problem0729

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729. My Calendar I

题目

Implement a MyCalendar class to store your events. A new event can be added if adding the event will not cause a double booking.

Your class will have the method, book(int start, int end). Formally, this represents a booking on the half open interval [start, end), the range of real numbers x such that start <= x < end.

A double booking happens when two events have some non-empty intersection (ie., there is some time that is common to both events.)

For each call to the method MyCalendar.book, return 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.

Your class will be called like this: MyCalendar cal = new MyCalendar(); MyCalendar.book(start, end) Example 1:

MyCalendar();
MyCalendar.book(10, 20); // returns true
MyCalendar.book(15, 25); // returns false
MyCalendar.book(20, 30); // returns true
Explanation:
The first event can be booked.  The second can't because time 15 is already booked by another event.
The third event can be booked, as the first event takes every time less than 20, but not including 20.

Note:

• The number of calls to MyCalendar.book per test case will be at most 1000.
• In calls to MyCalendar.book(start, end), start and end are integers in the range [0, 10^9].

解题思路

见程序注释

Documentation

Index

• type MyCalendar
  • func Constructor() MyCalendar
  • func (m *MyCalendar) Book(start int, end int) bool

Types

type MyCalendar

type MyCalendar struct {
	// contains filtered or unexported fields
}

MyCalendar 是我的日历类

func Constructor

func Constructor() MyCalendar

Constructor 构建 MyCanlendar

func (*MyCalendar) Book

func (m *MyCalendar) Book(start int, end int) bool

Book 可以预约时间