// 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.

/**

* Definition for an interval.

* public class Interval {

* int start;

* int end;

* Interval() { start = 0; end = 0; }

* Interval(int s, int e) { start = s; end = e; }

* }

*/

public class MeetingRooms {

public boolean canAttendMeetings(Interval[] intervals) {

if(intervals == null) {

return false;

}

// Sort the intervals by start time

Arrays.sort(intervals, new Comparator<Interval>() {

public int compare(Interval a, Interval b) { return a.start - b.start; }

});

for(int i = 1; i < intervals.length; i++) {

if(intervals[i].start < intervals[i - 1].end) {

return false;

}

}

return true;

}

}