BusSeatNumbering.java

/*
Bus Seat Numbering
There is a bus with 30 seats. The seats are numbered from 1 to 30, and the numbering is as depicted in this image.

As can be seen in the image, the bus is divided into two decks - The Lower deck, and the Upper deck, with 15 seats each. And some of the seats come as Single and some as Double. For example, Seats 1 and 2 are Double, whereas Seat 11 is a Single.

You will be given a Seat number, and your job is to classify it as one of these 4 types:

Lower Single
Lower Double
Upper Single
Upper Double

Input Format
The first line of input will contain a single integer 
T
, denoting the number of test cases.
Each test case consists of a single line of input which contains a single integers 
N
 — the seat number.

Output Format
For each test case, output on a new line, the type of seat.

Constraints
1≤T≤100
1≤N≤30

Sample 1:
Input
5
6
28
16
13
10

Output
Lower Double
Upper Single
Upper Double
Lower Single
Lower Double
*/

import java.util.Scanner;

public class BusSeatNumbering {
    public static void main(String[] args) throws java.lang.Exception {
        // your code goes here
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();

        for (int i = 0; i < n; i++) {
            int x = sc.nextInt();

            if (x <= 10) {
                System.out.println("Lower Double");
            } else if (x <= 15) {
                System.out.println("Lower Single");
            } else if (x <= 25) {
                System.out.println("Upper Double");
            } else {
                System.out.println("Upper Single");
            }
        }

    }
}