Pinterest interview notes, page 22 of 24

“The bidirectional part is what got me.” 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 question is basically six questions stitched together and they want you to move through all of them without getting stuck.” 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'd seen the LC 282 version before so I jumped straight into a backtracking approach and felt pretty good.” 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 count part came to me fast, just a counter array per room.” 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.

“Classic opener.” The rest of the author's notes on Machine Learning Engineer interview at Pinterest, Recruiter / HR Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“My first instinct was to ask why Netflix specifically, since Pinterest is literally a shopping-adjacent product and this felt like a curveball.” The rest of the author's notes on Product Manager interview at Pinterest, Onsite - Product Sense / Strategy round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“My first instinct was to just cast to float and call it a day, and the interviewer shut that down immediately.” 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.

“I went straight into market sizing and user segmentation (students vs teachers vs admins) and it felt like the right move until I realized I hadn't actually argued for or against the opportunity clearly.” The rest of the author's notes on Product Manager interview at Pinterest, Onsite - Product Sense / Strategy round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“The key is realizing each operation maps to a contiguous range of increments, so you're really counting how many times the value goes up from one index to the next.” 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.

“I went straight to the frequency map approach, decrement counts as you consume characters, return false if anything dips below zero.” 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.