def pageCount(n: Int, p: Int): Int = {
     //Sample book: 1 - 2 3 - 4 5 - 6 7 - 8 9 - 10 11
        val lastPage = if(n % 2 == 0) n+1 else n
        val firstPage = 0
        
        val fromFirst: Int = p/2
        val fromLast: Int = (lastPage - p)/2
        
        Array(fromFirst, fromLast).min
    }