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Code RoomVerify a vector chunking function
MediumPrep Room Coding #4395

Verify a vector chunking function

Vibe & agenticAlgorithms & data structuresMid–Senior~14 min

An AI agent wrote a Rust function `chunk<T>(items: Vec<T>, size: usize) -> Vec<Vec<T>>` that splits a vector into fixed-size chunks. It compiles and the basic case looks right. You don't want to read the indexing logic line-by-line. What quick check do you write to confirm it's correct, and which inputs matter most?

Implement
chunk_result_is_valid(items: list[int], size: int, result: list[list[int]]) → bool
Examples
in[[1,2,3,4,5],2,[[1,2],[3,4],[5]]]outtrue
in[[1,2,3,4,5],2,[[1,2],[3,4]]]outfalse
in[[1,2,3],0,[]]outtrue
What a strong answer looks like

Treat the AI’s output as a draft to verify, not an answer to trust. Name the specific flaw and the input that triggers it, say how you’d catch it (tests, edge cases, reading critically), and how you’d re-prompt or decompose to get it right.

0:00 of about 14 min

Vibe & agentic: describe the solution in plain language (or narrate it) and the coach grades your approach.

Which questions mattered is sealed until you submit. Telling you now would just be handing over the edge cases.