Go-Jek Interview Questions and Answers

Q1. Design a Parking Lot
Ans. 
Design a parking lot system with features like parking, retrieving, and displaying available spots.
• Create a class for ParkingLot with attributes like total spots, available spots, and a list of parked vehicles.

• Implement methods for parking a vehicle, retrieving a vehicle, and displaying available spots.

• Use data structures like arrays or lists to manage parked vehicles and available spots.
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Build a framework or to execute already given framework from the company

Technical and coding

Q1. About testing and scenarios and a program
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Q2. Convert roman to integers
Ans. 
Convert Roman numerals to integers
• Create a mapping of Roman numerals to integers

• Iterate through the input Roman numeral string from right to left

• If the current numeral is smaller than the one after it, subtract its value from the total, else add its value to the total
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Machine coding round, try to come up with at least one working requirement

Q1. Low level design
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Q2. Cant share the exact quesy
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Q1. High level design
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Q1. Hiring manager round
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Q1. Design A ticketinf system.
Ans. 
Design a ticketing system for managing and tracking tickets.
• Create a user-friendly interface for users to submit tickets.

• Implement a system for assigning tickets to appropriate teams or individuals.

• Include a feature for tracking the status of tickets and updating users on progress.

• Allow for prioritization of tickets based on urgency or impact.

• Generate reports on ticket resolution times and overall performance.

• Integrate...read more
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Solve a system design problem in 1 hour

Q1. Search word in a file
Ans. 
Search for a specific word in a file
• Read the file line by line

• Check each line for the search word

• Return the line number if word is found
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Q2. Design elevator system
Ans. 
Design elevator system for efficient and safe transportation
• Consider the number of floors in the building

• Implement algorithms for efficient elevator routing

• Include safety features such as emergency stop buttons

• Design user interface for passengers to select floors

• Utilize sensors for detecting weight and preventing overloading
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Mathematics, quant and logical

Leetcode mediums and oa coding round

Q1. What is K means
Ans. 
K-means is a popular clustering algorithm used to partition data points into K clusters based on similarity.
• K-means aims to minimize the sum of squared distances between data points and their respective cluster centroids.

• It requires the number of clusters (K) to be specified in advance.

• The algorithm iteratively assigns data points to the nearest cluster centroid and updates the centroids until convergence.

• K-means is se...read more
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Q2. Type 1 and Type 2 error
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