Rolling window rate limiter

Given a chronological list of request timestamps (integer seconds, non-decreasing) for a single client, a window length W seconds, and a limit of L requests per rolling window, implement a sliding-window rate limiter. A request at time t is allowed only if, counting it, the number of allowed requests in the half-open interval (t-W, t] does not exceed L; otherwise it is rejected and does NOT count toward future windows. Return a list of booleans, one per request, indicating allowed (True) or rejected (False).