How to Solve Cinema Seat Allocation Problem
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Cinema Seat Allocation
A cinema has n rows of seats, numbered from 1 to n and there are ten seats in each row, labelled from 1 to 10 as shown in the figure above. Given the array reservedSeats containing the numbers of seat...
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Understanding the Cinema Seat Allocation Problem
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Problem Statement
A cinema has n rows of seats, numbered from 1 to n and there are ten seats in each row, labelled from 1 to 10 as shown in the figure above. Given the array reservedSeats containing the numbers of seats already reserved, for example, reservedSeats[i] = [3,8] means the seat located in row 3 and labelled with 8 is already reserved. Return the maximum number of four-person groups you can assign on the cinema seats. A four-person group occupies four adjacent seats in one single row. Seats across an aisle (such as [3,3] and [3,4]) are not considered to be adjacent, but there is an exceptional case on which an aisle split a four-person group, in that case, the aisle split a four-person group in the middle, which means to have two people on each side.
Cinema Seat Allocation
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Examples
n = 3, reservedSeats = [[1,2],[1,3],[1,8],[2,6],[3,1],[3,10]]4The figure above shows the optimal allocation for four groups, where seats mark with blue are already reserved and contiguous seats mark with orange are for one group.
n = 2, reservedSeats = [[2,1],[1,8],[2,6]]2n = 4, reservedSeats = [[4,3],[1,4],[4,6],[1,7]]4Constraints
1 <= n <= 10^91 <= reservedSeats.length <= min(10*n, 10^4)reservedSeats[i].length == 21 <= reservedSeats[i][0] <= n1 <= reservedSeats[i][1] <= 10All reservedSeats[i] are distinct.How Interview Coder Helps with Leetcode Problems
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