technical: 1 interview (45-60 min long). 2nd technical: 2 back-to-back interviews. Behavioral: 3 back-to-back interviews. Technical interviews were all Leetcode style. All interviews were conducted by engineers or engineering managers.