My Calendar I

Implement a calendar system where you can add a new event if the event will not cause a double booking. Input Implement the MyCalendar class: MyCalendar() Initializes the calendar object. bool book(int start, int end) Attempts to add the event [start, end) to the calendar. An event represents the time range [start, end), and is a half-open interval. Return true if the event can be added to the calendar successfully without causing a double booking. Otherwise, return false and do not add it. Example Input: `[ Example Input {"command": "book", "start": 10, "end": 20}