H&M Associate Software Engineer Interview Questions and Answers

Q1. Coding question: Given a sorted array of numbers. All numbers have freq of 2 in array except one number. Find that number with T.C of logn
Ans. 
Find the single number in a sorted array with frequency of 2 for all other numbers.
• Use binary search to find the number with different frequency.

• Check if the mid element is at even or odd index to determine which side to search next.

• Example: Input array [1, 1, 2, 2, 3, 3, 4, 4, 5] should return 5.
Answered by AI
Add your answer
Q2. Print left view of tree
Ans. 
Print the left view of a tree by traversing the tree from left to right at each level
• Traverse the tree using level order traversal

• Print the first node at each level encountered during traversal
Answered by AI
Add your answer

Q1. Detailed discussion on projects
Add your answer
Q2. Questions on O.S like about deadlocks,etc..
Add your answer

Q1. Basic questions for ADF
Add your answer

Q1. Basic HR round for CTC and notice period
Add your answer

Q1. What is the XPath?
Ans. 
XPath is a query language used for selecting nodes from an XML document.
• XPath stands for XML Path Language

• It is used to navigate through elements and attributes in an XML document

• XPath uses path expressions to select nodes or node-sets in an XML document

• Example: /bookstore/book[1]/title selects the title of the first book in a bookstore
Answered by AI
Add your answer
Q2. Difference between static and non-static?
Ans. 
Static variables are shared among all instances of a class, while non-static variables belong to individual instances.
• Static variables are declared using the 'static' keyword, while non-static variables are not.

• Static variables are initialized only once at the start of the program, while non-static variables are initialized each time an instance is created.

• Static variables can be accessed using the class name, while no...read more
Answered by AI
Add your answer

Q1. Design a distributed system with 10mil users
Ans. 
Design a distributed system to handle 10 million users.
• Use a microservices architecture to break down the system into smaller, manageable components.

• Implement load balancing to distribute user requests across multiple servers.

• Utilize a distributed database to store user data and ensure scalability.

• Implement caching mechanisms to improve performance and reduce database load.

• Use message queues for asynchronous communicat...read more
Answered by AI
Add your answer

Medium leetcode question on graph was given by third party interviewer BarRaiser

Q1. Introduction, experience why we should hire you
Add your answer
Q2. How you complete target.
Ans. 
To complete targets, I focus on building strong relationships with clients, understanding their needs, and providing tailored solutions.
• Developing a comprehensive sales strategy

• Identifying potential clients and leads

• Building and maintaining relationships with clients

• Understanding client needs and offering tailored solutions

• Setting clear goals and targets

• Regularly tracking progress and making necessary adjustments

• Collab...read more
Answered by AI
Add your answer

India gdp growth and make in india

Q1. Global market and em market
Add your answer