Intel LeetCode Interview Questions
Intel has asked 25 distinct LeetCode questions across all recorded interviews: 10 easy, 14 medium and 1 hard. The questions reported most often are Maximum Nesting Depth of the Parentheses, Find Consecutive Integers from a Data Stream and Trapping Rain Water. 3 of them were reported in interviews from the Last 6 Months window. Every question links straight to LeetCode, and the list can be filtered by difficulty and topic or sorted by how often the question comes up.
| # | Problem | Difficulty | Frequency | Acceptance | |
|---|---|---|---|---|---|
| 1 | Maximum Nesting Depth of the Parentheses | Easy | 100 | 84.3% | |
| 2 | Find Consecutive Integers from a Data Stream | Medium | 100 | 49.4% | |
| 3 | Trapping Rain Water | Hard | 100 | 65.1% | |
| 4 | Valid Parentheses | Easy | 94 | 42.3% | |
| 5 | Number of Islands | Medium | 94 | 62.3% | |
| 6 | Copy List with Random Pointer | Medium | 87 | 60.5% | |
| 7 | Two Sum | Easy | 83 | 55.8% | |
| 8 | Longest Substring Without Repeating Characters | Medium | 77 | 36.9% | |
| 9 | Count Primes | Medium | 77 | 34.8% | |
| 10 | Best Time to Buy and Sell Stock II | Medium | 70 | 69.5% | |
| 11 | Reverse Integer | Medium | 70 | 30.3% | |
| 12 | LRU Cache | Medium | 70 | 45.2% | |
| 13 | Best Time to Buy and Sell Stock | Easy | 60 | 55.3% | |
| 14 | Add Two Numbers | Medium | 60 | 46.2% | |
| 15 | Climbing Stairs | Easy | 60 | 53.5% | |
| 16 | Merge Two Sorted Lists | Easy | 60 | 66.8% | |
| 17 | Reverse Words in a String | Medium | 60 | 51.9% | |
| 18 | Palindrome Number | Easy | 60 | 59.2% | |
| 19 | Container With Most Water | Medium | 60 | 57.8% | |
| 20 | Merge Sorted Array | Easy | 60 | 52.9% | |
| 21 | Rotate Image | Medium | 60 | 77.9% | |
| 22 | Linked List Cycle | Easy | 60 | 52.6% | |
| 23 | Valid Palindrome | Easy | 60 | 51.0% | |
| 24 | Maximum Subarray | Medium | 60 | 52.1% | |
| 25 | Top K Frequent Words | Medium | 60 | 59.3% |
Where this data comes from
These questions come from the public leetcode-company-wise-problems data set, which collects interview reports from candidates. They are community-reported rather than published by Intel, so treat the list as a strong signal of what gets asked, not an official or exhaustive syllabus. Last refreshed .
How to read this list
The tabs at the top split the questions by how recently people said they were asked in interviews. "Last 30 Days" is the past month, "Last 3 Months" is the past quarter, and so on. "All Time" is every question on record for this company.
Frequency is a score from 0 to 100 for how often a question showed up in that time window. A higher number means it came up more often, so the list starts with the most common questions first. It is a relative popularity signal within Intel's questions, not a probability that you will be asked it. Acceptance is LeetCode's own share of submissions that pass for that problem, across all users, not something specific to Intel. Click any question to open it on LeetCode.