300+ DE Shaw Interview Questions & Answers | Complete Prep Guide 2025

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Software Developer Interview Questions & Answers

Anonymous

posted on 9 May 2015

Interview Questionnaire

12 Questions

Q1. Find maximum length BST in a given binary tree?

Ans.

To find the maximum length BST in a given binary tree.

Traverse the tree in post-order fashion
For each node, check if it satisfies the BST property
If it does, calculate the size of the BST rooted at that node
Keep track of the maximum size seen so far

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Q2. Write an algorithm to find the absolute max subsequence of an array containing both positive and negative numbers in O(n) time ?

Ans.

Algorithm to find absolute max subsequence of an array with positive and negative numbers in O(n) time.

Initialize max_so_far and max_ending_here as 0
Loop through the array and for each element, add it to max_ending_here
If max_ending_here becomes negative, reset it to 0
If max_ending_here is greater than max_so_far, update max_so_far
Return max_so_far

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Q3. Given an array eliminate the duplicates and print it. Linear time complexity?

Ans.

Eliminate duplicates in an array of strings and print it in linear time complexity.

Use a hash set to keep track of unique elements
Iterate through the array and add non-duplicate elements to the hash set
Print the hash set elements to get the final array

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Q4. Balancing of Btrees / AVL trees?

Ans.

Balancing of Btrees / AVL trees is important for efficient search and insertion operations.

Btrees and AVL trees are self-balancing binary search trees.
Balancing ensures that the height of the tree is minimized, leading to faster search and insertion operations.
Btrees are used in databases while AVL trees are used in memory.
Balancing is achieved by performing rotations and node splitting.
AVL trees have a stricter balanc...

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Q5. Two cops and a robber are located on opposite corners of a cube and move along its edges. They all move at the same rate. Is it possible for the cops to catch the robber. [Each of the 3 people can see each other at all times and can react instantaneously to each others movements. Stopping is allowed.]

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Q6. In some tournament 139 teams have participated. Tournament is knock out. what is the number of matches to choose the champion to be held?

Ans.

139 teams in a knock-out tournament, find the number of matches to choose the champion.

In a knock-out tournament, each team plays only one match per round.
The number of matches required to choose the champion is one less than the number of teams.
Therefore, the number of matches required is 138.

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Q7. OS concepts – Threading, Deadlocks, Paging etc

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Q8. Databases Questions – Transactions, ACID etc

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Q9. Project details in your resume?

Ans.

My resume includes projects such as a web-based inventory management system and a mobile app for tracking fitness goals.

Developed a web-based inventory management system using PHP and MySQL
Created a mobile app for tracking fitness goals using React Native
Implemented RESTful APIs for communication between front-end and back-end
Utilized version control tools such as Git for collaborative development
Designed and implement...

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Q10. Given a 7mt long gold bar , need to cut and give to worker for 7 days (1 meter long) How many min cuts?

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Q11. Write algo to mirror a given Binary Tree?

Ans.

Algorithm to mirror a given Binary Tree

Create a function to swap left and right child nodes of a given node
Recursively call the function on left and right child nodes
Base case: if node is null, return
Call the function on the root node of the binary tree

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Q12. Find the next largest int of a given int such that it has same number of 1′s in binary?

Ans.

Find the next largest int with same number of 1's in binary.

Count the number of 1's in the binary representation of the given int.
Increment the given int until a number with the same number of 1's is found.
Return the next largest int with same number of 1's.

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Interview Preparation Tips

Skills: C,C++ , JAVA , Finding output, Basic Concepts
College Name: NA

Skills evaluated in this interview

Software Developer Interview Questions asked at other Companies

Q1. Maximum Subarray Sum Problem Statement Given an array of integers, determine the maximum possible sum of any contiguous subarray within the array. Example: Input: array = [34, -50, 42, 14, -5, 86] Output: 137 Explanation: The maximum sum is... read more

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Senior Specialist Interview Questions & Answers

Anonymous

posted on 12 Jan 2025

Interview experience

Excellent

Difficulty level

Process Duration

Result

Round 1 - One-on-one

(6 Questions)

Q1. Tell me about youtself?

Ans.

I am a dedicated and experienced professional with a strong background in project management and team leadership.

Over 10 years of experience in project management
Proven track record of successfully leading cross-functional teams
Strong communication and interpersonal skills
Certified in project management (PMP)
Previously managed a project with a budget of $1 million

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Q2. What do you know about TDS?

Ans.

TDS stands for Tax Deducted at Source, a system where tax is deducted by the payer at the time of making payment.

TDS is a system introduced by the Income Tax Department of India to collect tax at the source from where an individual's income is generated.
It is applicable to various payments such as salary, interest, commission, rent, etc.
The deducted TDS amount is then deposited to the government by the deductor.
TDS rat...

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Q3. Situation AP based journal entries

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Q4. What is GST on reverse charge?

Ans.

GST on reverse charge is a mechanism where the recipient of the goods/services is liable to pay the tax instead of the supplier.

Under reverse charge mechanism, the recipient of the goods/services is responsible for paying the GST instead of the supplier.
It is applicable in certain cases like import of services, specified goods/services, etc.
The recipient needs to self-assess and pay the tax directly to the government.
I...

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Q5. What are the documents required to initiate a foreign remittance?

Ans.

Documents required for foreign remittance include identification proof, proof of address, and purpose of remittance.

Identification proof such as passport or driver's license
Proof of address like utility bill or bank statement
Purpose of remittance document like invoice or agreement

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Q6. More situational based AP journal entries.

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Senior Specialist Interview Questions asked at other Companies

Q1. Design the zabbix architecture and share how many servers are you gonna suggest the customer to have?

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DE Shaw Interview Questions and Answers for Freshers

Executive Assistant Interview Questions & Answers

Anonymous

posted on 22 Feb 2025

Interview experience

Bad

Difficulty level

Moderate

Process Duration

More than 8 weeks

Result

Not Selected

I was interviewed in Aug 2024.

Round 1 - One-on-one

(2 Questions)

Q1. Behavioural Questions

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Q2. Scenario Based Questions

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Round 2 - One-on-one

(2 Questions)

Q1. Scenario Based Questions

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Q2. Guestimates

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Round 3 - One-on-one