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Intel interview questions

42 questions26 coding3 system design13 behavioral7 freeUpdated

This is every question in the Intel guide, in one list: 26 coding problems, 3 system designs and 13 behavioral questions, drawn from what candidates report about Intel interviews.

Each row shows the round it comes from and links to the lesson that works through it. 7 are free to read in full. The other 35 are Premium, and here you still see their round, difficulty and topic, so you know what you're walking into.

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Intel coding interview questions

26 problems, in the order the guide teaches them. Each lesson gives the full problem, a worked solution and the follow-ups interviewers tend to add.

1Reverse a Linked List: In-Place Pointer RelinkingFreeCodingEasyC Pointers & Memory
2Detect a Cycle in a Linked List: Floyd's Two PointersFreeCodingEasyC Pointers & Memory
3Palindrome Linked List: Find the Middle, Reverse the HalfFreeCodingEasyC Pointers & Memory
4Reverse a String In Place: Two Pointers, No LibraryFreeCodingEasyStrings in C
5Substring Search: Find the Needle by Walking PointersFreeCodingEasyStrings in C
6String to Integer (atoi): Clamp Before the MultiplyFreeCodingMediumStrings in C
7Premium easy problemCodingEasyData Structures in C
8Premium easy problemCodingEasyData Structures in C
9Premium medium problemCodingMediumData Structures in C
10Premium medium problemCodingMediumArrays, Binary Search & DP
11Premium easy problemCodingEasyArrays, Binary Search & DP
12Premium medium problemCodingMediumArrays, Binary Search & DP
13Premium easy problemCodingEasyBit Manipulation
14Premium easy problemCodingEasyBit Manipulation
15Premium easy problemCodingEasyBit Manipulation
16Premium easy problemCodingEasyBit Manipulation
17Premium easy problemCodingEasyEmbedded C & Registers
18Premium easy problemCodingEasyEmbedded C & Registers
19Premium easy problemCodingEasyEmbedded C & Registers
20Premium medium problemCodingMediumEmbedded C & Registers
21Premium medium problemCodingMediumEmbedded C & Registers
22Premium medium problemCodingMediumOS & Concurrency
23Premium medium problemCodingMediumOS & Concurrency
24Premium medium problemCodingMediumOS & Concurrency
25Premium medium problemCodingMediumOS & Concurrency
26Premium medium problemSystem designMediumContainer, LRU & OO Design

Intel system design interview questions

3 designs, each worked end to end in its own lesson, from requirements to the architecture and its trade-offs.

#Question
1Design a Memory AllocatorFree
2Thread-Safe & Lock-Free Structures (Premium)
3Container, LRU & OO Design (Premium)

A lock means the design is named here and its walkthrough is Premium.

Intel behavioral interview questions

13 questions, grouped by what the interviewer is testing. The lesson explains why each one gets asked and what a strong answer covers.

Prioritization & pressure (3)

All 3 are Premium

Disagreement & constructive confrontation (2)

All 2 are Premium

Ownership & initiative (2)

All 2 are Premium

Adaptability to change (2)

All 2 are Premium

Work-life balance (2)

All 2 are Premium

Why Intel (2)

All 2 are Premium

Read the Intel behavioral questions

See all 42 Intel questions by name

Premium opens the 35 locked questions on this page, each with the full prompt and a worked answer, and every other lesson in all 100 company guides.

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Common questions

How many questions are in the Intel interview guide?

42: 26 coding problems, 3 system designs and 13 behavioral questions. The guide was last updated in November 2026.

Which rounds do these Intel interview questions come from?

Of the 26 coding problems, 25 come from the coding rounds and 1 from the system design lessons. The 3 system designs and 13 behavioral questions come from the system design and behavioral rounds. Every row in the list carries its round, so you can start with the one you have booked.

Which Intel interview questions are free?

7 of the 42 are free to read in full, marked Free in the list. The other 35 come with Premium, which also opens all 100 company guides.