Lowe's Associate Software Engineer Interview Questions and Answers

2 coding questions to be solved in 60 minutes. First question was based on arrays and second based on binary tree.

Q1. The interviewer asked about the projects i mentioned in the resume. My first project was based on DBMS so he started by asking basic database questions like what key points to be considered while designing...read more
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Q2. Next he asked me to write few SQL queries using joins and also asked what is a foreign key, types of joins.
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Q3. According to my certifications mentioned in my resume, he started with DSA. He asked me to write code for inssertion and deletion of a node in a Linked list using class and functions. He asked abt JVM, JDK...read more
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Q4. At last, he asked me an aptitude question to find the rate when amount, principal and time is given.
Ans. 
To find the rate of interest when amount, principal, and time are given, use the formula: Rate = (Amount - Principal) / (Principal * Time).
• Formula: Rate = (Amount - Principal) / (Principal * Time)

• Example: If Amount = 1200, Principal = 1000, Time = 2 years, then Rate = (1200 - 1000) / (1000 * 2) = 0.1 or 10%.

• Ensure to convert the rate into percentage by multiplying by 100.

• This formula is derived from the simple interest...read more
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Q1. All behavioral questions were asked by HR. He first started with my internships and what tools i used for projects. Make sure you know every detail of every project done during internship.
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Q2. He asked about what difficulties and challenges i faced during working on projects and how i overcame them. Also asked about team leading and its importance.
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Q3. Finally, he asked why Lowe's and why do you think you fit for the role. Then he asked what do you know about the company and its values.
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Q4. At last, he asked if i have any offer in hand and the salary offering.
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Q1. What is your understanding of the React Virtual DOM, Lifecycle Methods, props, keys, the differences between useMemo and useCallback, and Lazy Loading?
Ans. 
React's Virtual DOM optimizes rendering, while lifecycle methods manage component states and props facilitate data flow.
• Virtual DOM: A lightweight copy of the actual DOM that React uses to optimize updates and rendering performance.

• Lifecycle Methods: Functions like componentDidMount, componentDidUpdate, and componentWillUnmount that manage component behavior during its lifecycle.

• Props: Short for properties, they are us...read more
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Q2. Did you face any challenging questions regarding your personal project, particularly about the functionalities implemented?
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Trim bst, subtraction LL

Q1. Combination sum
Ans. 
Combination sum problem involves finding all unique combinations of numbers that sum to a target value.
• Given an array of distinct integers and a target sum, find all unique combinations that add up to the target.

• Each number can be used multiple times in the combination.

• Example: For nums = [2, 3, 6, 7] and target = 7, the combinations are [7] and [2, 2, 3].

• Use backtracking to explore all possible combinations efficientl...read more
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Q2. Target element index in Rotated sorted array
Ans. 
Finding index of target element in a rotated sorted array.
• Use binary search to find the pivot point where the array is rotated.

• Determine which half of the array the target element lies in.

• Perform binary search on the appropriate half to find the target element index.
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Q3. Longest substring with no repeated characters
Ans. 
Find the longest substring in a given string with no repeated characters.
• Use a sliding window approach to keep track of the current substring.

• Use a hash set to keep track of the characters in the current substring.

• If a repeated character is found, move the start of the window to the next character after the first occurrence of the repeated character.

• Update the maximum length of the substring as the window slides throug...read more
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Q4. Reverse words in a string
Ans. 
Reverse the order of words in a given string.
• Split the string into an array of words using space as a delimiter.

• Reverse the array of words.

• Join the array of words back into a string using space as a separator.
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Q1. Open for relocation
Ans. 
Yes, I am open for relocation.
• I am willing to relocate for the right opportunity

• I am open to exploring new places and cultures

• I understand that relocation may be necessary for career growth
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There were 2 coding questions and mcqs

Q1. Data structures and algorithms
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Q2. Questions about tools used in projects
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Q1. Basic hr questions
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