Concurrent Event Flow

In a system where several events occur, these events can happen concurrently, possibly changing some global states. Design a data structure to capture the event sequence and the changes of global states in real-time. Your data structure should support the following operations: log_event(event_id: int, timestamp: int): Record an event occurrence. update_state(state_id: int, state_value: int): Update a global state value. get_event_order() -> List[int]: Return a list of event IDs recorded in chronological order. get_state_change(state_id: int) -> List[int]: Return a list of all updated values for that state_id in order of occurrence. Please implement these functionalities. Assume event_id and state_id are unique integer identifiers. Input-output Example Example 1: log_event(1, 100) log_event(2, 150) update_state(1, 10) update_state(1, 20) get_event_order() get_state_change(1) Output: [1, 2] [10, 20] Example Input log_event(3, 50) log_event(4, 200) update_state(2, 5) update_state(1, 20) get_event_order() get_state_change(1)