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:
    十天冲刺开发第六天个人工作总结
    十天冲刺开发第五天个人工作总结
    人月神话阅读笔记1
    第六周进度条
    构建之法阅读笔记6
    连通数组的最大子数组和
    团队项目成员和题目
    第五周进度条
    四则运算———安卓版
    构建执法阅读笔记5
  • 原文地址:https://www.cnblogs.com/learning-c/p/9281314.html
Copyright © 2011-2022 走看看