Unstop Challenge

Unstop's Full Stack Developer Challenge

Problem Statement

• There are 80 seats in a coach of a train with only 7 seats in a row and last row of only 3 seats. For simplicity, there is only one coach in this train.
• One person can reserve up to 7 seats at a time.
• If person is reserving seats, the priority will be to book them in one row.
• If seats are not available in one row then the booking should be done in such a way that the nearby seats are booked.

Solution

• The problem scenario involves a train coach with 80 seats, arranged in rows. Each seat can be in one of two states: empty ('0') or booked ('1'). The seat status is represented by a string called "all_seats" with a length of 80.
• To persist the seat status, the string "all_seats" is stored in a database. This allows the program to save the changes made to the seat reservations.
• logic in code, areSeatsAvailable() function checks if a given row has a consecutive block of empty seats that can accommodate a specific number of seats. It takes a row of seats ($row) and the desired number of seats to be reserved ($numSeats)
• The reserveSeats() function is responsible for reserving seats in the train coach. It takes two parameters: the coach array ($coach) and the desired number of seats to be reserved ($numSeats).
• By storing the "all_seats" string in a database, the seat reservations can be persisted across different program runs. This allows the program to maintain the latest seat status even after restarting or closing the application.

How to run application

• Download the project zip from the github [https://github.com/KunalPandharkar/Unstop-Challenge]
• Install all project dependencies by running command

  composer install

• Set up the environment file Copy the *.env.example file to .env in the project root.
• Update the .env file with the appropriate configuration details (database settings etc.) for your local environment.
• Generate an application key:

  php artisan key:generate

• Start the Xampp server. [MYSQL]
• Run database migrations:

  php artisan migrate:fresh

• *Very Important : database seeder which inserts the string with length of 80 in the table.

  php artisan db:seed

• Run the application:

  php artisan serve

Files used in project

app/Http/Controllers/TicketBookingController

database/migrations/

database/seeders/TicketbookingSeeder

resources/views/welcome.blade.php

resources/views/ticket-info.blade.php

routes/web.php

About Me

Full stack web developer having an experience of developing and deploying successful projects as per client requirements and specifications, looking for a challenging role in reputable organization to utilize my skills

? Links