D E Shaw Interview Preparation interview questions
Online test → Technical → Technical
DSA
Showing 20 of 251 reported in this area
Given an m x n grid, divide it into 4 parts by drawing one vertical and one horizontal line such that the total sum of absolute sums of all 4 parts is minimized.
Best Time to Buy and Sell Stock with Cooldown
Find the median of a stream of running integers.
Best Time to Buy and Sell Stock with Transaction Fee
Find the Longest Common Subsequence (LCS) of three strings.
Given an array of n integers, you can divide the array into sections containing k elements each (n is divisible by k). The score of each section is the product of the elements in that section. Find the maximum possible sum of scores of all sections.
Best Time to Buy and Sell Stock IV
Best Time to Buy and Sell Stock III
Best Time to Buy and Sell Stock
Best Time to Buy and Sell Stock II
Policeman catches thieves
Policeman catches thieves problem
Implement a Weighted Prefix Search
Answer range XOR queries using a Fenwick Tree
Solve the N-Queens Problem using backtracking
Convert a Binary Search Tree (BST) to a Min-Heap.
309. Best Time to Buy and Sell Stock with Cooldown
Given a string, find the k-th permutation where k ≤ 1e9.
714. Best Time to Buy and Sell Stock with Transaction Fee
Policeman catch thieves problem using a greedy algorithm.
CS fundamentals
Showing 28 of 212 reported in this area
Explain page replacement algorithms in operating systems.
Which data structure is used to implement an LRU Cache?
Compare B-Tree and B+ Tree.
Implement a Python list in C.
What are smart pointers in C++?
Bug finding in given code snippets
Time complexity analysis questions
Explain unique_ptr and shared_ptr in C++.
Object-Oriented Programming (OOP) concepts
Explain decorators and generators in Python.
Explain how a C program is stored in memory.
Explain how Garbage Collection works in Java.
Explain virtual functions and vtable mechanism.
What is the use of the volatile keyword in Java?
What is extern and what is name mangling in C/C++?
Explain the internal implementation of Python lists.
How do you approach integration testing in a system?
Explain deadlock avoidance and prevention techniques.
Explain multithreading concepts in operating systems.
Explain the virtual keyword, vptr, and vtable in C++.
Explain how HashMap is implemented internally in Java.
Conceptual questions on Operating Systems fundamentals.
Explain memory management concepts in operating systems.
Explain the internal implementation of Python dictionary.
Explain database normal forms and functional dependencies.
How do you handle dynamic frames in UI automation testing?
What are virtual base classes and friend functions in C++?
What happens if we execute: int arr[2]; while(true) arr++;
Puzzles
Showing 3 of 16 reported in this area
There are two traffic lights between your house and office. While going from house to office you stop twice, but while returning you stop only once. Traffic lights are always red when encountered. How is this possible?
Round Table Coin Game puzzle.
Puzzle: The Magnetic Rod problem.
System design
Showing 3 of 8 reported in this area
Explain what an LRU cache is and design a system to implement an LRU cache efficiently.
How would you optimize search operations on a large structured file stored in secondary memory?
Given a file containing log entries from different applications, design a system or algorithm to classify logs of similar type together.
Behavioural
Showing 3 of 7 reported in this area
Have you worked in a team before?
asked 3×Practice this →
If you have a contradiction with your colleague, how will you resolve it?
asked 2×Practice this →
What all things should be tested on a checkout page of an e-commerce website?
Aptitude
Showing 3 of 5 reported in this area
Quantitative aptitude questions based on probability, profit and loss
Solve aptitude questions based on profits and loss, percentage calculations, bar graph interpretation, and English paragraph comprehension.
Solve logical aptitude questions based on probability, permutations, and general logical reasoning.
Showing 60 of 428 questions. Ranked by how often the same question came back across reports.
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What questions does D E Shaw Interview Preparation ask?
Candidate interview reports most often cover DSA (50%) and CS fundamentals (42%).
How many rounds does D E Shaw Interview Preparation interview have?
Candidate interview reports show an average of 3.0 rounds per experience, with a typical sequence of Online test → Technical → Technical. Individual interview paths can vary.
Is the D E Shaw Interview Preparation interview hard?
Among questions with a reported difficulty, the mix is easy 26%, medium 55%, hard 19%.