ByteDance vs Infosys Interview Questions
ByteDance lists 64 LeetCode interview questions while Infosys lists 105. They share 21 problems — 33% of ByteDance's bank and 20% of Infosys's. Focus on the overlap first, then drill into 43 ByteDance-only and 84 Infosys-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 21 overlapping problems first. These are the highest-yield questions for candidates interviewing at both ByteDance and Infosys.
Step 2 — Company-specific depth: Add ByteDance-specific problems like LRU Cache, Remove Duplicate Letters, Smallest Subsequence of Distinct Characters and Infosys-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Infosys skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
21 Shared Questions
High-priority problems to practice for both ByteDance and Infosys.
| Problem | Difficulty |
|---|---|
| Number of Islands | Medium |
| Combination Sum | Medium |
| Merge Intervals | Medium |
| House Robber | Medium |
| Two Sum | Easy |
| Trapping Rain Water | Hard |
| Search in Rotated Sorted Array | Medium |
| Combination Sum II | Medium |
| Add Two Numbers | Medium |
| Maximum Subarray | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Single Element in a Sorted Array | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Kth Largest Element in an Array | Medium |
| Climbing Stairs | Easy |
| Subarray Sum Equals K | Medium |
| Subsets | Medium |
| Longest Palindromic Substring | Medium |
| Valid Parentheses | Easy |
| Jump Game | Medium |
| Linked List Cycle II | Medium |
Unique to ByteDance (43)
Problems in ByteDance's list that do not appear at Infosys.
| Problem | Difficulty |
|---|---|
| LRU Cache | Medium |
| Remove Duplicate Letters | Medium |
| Smallest Subsequence of Distinct Characters | Medium |
| First Day Where You Have Been in All the Rooms | Medium |
| Course Schedule | Medium |
| Basic Calculator II | Medium |
| Shortest Bridge | Medium |
| Maximal Square | Medium |
| Regular Expression Matching | Hard |
| Top K Frequent Elements | Medium |
| Design Memory Allocator | Medium |
| Word Ladder | Hard |
Unique to Infosys (84)
Problems in Infosys's list that do not appear at ByteDance.
Frequently Asked Questions
How many LeetCode questions do ByteDance and Infosys share?
ByteDance and Infosys share 21 LeetCode interview questions. 43 problems appear only in ByteDance's list and 84 appear only in Infosys's list.
What topics overlap most between ByteDance and Infosys?
The most common shared topics between ByteDance and Infosys are Array (15 shared questions), Dynamic Programming (7 shared questions), Hash Table (4 shared questions), Backtracking (3 shared questions), Two Pointers (3 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: ByteDance or Infosys?
ByteDance has 4 Easy, 51 Medium, and 9 Hard questions. Infosys has 32 Easy, 57 Medium, and 16 Hard questions. Infosys has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both ByteDance and Infosys?
Start with the 21 shared problems since they cover what both companies ask most often. Then add 20 ByteDance-specific and 20 Infosys-specific questions to round out your prep.