ByteDance interview notes, page 19 of 29

“Classic DP, I knew it the second they described it.” The rest of the author's notes on Machine Learning Engineer interview at ByteDance, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“I stared at this for a while.” The rest of the author's notes on Software Engineer interview at ByteDance, 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 one but fumbled the memory model part.” The rest of the author's notes on Backend Engineer interview at ByteDance, 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 the general shape of the solution pretty fast: walk through the list, dump everything that ends before the new interval starts, then keep merging anything that overlaps by stretching the new interval's bounds, then tack on the rest.” The rest of the author's notes on Software Engineer interview at ByteDance, 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 already a hard problem on its own and adding TTL made it significantly more involved.” The rest of the author's notes on Software Engineer interview at ByteDance, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“Started fine with MSE vs MAE, outlier sensitivity, the usual.” The rest of the author's notes on Machine Learning Engineer interview at ByteDance, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“I got the aggregation part pretty fast, basically a hashmap keyed on (user, day) and then sort at the end.” The rest of the author's notes on Software Engineer interview at ByteDance, 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 LeetCode 437 but with an N-ary tree instead of a binary one.” The rest of the author's notes on Software Engineer interview at ByteDance, 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 the no-duplicates version cold, so my first instinct was to just write that and slap a set on the output.” The rest of the author's notes on Software Engineer interview at ByteDance, 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 the stack approach going in but kept second-guessing myself on when to apply multiplication and division versus just pushing things.” The rest of the author's notes on Software Engineer interview at ByteDance, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.