DotPe SDE Interview Questions and Answers

Given 3 DSA medium level problems

One hour face to face round. Given system design problem of parking lot.

Q1. Description about project from resume
Ans. 
Developed a web application for online shopping
• Used HTML, CSS, and JavaScript for front-end development

• Implemented backend using Node.js and MongoDB

• Integrated payment gateway for secure transactions
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Q2. Lot of behavourial questions.
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Q1. Design a SQL Database
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Asked me to rewrite SQL in 20 minutes insanely tough and rude interviewer

Round duration - 90 minutes
Round difficulty - Medium

Q1. 
Reverse Linked List Problem Statement
Given a singly linked list of integers, return the head of the reversed linked list.
Example:
Initial linked list: 1 -> 2 -> 3 -> 4 -> NULL
Reversed link...read more
Ans. 
Reverse a singly linked list of integers and return the head of the reversed linked list.
• Iterate through the linked list and reverse the pointers to point to the previous node instead of the next node.

• Use three pointers - prev, current, and next - to keep track of the nodes while reversing the linked list.

• Update the head of the reversed linked list as the last node encountered during reversal.
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Round duration - 60 minutes
Round difficulty - Medium

Round duration - 50 minutes
Round difficulty - Easy

1 easy question based on string and core subjects amd project related questions

2 questions 90 mins, dynamic programming and graph based

Q1. Dont remember dont remember
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Q2. I dont remember dont remember
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Q1. Last projects worked on
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Q2. What are you good at
Ans. 
I am good at problem-solving, coding, and collaborating with team members.
• Strong problem-solving skills

• Proficient in coding languages like Java, Python, and C++

• Effective communication and collaboration with team members
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It consist of 3 questions on hackerrank

Q1. Dont remember the exact it was related to array manipulation
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Q2. Dont remember the exact but it was string manipulation
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