Leetcode 252 Meeting Rooms

伊薩卡鋼琴家發表於2016-01-29
Given an array of meeting time intervals consisting of start and end times [[s1,e1],[s2,e2],...] (si < ei), determine if a person could attend all meetings.
For example,
Given [[0, 30],[5, 10],[15, 20]],
return false.
Understand the problem:

The problem looks very similar to the merge interval and insert intervals. So the idea is still the same: first sort the intervals according to the start times, then check if there is any overlap. 

所以正確的解法是將intervals中所有的interval都按start time進行排序,然後判斷是否有overlap,如果有overlap就返回false,否則返回true。


The idea is from here

http://buttercola.blogspot.com/2015/08/leetcode-meeting-rooms.html



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