Preparing for DE Shaw placements? You’re in the right place! This guide covers everything you need to know about DE Shaw’s recruitment process, test pattern, syllabus, and recently asked questions. Practicing these will give you an edge in clearing the placement rounds.
The DE Shaw recruitment process typically consists of multiple rounds designed to evaluate a candidate’s aptitude, technical proficiency, and problem-solving skills. The key rounds include:
The DE Shaw online test is designed to assess a candidate’s quantitative ability, logical reasoning, verbal ability, and technical skills.
Percentages, Profit & Loss, Permutations & Combinations, Probability, Speed-Time-Distance, Boats & Streams, Time & Work, Data Interpretation, Mixtures & Allegations
Syllogisms, Blood Relations, Coding-Decoding, Seating Arrangements, Puzzles, Series Completion
Reading Comprehension, Sentence Correction, Synonyms & Antonyms, Fill in the Blanks
Data Structures, DBMS, OOPS, Networking, Dynamic Programming, Tree Traversals
Based on analysis of previous DE Shaw placement papers, key topics include:
The coding section includes MCQs and programming challenges related to:
Problem Statement:
You are given an array containing N
distinct numbers from 1
to N+1
. One number is missing. Find the missing number efficiently.
Input:arr = [1, 2, 4, 5, 6]
Output:3
Since the numbers are in the range 1
to N+1
, we can use the formula for the sum of the first N+1
natural numbers: Sum=(N+1)×(N+2)/2
Subtract the sum of the given array from this value to get the missing number.
Problem Statement:
A boy eats chocolates every day. He eats the sweetest chocolate first, followed by chocolates with the same sweetness but lower bitterness. If two chocolates have the same sweetness and bitterness, he eats them in lexicographical order of names.
You are given three arrays:
sweetness[]
– Chocolate sweetness levels.bitterness[]
– Chocolate bitterness levels.names[]
– Chocolate names.You need to return the name of the chocolate eaten each day.
Input:
sweetness[] = {2, 3, 7, 3, 2, 2}
bitterness[] = {5, 4, 1, 4, 9, 3}
names[] = {"a", "b", "c", "d", "e", "f"}
days[] = {1, 3, 5}
Output:
c
d
b
If both sweetness and bitterness are the same, sort lexicographically.
Use a max-heap (priority queue) to sort chocolates based on sweetness (descending).
If two chocolates have the same sweetness, sort based on bitterness (ascending).
Problem Statement:
Given a string, determine the minimum number of cuts required to break it into palindromic substrings.
Input:str = "abccbc"
Output:1
Explanation:
The string "abccbc"
can be broken into "abcc|bc"
(both are palindromes), so only one cut is needed.
dp[i]
stores the minimum cuts required for substring s[0:i]
).Problem Statement:
You are given an array where each value represents a pile of coins. You can add or remove coins to make all piles equal at a given cost per operation.
Find the minimum cost to equalize all piles.
Input:
piles = {3, 1, 5, 10}
addCost = 1
removeCost = 1
Output:
9
mid
).mid
, keeping track of total cost.Success in DE Shaw placements depends on thorough preparation, strategic problem-solving, and consistent practice. Utilize this guide to strengthen your skills and boost your confidence.