D E Shaw Interview Experience | Set 17 (On-Campus)

Round 1
Online test on HackerRank contains 3 sections

Section 1: 2 Coding Questions (20 & 40 Marks) in 50 minutes

Section 2: 10 Computer Aptitude (Easy) (C, C++, OS, DBMS, CN, DSA) (20 Marks, +2, -0.5) in 20 minutes



Section 3: 10 Aptitude Questions (Hard) (20 Marks, +2, -0.5) in 20 minutes

Coding Questions –

1. Given an array of numbers, find the number of triplets of h[i] > h[j] > h[k] such that i < j < k.

2. Given an array of numbers, find the maximum and minimum sum of sub sequences at a distance > m

Example –

arr = {3, 4, -2, 1, -2, 4, 6, -3, 5} & m = 2

Solution – max = 13 {4 + 4 + 5}, min = -5 {-2-3}


Round 2

Face to Face HR Round (25 minutes)


1. Tell me about yourself.

2. The biggest achievement of your life?

3. How do your friends think of you?

4. Rank – money, power, love & fame according to your preference and explain why?

5. If your best friend is in your team and he is not working seriously on the project assigned to your team then what would you do?

6. What if that project is failed now, who will you hold responsible?

Face to Face Technical Round (20 minutes)

1. Explain Trie Data structure used in your project with the code?

2. Why you have use map as nodes in trie data structure?

3. You have given a BST, find the elements in the tree under a given range?

4. You have given a 100 MB memory and a 150 MB file of strings, how will you sort the strings.

5. You have given a table containing employee id, employee name, manager id, manager name. Write a SQL Query to print all employees of all the managers. (Transitive relation possible)

Out of 15, only 2 are selected in the next round.

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