Seat Totals Across Inclusive Flight Bookings

### Problem Flights are labeled 1 through n. A booking `[first,last,seats]` reserves seats seats on every flight from first through last, inclusive. Return n totals in flight-label order: output index i-1 contains the total for flight i. ```cpp class Solution { public: vector<int> corpFlightBookings(vector<vector<int>>& bookings, int n); }; ``` ### Examples **Example 1:** ```text Input: bookings = [[1,3,4],[2,2,7]], n = 3 Output: [4,11,4] Explanation: The middle flight receives both reservations; the others receive4 seats each. ``` **Example 2:** ```text Input: bookings = [[2,4,3]], n = 4 Output: [0,3,3,3] Explanation: Flight1 has no booking; flights2 through4 each receive3 seats. ``` ### Constraints - There are 1 to 20000 flights and 1 to 20000 bookings. - Every booking has three entries with `1 <= first <= last <= n`. - Each seats value is an integer between 1 and 10000. ### Contract considerations Flight labels start at 1, while returned array indices start at 0. ```hint Read the boundary condition Are both booking endpoints included, and which returned position corresponds to flight 1? ``` ### Boundary reminders Flight labels start at 1, while returned array indices start at 0.