Goldman Sachs Associate interview questions

Extremely unprofessional from everyone involved at Goldman (from the team members to the HR). My interview was scheduled and cancelled and not informed or was just informed a bit before the interview time on multiple occasions. The HR of such a reputed firm seems to be the worst

1 Hackerrank 1 coderpad 3 rounds as super day -(1 DSA, 1 System design, 1 SDLC and resume deep dive. Focus on Sorting, Priority Queue, Tree, graphs(only bfs and dfs is sufficient)