Programming fundamentals

Programming fundamentals

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Question 54

A hotel booking system handles room registrations across different blocks. Each block has a distinct code prefix, as shown in the table:

Prefix	Block Name
EX	Executive Suite
DE	Deluxe Wing
ST	Standard Wing

A program is used to reserve a room. The program:

asks the user to enter the block prefix
checks if the prefix is valid using the function VerifyPrefix()
if the prefix is valid, it asks for the room number
it combines the prefix and room number to create a unique room code
calls the ReserveRoom() procedure

01  blockCode = input("Enter block prefix: ")
02  isValid = VerifyPrefix(blockCode)
03  if isValid == true then
04      roomNum = input("Enter room number: ")
05      roomCode = blockCode + roomNum
06      ReserveRoom(roomCode)
07  endif

Give the line number where concatenation is used.

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