Railway Seat Availability Counter
Railway Seat Availability Counter
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At IRCTC in Mumbai, Arjun checks seat availability on a Delhi express train. He has an array where 1 means seat is booked and 0 means empty. Count the empty seats.
Approach
Given an array of seat statuses (1=booked, 0=empty), count the number of empty seats.
Input
5
0 1 0 0 0 1 0 1 0 0 0 1 1 1
Output
8
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