Intel vs Twitter Interview Questions
Intel lists 25 LeetCode interview questions while Twitter lists 53. They share 3 problems — 12% of Intel's bank and 6% of Twitter's. Focus on the overlap first, then drill into 22 Intel-only and 50 Twitter-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 3 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Intel and Twitter.
Step 2 — Company-specific depth: Add Intel-specific problems like Find Consecutive Integers from a Data Stream, Maximum Nesting Depth of the Parentheses, Number of Islands and Twitter-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Twitter skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
3 Shared Questions
High-priority problems to practice for both Intel and Twitter.
| Problem | Difficulty |
|---|---|
| Trapping Rain Water | Hard |
| Valid Parentheses | Easy |
| LRU Cache | Medium |
Unique to Intel (22)
Problems in Intel's list that do not appear at Twitter.
| Problem | Difficulty |
|---|---|
| Find Consecutive Integers from a Data Stream | Medium |
| Maximum Nesting Depth of the Parentheses | Easy |
| Number of Islands | Medium |
| Copy List with Random Pointer | Medium |
| Two Sum | Easy |
| Count Primes | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Best Time to Buy and Sell Stock II | Medium |
| Reverse Integer | Medium |
| Maximum Subarray | Medium |
| Climbing Stairs | Easy |
| Merge Two Sorted Lists | Easy |
Unique to Twitter (50)
Problems in Twitter's list that do not appear at Intel.
| Problem | Difficulty |
|---|---|
| Regular Expression Matching | Hard |
| Integer to Roman | Medium |
| Merge k Sorted Lists | Hard |
| Multiply Strings | Medium |
| Wildcard Matching | Hard |
| Merge Intervals | Medium |
| Permutation Sequence | Hard |
| Pascal's Triangle | Easy |
| Word Break II | Hard |
| Time Needed to Buy Tickets | Easy |
| Max Points on a Line | Hard |
| One Edit Distance | Medium |
Frequently Asked Questions
How many LeetCode questions do Intel and Twitter share?
Intel and Twitter share 3 LeetCode interview questions. 22 problems appear only in Intel's list and 50 appear only in Twitter's list.
What topics overlap most between Intel and Twitter?
The most common shared topics between Intel and Twitter are Stack (2 shared questions), Array (1 shared questions), Two Pointers (1 shared questions), Dynamic Programming (1 shared questions), Monotonic Stack (1 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Intel or Twitter?
Intel has 10 Easy, 14 Medium, and 1 Hard questions. Twitter has 8 Easy, 33 Medium, and 12 Hard questions. Twitter has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Intel and Twitter?
Start with the 3 shared problems since they cover what both companies ask most often. Then add 20 Intel-specific and 20 Twitter-specific questions to round out your prep.