ly Ground, 1st, 2nd, 3rd, 4th and 5th floors. The elevator can travel going up (unless they are at the 5th floor) or going down (unless they are at the ground floor). The elevator can only contain one passenger (which is the current user of the program). Initially the elevator begins and loads at the Ground Floor. If the user wants to travel to the 5 th floor, the elevator shall go up to the said floor. It is the option of the user if they want to alight the elevator or not on the 5th floor or any floor on the way. Realistic rules should apply: If the user alights at the 4th floor, when they ride the elevator again, it should begin traveling from the 4th

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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in c Elevator (or Lift as referred to by the English folks) Simulator
Simulate an Elevator-Controller Program. The Elevator should be able to travel between five floors
namely Ground, 1st, 2nd, 3rd, 4th and 5th floors. The elevator can travel going up (unless they are
at the 5th floor) or going down (unless they are at the ground floor). The elevator can only contain
one passenger (which is the current user of the program). Initially the elevator begins and loads at
the Ground Floor. If the user wants to travel to the 5
th
floor, the elevator shall go up to the said
floor. It is the option of the user if they want to alight the elevator or not on the 5th floor or any
floor on the way.
Realistic rules should apply: If the user alights at the 4th
floor, when they ride the elevator again, it
should begin traveling from the 4th
floor and from there choose to go up or down. Your program
should have some validation: meaning, only the valid characters should be received by the program
(G, 1, 2, 3, 4, 5). If the user keys-in “A” or “-1”, the program should be able to handle such input and
not crash and ask for a correct valid input.
Keep your program modular (use functions), and apply all lessons and concepts learned in class.
Indicate in the comments (per item) all the lessons and concepts used and if possible indicate the
specific parts and syntax applied. Theelevator can also travel from B1 to B3 (Basement 1 to 3). The elevator can also allow newpassengers to ride the elevator during the trip of the first user. The number of passengers per trip can vary.
Others: Do not use GOTO statements 

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