The Hardest Interview 2 New |top| Guide

“Your get_logdet computes full SVD every time – O(d³). How would you make it O(d²) using rank-1 updates?” → Maintain QR factorization of the data matrix, update with Givens rotations.

For the love of all that is holy, do not go silent. the hardest interview 2 new

: The "New" edition features hidden shortcuts if you can spot the interviewer's verbal tells. “Your get_logdet computes full SVD every time – O(d³)