My Calendar


You are implementing a program to use as your calendar. We can add a new event if adding the event will not cause a double booking.

A double booking happens when two events have some non-empty intersection (i.e., some moment is common to both events.).

The event can be represented as a pair of integers start and end that represents a booking on the half-open interval [start, end), the range of real numbers x such that start <= x < end.

Implement the MyCalendar class:

  • MyCalendar() Initializes the calendar object.
  • boolean book(int start, int end) Returns true if the event can be added to the calendar successfully without causing a double booking. Otherwise, return false and do not add the event to the calendar.


cal = MyCalendar(), 20) # return True, 25) # return False, It can not be booked because time 15 is already booked by another event., 30) # return True, The event can be booked, as the first event takes every time less than 20, but not including 20.


class MyCalendar:

    def __init__(self):

    def book(self, start: int, end: int) -> bool:

# Your MyCalendar object will be instantiated and called as such:
# obj = MyCalendar()
# param_1 =,end)


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