DE Shaw vs Infosys Interview Questions
DE Shaw lists 105 LeetCode interview questions while Infosys lists 105. They share 15 problems — 14% of DE Shaw's bank and 14% of Infosys's. Focus on the overlap first, then drill into 90 DE Shaw-only and 90 Infosys-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 15 overlapping problems first. These are the highest-yield questions for candidates interviewing at both DE Shaw and Infosys.
Step 2 — Company-specific depth: Add DE Shaw-specific problems like Binary Tree Cameras, Find Minimum Cost to Remove Array Elements, Maximum Number of Subsequences After One Inserting and Infosys-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: DE Shaw skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
15 Shared Questions
High-priority problems to practice for both DE Shaw and Infosys.
| Problem | Difficulty |
|---|---|
| Trapping Rain Water | Hard |
| House Robber | Medium |
| Valid Parentheses | Easy |
| Koko Eating Bananas | Medium |
| Longest Consecutive Sequence | Medium |
| Median of Two Sorted Arrays | Hard |
| Number of Islands | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Best Time to Buy and Sell Stock II | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Container With Most Water | Medium |
| Merge Sorted Array | Easy |
| Two Sum | Easy |
| 4Sum | Medium |
| Next Permutation | Medium |
Unique to DE Shaw (90)
Problems in DE Shaw's list that do not appear at Infosys.
Unique to Infosys (90)
Problems in Infosys's list that do not appear at DE Shaw.
Frequently Asked Questions
How many LeetCode questions do DE Shaw and Infosys share?
DE Shaw and Infosys share 15 LeetCode interview questions. 90 problems appear only in DE Shaw's list and 90 appear only in Infosys's list.
What topics overlap most between DE Shaw and Infosys?
The most common shared topics between DE Shaw and Infosys are Array (13 shared questions), Two Pointers (5 shared questions), Dynamic Programming (4 shared questions), Hash Table (3 shared questions), Stack (2 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: DE Shaw or Infosys?
DE Shaw has 11 Easy, 64 Medium, and 30 Hard questions. Infosys has 32 Easy, 57 Medium, and 16 Hard questions. DE Shaw has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both DE Shaw and Infosys?
Start with the 15 shared problems since they cover what both companies ask most often. Then add 20 DE Shaw-specific and 20 Infosys-specific questions to round out your prep.