Lowe's Interview Questions, Process, and Tips

Trim bst, subtraction LL

Q1. Combination sum
Add your answer
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.
Answered by AI
Add your answer
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
Answered by AI
Add your answer
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.
Answered by AI
Add your answer

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
Answered by AI
Add your answer

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.
Answered by AI
Add your answer
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
Answered by AI
Add your answer

Q1. Project discussion
Add your answer
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.
Answered by AI
Add your answer
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
Answered by AI
Add your answer

Q1. Project discussion
Add your answer
Q2. Behavioural questions
Add your answer

Q1. Kafka , heap stack
Add your answer
Q2. Mvc endpoint creation
Add your answer

Q1. Dsa on string please
Ans. 
Data structures and algorithms related to string manipulation in Java.
• Use built-in methods like indexOf(), substring(), and charAt() for string manipulation.

• Implement algorithms like string reversal, palindrome check, and string matching using DSA concepts.

• Consider using data structures like arrays, hashmaps, and linked lists for efficient string operations.
Answered by AI
Add your answer
Q2. Heap
Add your answer

Q1. System Design Questions, Situation based problems of system design
Add your answer
Q2. Data Structure Coding question of HashMap
Add your answer

Q1. Again System design, Question from your project and architecture of your project
Add your answer