HashedIn by Deloitte SDE Intern Interview Questions and Answers

They had three coding questions for 1:30 hr and Two technical rounds and at last they had fitment round

Q1. Reverse the array
Ans. 
Reverse the array of strings
• Create a new array and iterate through the original array in reverse order, adding each element to the new array

• Alternatively, you can use the reverse() method on the array itself
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Q2. Detect a loop in the linked list
Ans. 
Use Floyd's Tortoise and Hare algorithm to detect a loop in a linked list.
• Initialize two pointers, slow and fast, at the head of the linked list.

• Move slow pointer by one step and fast pointer by two steps.

• If they meet at any point, there is a loop in the linked list.
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Q1. Questions where based on sysytem design
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Q2. Low level system design questions , design a tic tac toe game
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The coding test was of 2 hours, in which there were 3 questions. The topics which were asked were dynamic programming, strings and graphs. The platform on which it was conducted was codility.

Q1. 1. Describe your projects. 2. Group anagrams : Leetcode 3. Next greater element : Leetcode 4. Morris traversal 4. Questions from OS, DBMS and CN Total duration - 1 hr
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Q1. 1. Describe your projects in depth. 2. Database schema design of Codechef. 3. SQL queries related to that. 4. Questions on CN
Ans. 
Answering questions on projects, database schema design of Codechef, SQL queries, and CN.
• Projects involved developing a web application for managing employee data and a mobile app for tracking expenses.

• Database schema design of Codechef involved creating tables for users, problems, submissions, and contests.

• SQL queries related to Codechef included retrieving user details, problem submissions, and contest rankings.

• Quest...read more
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Q1. This was basically a fitment round by a product manager. 1. Introduction 2. Your background 3. Your project 4. Any plans for higher education 5. What do you know about Hashedin and why Hashedin? 6. Do you...read more
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