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You are given an array of events where events[i] = [startDay_i, endDay_i]. Every event i starts at startDay_i_ and ends at endDay_i.
You can attend an event i at any day d where `startDay_i Example 1:
Input: events = [[1,2],[2,3],[3,4]] Output: 3 Explanation: You can attend all the three events. One way to attend them all is as shown. Attend the first event on day 1. Attend the second event on day 2. Attend the third event on day 3.
Example 2:
Input: events= [[1,2],[2,3],[3,4],[1,2]] Output: 4
Constraints:
- `1 <= events.length <= 10^5`
- `events[i].length == 2`
- `1 <= startDay_i <= endDay_i <= 10^5`