DE Shaw Internship Interview Experience | On-Campus 2021

DE Shaw held an on-campus recruitment drive for the position of SDE intern (2 months) in our campus in the first week of August 2020.The following is a summary of my experience.There were three rounds to the selection process:Round 1: Technical Test (90 minutes) | Hacker RankThere were three code questions in this round. One question was about arrays, while the other two were on Dynamic Programming. Each question had a set time limit that could not be carried over to the next question. The three questions were:Given an array of n numbers, find the number of triplets such that AiAk where I, j, k are indices of the array and i