Medium · System Design

My Calendar I

Given a sequence of book(start, end) calls for half-open intervals [start, end), return for each call whether the interval can be added without overlapping any previously accepted booking (touching endpoints is allowed); accepted bookings are kept.

Examples

Example 1

{
  "books": [
    [10, 20],
    [15, 25],
    [20, 30]
  ]
}

Output: true, false, true

Example 2

{
  "books": [
    [10, 20],
    [30, 40],
    [5, 25],
    [12, 15],
    [20, 30],
    [25, 35]
  ]
}

Output: true, true, false, false, true, false

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