D.E.Shaw interview experience Real time questions & tips from candidates to crack your interview
SDE - Intern
D.E.Shaw
1 rounds | 2 Coding
problems
Rejected
Interview preparation journey
Preparation
Duration: 6 Months
Topics: Data structures, Algorithms, Object-oriented programming, Database management system, Python, Django, React, web technologies, Problem-solving, Aptitude
Tip 1 : Strengthen DSA skills initially, know the basics and understand the working of different data structures
Tip 2 : Solve atleast 300 Questions from websites like leetcode and Hackerrank
Tip 3 : Learn to implement them and enhance your coding skills. Make mistakes and learn from them instead of just cramming everything before practicing.
Tip 4 : To enhance coding skills, try your best to crack a question instead of giving up and looking at the solution..this will improve your problem-solving skills.
Tip 5 : It's a must to do the standard coding questions under every category of data structure and algorithms
Tip 6 : To study the topics and practice coding questions refer to GeeksforGeeks and regularly take part in coding contests.
Tip 7 : Be thorough with OOPs, DBMS, and the technologies on which you have worked for the interview.
Tip 8 : Have at least 2 projects in your resume and make sure you can answer the questions related to them.
Tip 9 : For HR interviews prepare questions, prepare questions such as introduce yourself, your strengths, your weakness.
Confidence is the key you need to be an expert in. I was not aware of some things the interviewer asked during my interviews. But due to my confidence, he skipped that part.
Tip 10 : Do all the questions from the book 'cracking the coding interview'
Application process
Where: Campus
Eligibility: Above 7 CGPA
Tip 1 : Make sure your resume fits everything into a single page.
Tip 2 : Have at least 2 projects on your resume.
Tip 3 : Only Mention only those technical skills that you are confident in. Do not put false things on your resume.
Tip 4 : Mention the work you have done during your internships.
Tip 5 : Include an objective in your resume.
Interview rounds
01
Round
Easy
Online Coding Interview
Duration95 Minutes
Interview date8 Aug 2020
Coding problem2
The complete test was Audio and Video Proctored.
The test was divided into 3 sections:
1) Aptitude: (14 MCQs in 28 minutes)
2) Technical: (12 MCQs in 17 minutes)
3) coding: (2 questions - first in 20 minutes, second in 30 minutes)
1. Water
Easy
15m average time
85% success
0/40
Asked in companies
You are given an array 'ARR' of positive integers, each of which represents the number of liters of water in that particular bucket, we have to make the liters of water in every bucket equal.
We are allowed to do two types of operations any number of times:
1. We can altogether remove a bucket from the sequence
2. We can draw some water from a bucket
We have to tell the minimum number of liters removed to make all buckets have the same amount of water.
For example:
Given ‘N’ = 4 and ‘ARR’ = [1, 1, 2, 2].
The answer will be 2, i.e., if we chose that all buckets should have 1 unit of water, we will have to throw 1 unit of water from buckets 3 and 4. Hence 2.
2. Time To Burn Tree
Hard
50m average time
50% success
0/120
Asked in companies
You have a binary tree of 'N' unique nodes and a Start node from where the tree will start to burn. Given that the Start node will always exist in the tree, your task is to print the time (in minutes) that it will take to burn the whole tree.
It is given that it takes 1 minute for the fire to travel from the burning node to its adjacent node and burn down the adjacent node.
For Example :
For the given binary tree: [1, 2, 3, -1, -1, 4, 5, -1, -1, -1, -1]
Start Node: 3
1
/ \
2 3
/ \
4 5
Output: 2
Explanation :
In the zeroth minute, Node 3 will start to burn.
After one minute, Nodes (1, 4, 5) that are adjacent to 3 will burn completely.
After two minutes, the only remaining Node 2 will be burnt and there will be no nodes remaining in the binary tree.
So, the whole tree will burn in 2 minutes.
Here's your problem of the day 
Solving this problem will increase your chance to get selected in this company
Skill covered: Programming
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