zoukankan      html  css  js  c++  java
  • 729. My Calendar I

    c++代码

    判断两个线段是否重复。

    fast-rcnn目标检测中nms代码中有这个代码段:)

    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.

    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].
    class MyCalendar {
    public:
        vector<pair<int,int>> vec;
        MyCalendar() {
            
        }
        
        bool book(int start, int end) {
            for(int i=0;i<vec.size();++i){
                if(min(vec[i].second,end)>max(vec[i].first,start))
                {
                    //vec.push_back(pair<int,int>(start,end));
                    return false;
                }      
            }
            vec.push_back(pair<int,int>(start,end));
            return true;
        }
    };
    
    /**
     * Your MyCalendar object will be instantiated and called as such:
     * MyCalendar obj = new MyCalendar();
     * bool param_1 = obj.book(start,end);
     */
  • 相关阅读:
    项目管理5大过程9大知识域44个定义
    linux centos6.5 修改ip地址
    .Net 6 已知问题集
    第二次阅读作业——程志
    采访大四学长整理笔记
    c#
    团队作业三两感想 by 程志
    搞定3G上网
    高焕堂Android應用框架原理與程式設計代码补遗(一)
    要素类属性内容全角换半角
  • 原文地址:https://www.cnblogs.com/learning-c/p/9281314.html
Copyright © 2011-2022 走看看