Meeting Rooms
给一个数组, 里面是intervals, 问是不是有重叠的. 直接sort下就好.
class Solution {
public boolean canAttendMeetings(int[][] intervals) {
Arrays.sort(intervals, (a,b) -> a[0] - b[0]);
for(int i = 1; i < intervals.length; i++) {
if(intervals[i][0] < intervals[i-1][1])
return false;
}
return true;
}
}