[daily question] 731. My schedule II

Reference resources ：
The explanation of the great God ：https://leetcode.cn/problems/my-calendar-ii/solution/by-lfool-nodi/

Segment tree blog ：https://blog.csdn.net/m0_58058653/article/details/125873412

731. My schedule II
Achieve one MyCalendar Class to store your schedule . If the time to be added does not result in triple booking , You can store this new schedule .

MyCalendar There is one book(int start, int end) Method . It means in start To end Add a schedule in time , Be careful , The time here is Semi open interval , namely [start, end), The set of real Numbers x For the range of , start <= x < end.

When the three schedules have some time overlap （ For example, all three schedules are at the same time ）, There will be triple bookings .

Every time you call MyCalendar.book When the method is used , If the schedule can be successfully added to the calendar without triple booking , return true. otherwise , return false And don't add the schedule to the calendar .

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