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D. E. Shaw interview questions (all time) · FAANGrind

D. E. Shaw

FinanceGlobal All time

The D. E. Shaw group is a global investment and technology firm known for quantitative, computationally driven trading strategies.

Est. 1988 1,001-5,000 employees

Problems: 123
Window: All time
Topics: 6

123 problems

TopicsLinks

1

1.Maximum Points After Collecting Coins From All Nodes

Hard1 co.

Hard

also at 0 more

2

2.Predict the Winner

Medium7 co.

Medium

Dynamic Programming

also at 6 more

3

3.Reorganize String

Medium14 co.

Medium

also at 13 more

4

4.Open the Lock

Medium8 co.

Medium

also at 7 more

5

Medium52 co.

Medium

Hashing Linked List

also at 51 more

6

6.Find the Sum of the Power of All Subsequences

Hard1 co.

Hard

Dynamic Programming

also at 0 more

7

7.Correct BST with two nodes swapped

Medium7 co.

Medium

Binary Search Trees

also at 6 more

8

8.Longest String Chain

Medium6 co.

Medium

Dynamic Programming

also at 5 more

9

9.Word Search II

Hard13 co.

Hard

also at 12 more

10

10.K-th Symbol in Grammar

Medium2 co.

Medium

Bit Manipulation

also at 1 more

11

11.House robber

Medium33 co.

Medium

Dynamic Programming

also at 32 more

12

12.Implement Rand10() Using Rand7()

Medium3 co.

Medium

also at 2 more

13

13.Max Number of K-Sum Pairs

Medium2 co.

Medium

also at 1 more

14

14.Find Triangular Sum of an Array

Medium1 co.

Medium

also at 0 more

15

15.Meeting Rooms II

Medium26 co.

Medium

Greedy Algorithms

also at 25 more

16

16.K-th Smallest in Lexicographical Order

Hard2 co.

Hard

also at 1 more

17

17.Using a Robot to Print the Lexicographically Smallest String

Medium4 co.

Medium

also at 3 more

18

18.Median of 2 sorted arrays

Hard34 co.

Hard

also at 33 more

19

19.Query Kth Smallest Trimmed Number

Medium2 co.

Medium

also at 1 more

20

20.Majority Element-I

Medium28 co.

Medium

also at 27 more

21

21.Put Marbles in Bags

Hard3 co.

Hard

also at 2 more

22

Medium14 co.

Medium

Greedy Algorithms

also at 13 more

23

23.House Robber II

Medium11 co.

Medium

Dynamic Programming

also at 10 more

24

24.Remove Max Number of Edges to Keep Graph Fully Traversable

Hard2 co.

Hard

also at 1 more

25

25.Relative Sort Array

Easy1 co.

Easy

also at 0 more

26

26.Best time to buy and sell stock

Medium45 co.

Medium

Dynamic Programming

also at 44 more

27

27.Count Vowel Substrings of a String

Easy5 co.

Easy

also at 4 more

28

28.Median of a Row Wise Sorted Matrix

Medium1 co.

Medium

also at 0 more

29

29.Minimum Runes to Add to Cast Spell

Hard1 co.

Hard

also at 0 more

30

30.Find Maximum Removals From Source String

Medium1 co.

Medium

Dynamic Programming

also at 0 more

31

31.Maximum Subsequence Score

Medium1 co.

Medium

also at 0 more

32

32.K Nearest Integers

Medium20 co.

Medium

also at 19 more

33

33.Minimum Number of Visited Cells in a Grid

Hard1 co.

Hard

also at 0 more

34

34.Shortest Path in a Grid with Obstacles Elimination

Hard7 co.

Hard

also at 6 more

35

35.Take Gifts From the Richest Pile

Easy1 co.

Easy

also at 0 more

36

36.Maximum Number of Subsequences After One Inserting

Medium1 co.

Medium

Dynamic Programming

also at 0 more

37

37.Wildcard matching

Medium19 co.

Medium

Dynamic Programming

also at 18 more

38

38.Find the Shortest Superstring

Hard1 co.

Hard

also at 0 more

39

39.Number of Ways to Wear Different Hats to Each Other

Hard2 co.

Hard

also at 1 more

40

40.Sum of Subarray Ranges

Medium10 co.

Medium

also at 9 more

41

41.Remove Duplicate Letters

Medium8 co.

Medium

also at 7 more

42

Medium24 co.

Medium

also at 23 more

43

43.Flatten Nested List Iterator

Medium4 co.

Medium

General & N-ary Trees

also at 3 more

44

44.Number of Substrings Containing All Three Characters

Medium17 co.

Medium

also at 16 more

45

45.Minimum Number of Pushes to Type Word II

Medium3 co.

Medium

Greedy Algorithms

also at 2 more

46

46.Greatest Sum Divisible by Three

Medium1 co.

Medium

Dynamic Programming

also at 0 more

47

47.Text Justification

Hard12 co.

Hard

also at 11 more

48

48.Design a Leaderboard

Medium9 co.

Medium

Hashing Ordered Sets & Maps

also at 8 more

49

49.Longest Valid Parentheses

Hard16 co.

Hard

Dynamic Programming

also at 15 more

50

50.Palindrome partitioning

Medium17 co.

Medium

Recursion & Backtracking

also at 16 more

Showing 1–50 of 123

Difficulty split

Easy9(7%)
Medium84(68%)
Hard30(24%)

Top topics

Dynamic Programming24
Binary Search14
Graphs13
Greedy Algorithms11
Arrays10
Stack & Queues10