Dasher Naive Pay (Active-time pay with overlapping orders)

Dasher Naive Pay (Active-time pay) You are a downstream service. Given an event list from upstream, compute a Dasher’s total base pay. Pay rules Base rate: 0.3 USD per minute. For each order orderId: The order becomes active starting at the ACCEPT event time (inclusive). The order stops being active starting at the FULFILL event time (inclusive). Multiplicity: if there are k active orders during a time span, the pay rate for that span is: k * 0.3 USD/min Sum pay over all time spans and return the total, rounded to 2 decimals. Input An event list events, each event has: time: integer timestamp in minutes. orderId: unique order id (string). action: only ACCEPT or FULFILL. The list may be unsorted. If multiple events share the same time, process ACCEPT before FULFILL. Output Return the total pay as a floating number rounded to 2 decimals. Example Events: (375, "A", ACCEPT) // 06:15 (378, "B", ACCEPT) // 06:18 (396, "A", FULFILL) // 06:36 (405, "B", FULFILL) // 06:45 Output: 14.40 Constraints 1 <= len(events) <= 2 * 10^5 0 <= time <= 10^9 orderId is a non-empty string Task Implement calculateNaivePay(events) -> double. Example Input 4 375 A ACCEPT 378 B ACCEPT 396 A FULFILL 405 B FULFILL Output 14.40