# Meeting Rooms

## Problem

Given an array of meeting time intervals where intervals[i] = [starti, endi], determine if a person could attend all meetings.

Example 1:

```
Input: intervals = [[0,30],[5,10],[15,20]]
Output: false
```

Example 2:

```
Input: intervals = [[7,10],[2,4]]
Output: true
```

Constraints:

- 0 <= intervals.length <= 104
- intervals[i].length == 2
- 0 <= starti < endi <= 106

## Solution

```
class Solution {
public boolean canAttendMeetings(int[][] intervals) {
Arrays.sort(intervals, (l, r) -> {
return Integer.compare(l[0], r[0]);
});
var t = -1;
for (var i : intervals) {
if (t > i[0]) {
// conflict
return false;
} else {
t = i[1];
}
}
return true;
}
}
```