Pinterest interview notes, page 2 of 24

“I went with DFS right away which was fine, but I fumbled a bit explaining the space complexity.” The rest of the author's notes on Software Engineer interview at Pinterest, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“This thing sprawled in every direction.” The rest of the author's notes on Machine Learning Engineer interview at Pinterest, Onsite - System Design / Architecture round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“Started with adjacency lists which felt right, then they pushed on union-find and I fumbled explaining the path compression part under pressure.” The rest of the author's notes on Software Engineer interview at Pinterest, Onsite - System Design / Architecture round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“Basically the reverse of the classic count-and-say problem.” The rest of the author's notes on Software Engineer interview at Pinterest, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“I knew this was Hierholzer's algorithm territory pretty fast, Eulerian path stuff.” The rest of the author's notes on Software Engineer interview at Pinterest, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“I knew bootstrapping conceptually but had never actually written it from scratch under pressure.” The rest of the author's notes on Data Scientist interview at Pinterest, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“This was the main event and it was a lot.” The rest of the author's notes on Machine Learning Engineer interview at Pinterest, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“This is basically a full ML platform design crammed into one question.” The rest of the author's notes on Machine Learning Engineer interview at Pinterest, Onsite - System Design / Architecture round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“I knew the high-learning-rate answer pretty well: the optimizer overshoots the minimum and bounces around the loss surface.” The rest of the author's notes on Machine Learning Engineer interview at Pinterest, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“The core of this is Hierholzer's algorithm for Eulerian paths, but I didn't think of it that cleanly in the moment.” The rest of the author's notes on Software Engineer interview at Pinterest, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.