Binmile technology interview experience Real time questions & tips from candidates to crack your interview
SDE - 1
Binmile technology
3 rounds | 3 Coding
problems
Selected Interview preparation journey
Journey
My journey began with a passion for technology, learning the basics through online courses and projects. I gained practical experience through internships and honed my skills by practicing with peers. When I landed the interview, I focused on sharing my enthusiasm and relevant experiences. Persistence and a positive mindset were crucial to my success, and I hope this inspires others to keep pushing forward in their own journeys.
Application story
I researched companies that matched my interests and tailored my resume for each application. I applied through their websites and job portals while networking on LinkedIn. After a few weeks, I received interview invitations, starting with a screening call followed by technical interviews. Staying organized and practicing key concepts helped me prepare effectively.
Why selected/rejected for the role?
I was selected for the role due to my strong grasp of data structures and algorithms, as well as my effective communication during the interviews.
Preparation
Duration: 5 months
Topics: I focused my preparation on the following topics: Data Structures, Algorithms, OOP (Object-Oriented Programming), System Design, and Dynamic Programming.
Tip 1: Master the fundamentals.
Tip 2: Practice coding problems.
Tip 3: Participate in mock interviews.
Application process
Where: Linkedin
Eligibility: No, (Salary Package: 4LPA)
Tip 1: Use well-chosen words to improve your resume.
Tip 2: Only include things in your resume that you are confident about.
Interview rounds
01
Round
Easy
Online Coding Interview
Duration50 minutes
Interview date19 Jul 2023
Coding problem1
It was late night and the environment was very good.
1. Lowest Common Ancestor of a Binary Tree III
Moderate
25m average time
75% success
0/80
Asked in companies
The node structure of a binary tree is modified such that each node has the reference to its parent node.
You are given two nodes: ‘N1’ and ‘N2’, of the above binary tree. Your task is to return the lowest common ancestor (LCA) of the given nodes.
Note:
Let ‘TREE’ be a binary tree. The lowest common ancestor of two nodes, ‘N1’ and ‘N2’, is defined as the lowest node in ‘TREE’ with ‘N1’ and ‘N2’ as descendants (where we allow a node to be a descendant of itself).
Problem approach
To find the Lowest Common Ancestor (LCA) using binary lifting, first, represent the binary tree structure. Use Depth-First Search (DFS) to record each node's depth and parent, and create a binary lifting table where each entry `up[node][j]` holds the 2^j-th ancestor of that node.
When finding the LCA of two nodes, equalize their depths by lifting the deeper node up. Then, lift both nodes simultaneously until they converge at the same ancestor, which is the LCA. This method preprocesses in O(N) time and answers LCA queries in O(log N) time.
02
Round
Easy
Coding Test - Pen and paper
Duration20 minutes
Interview date7 Jul 2023
Coding problem1
Early morning and the environment was very tensed as so many peoples were there.
1. DBMS
How can you fetch data which in present in another table?
Problem approach
Tip 1: Read about DBMS.
Tip 2: Gain a strong command of it.
03
Round
Easy
HR Round
Duration10 minutes
Interview date19 Jul 2023
Coding problem1
Early in the morning.
1. HR question
Normal HR question: Why do you wanna join this company?
Problem approach
Tip 1: Give one or two mock interviews.
Here's your problem of the day 
Solving this problem will increase your chance to get selected in this company
Skill covered: Programming
What is the purpose of the return keyword?
Choose another skill to practice
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