Query string encoding
Build a URL query string from an ordered list of [key, value] pairs. Percent-encode both keys and values so the result is safe for a URL (space becomes %20, reserved characters like & = are escaped), join pairs with '&' and key/value with '='. Preserve the input order. Return an empty string for an empty list.
Implement
build_query(params: list[list[str]]) → strExamples
in
[[["q","hello world"],["lang","en"]]]out"q=hello%20world&lang=en"What a strong answer looks like
State your approach and its time/space complexity out loud before you optimize. Handle the edge cases (empty input, duplicates, overflow), and say why you chose this over the brute force. Green tests are the floor, not the grade.
0:00 of about 15 min
solution.py
InputExpectedGot
[[["q","hello world"],["lang","en"]]]"q=hello%20world&lang=en"not run yetsample