How should I practice Meeting Rooms?

Start by reading the full statement, solve the visible examples, then compare the pattern against related ByteDance phone screen problems in FastPrep.

Is Meeting Rooms associated with ByteDance?

FastPrep tags this as a ByteDance phone screen coding practice problem when the problem catalog has that company and stage context.

Meeting Rooms

ByteDance● EasyNEW GRADPHONE SCREEN

Problem statement

You are given a list of meetings, intervals, where intervals[i] = [start_i, end_i]. A meeting takes up the time from start_i up to, but not including, end_i.

Return true if one person can attend every meeting, meaning no two meetings overlap. Otherwise return false.

Two meetings overlap when they share some moment of time. A meeting that ends at time t and another that starts at time t do not overlap.

Function

canAttendMeetings(intervals: int[][]) → boolean

Examples

Example 1

intervals = [[9,12],[13,15],[11,14]]return = false

The meetings [9, 12] and [11, 14] both take up the time from 11 to 12, so one person cannot attend both.

Example 2

intervals = [[4,7],[1,4],[7,10]]return = true

In start order the meetings are [1, 4], [4, 7], and [7, 10]. Each one starts exactly when the one before it ends, which is allowed.

Example 3

intervals = [[5,8]]return = true

There is only one meeting, so nothing can overlap.

Constraints

1 <= intervals.length <= 5000
intervals[i].length == 2
0 <= start_i < end_i <= 10^6