Meta interview notes, page 206 of 238

“This one took me a while to even parse correctly.” The rest of the author's notes on Data Scientist interview at Meta, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“Went with a CTE to count accounts per user first, then a CASE in the outer query to assign buckets, then GROUP BY that.” The rest of the author's notes on Data Scientist interview at Meta, 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 with the three-flag scan approach (tracking whether I'd seen a digit, a dot, an exponent) instead of a full state machine, which felt cleaner to code quickly.” The rest of the author's notes on Software Engineer interview at Meta, 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 ads tooling because it felt safe, but partway through I realized I was basically describing something Meta already has.” The rest of the author's notes on Product Manager interview at Meta, Onsite - Product Sense / Strategy round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“Seemed straightforward at first.” The rest of the author's notes on Software Engineer interview at Meta, 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 it smelled like a hypergeometric setup but blanked on the exact expected value formula mid-explanation.” The rest of the author's notes on Data Scientist interview at Meta, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“Knew I needed a stack pretty quickly but fumbled the off-by-one stuff with the timestamps.” The rest of the author's notes on Software Engineer interview at Meta, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“Classic sliding window setup.” The rest of the author's notes on Software Engineer interview at Meta, 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 listing features and the interviewer kind of just waited.” The rest of the author's notes on Product Manager interview at Meta, Onsite - Product Sense / Strategy round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“I spent the first two minutes just restating the problem back, which felt like stalling but actually helped me get my footing.” The rest of the author's notes on Data Scientist interview at Meta, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.