Lowe's Full Stack Developer Interview Questions and Answers

Just discuss about java concept and exprience

Q1. Explain about last project and how to handle it.
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2 coding questions and a few MCQs

Q1. Asked to explain and optimise my solution from coding test
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Q1. Behavioral round. Asked about resume.
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Q1. General HR round and trying to find if you're a right fit for the company
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Q1. What is garbage collector in python
Ans. 
Garbage collector in Python is a built-in feature that automatically manages memory by reclaiming unused memory space.
• Garbage collector in Python helps in automatically deallocating memory of objects that are no longer in use.

• It prevents memory leaks by freeing up memory that is no longer needed.

• Python's garbage collector uses reference counting and a cycle-detecting algorithm to manage memory efficiently.
Answered by AI
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Q1. System design white board question
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Q1. Strategy design pattern, exception handling
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Q1. Behavioral interview questions
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Question about basic engineering subjects and coding

Q1. Interview about technical question
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Q2. Fabinocci series,trees
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The test was quite simple but the interviewer was not ready to accept the solution. Even with complete dry run and working output he denied the solution giving a very vague reason.

Q1. In this design round , they asked me to demonstrate how to build cowin app. Gave a complete overview including HLD and LLD for each showcased feature still got negative response.
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2 coding questions from dsa. one quest was from trees ds

Q1. Why did you choose target
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Q2. Minus points in you that you can share with us
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Round duration - 90 minutes
Round difficulty - Medium

This was a proctured online coding round where we had 2 questions to solve under 90 minutes . The questions were a bit lengthy but the implementation part was quite easy .

Q1. 
Encode the Message Problem Statement
Given a text message, your task is to return the Run-length Encoding of the given message.
Run-length encoding is a fast and simple method of encoding strings, repres...read more
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Q2. 
Make All Elements of the Array Distinct
Given an array/list ARR of integers with size 'N', your task is to determine the minimum number of increments needed to make all elements of the array distinct. You...read more
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Round duration - 50 Minutes
Round difficulty - Easy

This Round was DS/Algo + Core round and it started with formal introduction, followed by 3 problems. We first dicussed the
approach the time complexity and proper code covering all cases for the 2 coding problems . The last question was related to OS and was a bit theoretical .

Q1. 
Distinct Characters Problem Statement
Given a string STR, return all possible non-empty subsequences with distinct characters. The order of the strings returned is not important.
Example:
Input:
STR = ...read more
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Q2. 
Calculate Score of Balanced Parentheses
In this intellectual game, Ninja is provided with a string of balanced parentheses called STR. The aim is to calculate the score based on specific game rules. If Nin...read more
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Q3. Can you explain demand paging?
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Round duration - 40 Minutes
Round difficulty - Medium

I was given 2 preety good questions of DSA in this round . One was related to Binary Trees and the other was a good DP problem in which I struggled a bit but with some hints I was able to solve this problem too . The last question was related to OOPS and was preety easy .

Q1. 
Binary Tree Construction from Traversals Problem
Given the POSTORDER and PREORDER traversals of a binary tree, where the tree consists of N nodes with each node representing a distinct positive integer fr...read more
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Q2. 
Minimum Cost to Buy Oranges Problem Statement
You are given a bag of capacity 'W' kg and a list 'cost' of costs for packets of oranges with different weights. Each element at the i-th position in the list...read more
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Q3. Can you explain the concepts of static and dynamic polymorphism in Object-Oriented Programming?
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Round duration - 30 Minutes
Round difficulty - Easy

This is a cultural fitment testing round .HR was very frank and asked standard questions. Then we discussed about my role.

Q1. Why should we hire you?
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Q2. What do you know about the company?
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