NIKE Software Development Engineer 3 Interview Questions and Answers

In 60 mins, you have to write a text wrap library. Code should be clean, and modular and should have ways to make it more usable.

Q1. Design a mook-my-show type of system for companies. Companies can define schedule of event, number of seats available and prices if any. Only employee of company should be able to book show.
Ans. 
Design a system for companies to schedule events, manage seats, and allow only employees to book shows.
• Create a database to store company information, event schedules, seat availability, and employee details

• Implement an authentication system to verify employee credentials

• Develop a user interface for companies to define event schedules, seat availability, and prices

• Allow employees to search and book shows based on their...read more
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2 DSA questions and some MCQ on Java and Spring

Q1. Longest palindromic substring
Ans. 
A palindromic substring is a string that reads the same forwards and backwards.
• Use dynamic programming to find the longest palindromic substring.

• Start by considering each character as the center of a potential palindrome.

• Expand outwards from each center to check for palindromes of odd and even lengths.
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Q2. Remove duplicates in place from a 1D array
Ans. 
Remove duplicates from a 1D array of strings in place
• Iterate through the array and use a HashSet to keep track of unique elements

• Replace duplicates with null or an empty string to remove them in place
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Q1. Project discussion
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Q2. Search min element in a rotated sorted array with duplicate elements
Ans. 
Search for the minimum element in a rotated sorted array with duplicate elements.
• Use binary search to find the minimum element in the rotated sorted array.

• Handle the case where duplicate elements are present by adjusting the search conditions.

• Consider cases where the array is not rotated or contains only one element.
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Q3. Ways of declaring singleton class
Ans. 
A singleton class is a class that can only have one instance created throughout the application.
• Declare a private static instance variable of the class

• Create a private constructor to prevent external instantiation

• Provide a public static method to access the instance
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Q1. Project discussion
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Q2. Behavioural questions
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Q1. DSA Problem solving
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Ds Algo question on Merge Interval with JUnit Coverage

System Design discussion covering DR strategy, Rest API details, handling offline and online system processing.

Q1. How you motivate Team
Ans. 
Motivating a team involves setting clear goals, providing support and recognition, fostering a positive work environment, and promoting collaboration.
• Set clear goals and communicate them effectively

• Provide support and resources to help team members achieve their goals

• Recognize and reward team members for their achievements

• Create a positive work environment by promoting open communication and trust

• Encourage collaboratio...read more
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Q2. Tell me about your weakness
Ans. 
I tend to be overly critical of my own work.
• I have high standards for myself and strive for perfection.

• I often spend extra time reviewing and revising my work to ensure it meets my expectations.

• I sometimes struggle with accepting compliments or recognizing my achievements.

• I am actively working on finding a balance between self-improvement and self-acceptance.
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Q3. Offline store management system
Ans. 
An offline store management system is a software that helps manage inventory, sales, and customer data in a physical store without an internet connection.
• The system should have a database to store product information, sales data, and customer information.

• It should have a user-friendly interface for employees to input and access data.

• The system should be able to generate reports on sales, inventory levels, and customer ...read more
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Q4. Write code for Boggle game
Ans. 
Code for Boggle game
• Create a 2D grid of letters

• Generate all possible words using the grid and a dictionary

• Implement a search algorithm to find valid words

• Track score based on word length and rarity

• Allow for multiple players and rounds
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Q5. Find overlapping interval to calculate final payment for store worker
Ans. 
Finding overlapping intervals for calculating final payment of store worker
• Identify all the intervals for which the worker is eligible for payment

• Check for overlapping intervals and merge them

• Calculate the final payment based on the merged intervals
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Q1. System Design Questions, Situation based problems of system design
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Q2. Data Structure Coding question of HashMap
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Q1. Again System design, Question from your project and architecture of your project
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Q1. Find Mirror of tree
Ans. 
To find the mirror of a tree, we need to swap the left and right children of each node recursively.
• Start from the root node of the tree

• Swap the left and right children of the current node

• Recursively call the mirror function on the left and right subtrees
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Q2. Find median in two sorted arrays
Ans. 
Merge two sorted arrays and find the median
• Merge the two arrays into one sorted array

• Calculate the median based on the length of the merged array

• Handle cases where the total length is even or odd
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React Context Question

Q1. React js questions like Dom manipulation, useCallback and useMemo these kind of questions
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Q2. Create some dynamic buttons with a json data and whenever you click on that you need to maintain active and inactive states and also you need to show the content of the button based on the json data whenev...read more
Ans. 
Create dynamic buttons with JSON data, maintain active/inactive states, and show content on click
• Create buttons dynamically using JSON data

• Toggle between active and inactive states on click

• Display button content based on JSON data on click
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Q1. More advanced react based questions like test cases handling and redux state management techniques
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Q2. Prop drilling concepts
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Q1. More about your projects you have worked on and also front end technical basic questions
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Q1. Why Lowe's only
Ans. 
Lowe's is a leading home improvement retailer with a strong focus on technology and innovation.
• Lowe's has a strong reputation for investing in technology and innovation within the home improvement industry.

• I am impressed by Lowe's commitment to digital transformation and their use of cutting-edge tools and technologies.

• I believe Lowe's offers a challenging and rewarding environment for software engineers to grow and de...read more
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Q2. What are your expectations here nd all
Ans. 
I expect a challenging work environment, opportunities for growth, and a supportive team.
• Challenging work that allows me to utilize my skills and learn new technologies

• Opportunities for career advancement and professional development

• A supportive team that fosters collaboration and growth

• Clear communication and expectations from management
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