Parse a query string in Rust
Rust interview exercise on Practical, difficulty 2 of 3. Solve it in the editor beside a worked example; the tests run the moment you do.
Write parse_query(qs) that turns "?page=2&sort=name" into ordered (key, value) pairs. Accept a leading "?", skip empty segments, give a key without "=" an empty value, and split only at the first "=". No percent-decoding.
Each exercise pairs a worked example with a twin problem to solve in a real editor; the tests run the moment you do. Progress is saved in your browser, and in your account if you sign in.