Answered: Hello i needed to Write a program, on…

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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Hello i needed to Write a program, on code.org, to simulate the problem and display the answer on the screen.

Problem: A new high school has just opened with an enrollment of 1000 students. The janitor closed all of the lockers and put a new coat of paint on the doors which are numbered 1 through 1000. The first student enters the school and opens all the lockers. The second student follows and closes every second locker starting with the second locker. The third student enters the school and reverses every third locker beginning with locker #3. This procedure continues until all 1000 students have passed by all the lockers. Which lockers will still be open when this procedure is finished?

Write a program to simulate this problem and display the answer on the screen.

Expert Solution

Step 1

The First student enters the school and opens all lockers so all locker are set to 1 firstly.
after that, iterating for loop for students between 2 to 1000 and iterating for loop for lockers between 1 to 999.
Adding condition when second student enters and closes every second locker as well as when third student enters into school and reverse every third locker from beginning.
continue iterating this loop until all 1000 students have passed by all lockers.
Displaying all open lockers after all process are finished.
Displaying total number of open lockers.

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