IBMLeetCode Questions
VerifiedCommunity-reported coding interview questions for IBM, organized by frequency across 30-day, 3-month, and 6-month recency windows.
# | Problem | Difficulty | Frequency↓ | Acceptance | |
|---|---|---|---|---|---|
| #412 | Fizz Buzz3 sources | Easy | 100% | 75.7% | |
| #56 | Merge Intervals3 sources | Medium | 95% | 52.3% | |
| #12 | Integer to Roman3 sources | Medium | 93% | 71.2% | |
| #3 | Medium | 88% | 39.4% | ||
| #121 | Best Time to Buy and Sell Stock3 sources | Easy | 88% | 57.0% | |
| #1 | Two Sum3 sources | Easy | 88% | 57.8% | |
| #2580 | Medium | 88% | 39.3% | ||
| #13 | Roman to Integer3 sources | Easy | 85% | 66.8% | |
| #20 | Valid Parentheses3 sources | Easy | 83% | 44.5% | |
| #2602 | Medium | 80% | 38.6% | ||
| #48 | Rotate Image3 sources | Medium | 79% | 80.4% | |
| #453 | Medium | 76% | 58.9% | ||
| #5 | Longest Palindromic Substring3 sources | Medium | 75% | 38.2% | |
| #560 | Subarray Sum Equals K3 sources | Medium | 75% | 47.7% | |
| #3159 | Medium | 75% | 73.6% | ||
| #3175 | Medium | 75% | 40.4% | ||
| #3107 | Medium | 75% | 48.1% | ||
| #1355 | Medium | 75% | 72.1% | ||
| #3402 | Easy | 71% | 72.8% | ||
| #845 | Longest Mountain in Array3 sources | Medium | 71% | 42.3% | |
| #2559 | Count Vowel Strings in Ranges3 sources | Medium | 70% | 67.9% | |
| #49 | Group Anagrams3 sources | Medium | 69% | 72.9% | |
| #2545 | Sort the Students by Their Kth Score3 sources | Medium | 69% | 86.0% | |
| #242 | Valid Anagram3 sources | Easy | 69% | 68.3% | |
| #2907 | Medium | 66% | 56.1% | ||
| #2921 | Hard | 66% | 46.2% | ||
| #2964 | Number of Divisible Triplet Sums3 sources | Medium | 66% | 67.6% | |
| #3024 | Type of Triangle3 sources | Easy | 66% | 44.0% | |
| #1200 | Minimum Absolute Difference3 sources | Easy | 66% | 75.2% | |
| #3096 | Minimum Levels to Gain More Points3 sources | Medium | 66% | 40.5% | |
| #3147 | Medium | 66% | 61.0% | ||
| #3145 | Hard | 66% | 25.1% | ||
| #2455 | Easy | 66% | 63.5% | ||
| #2562 | Find the Array Concatenation Value3 sources | Easy | 66% | 72.1% | |
| #3223 | Medium | 66% | 75.1% | ||
| #754 | Reach a Number3 sources | Medium | 66% | 45.3% | |
| #3820 | Medium | 66% | 0.6% | ||
| #9 | Palindrome Number3 sources | Easy | 63% | 60.7% | |
| #14 | Longest Common Prefix3 sources | Easy | 63% | 47.9% | |
| #11 | Container With Most Water3 sources | Medium | 63% | 60.4% | |
| #1710 | Maximum Units on a Truck3 sources | Easy | 63% | 75.0% | |
| #1888 | Medium | 63% | 53.6% | ||
| #15 | 3Sum3 sources | Medium | 63% | 39.4% | |
| #724 | Find Pivot Index3 sources | Easy | 63% | 63.2% | |
| #1004 | Max Consecutive Ones III3 sources | Medium | 63% | 68.0% | |
| #1518 | Water Bottles3 sources | Easy | 63% | 72.6% | |
| #17 | Medium | 63% | 66.4% | ||
| #696 | Count Binary Substrings3 sources | Easy | 63% | 70.5% | |
| #1319 | Medium | 63% | 66.9% | ||
| #2734 | Medium | 63% | 35.2% |
IBM Technical Interview Overview & Company-Wise Questions
This page organizes 196 community-reported IBM LeetCode problems by difficulty, frequency, and recency so you can build a focused preparation queue. Reports are aggregated from public datasets and should be treated as preparation signals rather than predictions.
How to prioritize IBM preparation
Start with the 7 questions reported in the last 30 days, then work through the highest-frequency topics (Array, String, Sorting, Hash Table). This page tracks 196 community-reported questions across 61 Easy, 114 Medium, and 21 Hard problems. Data refreshed Oct 28, 2026.
Frequently Asked Questions
What are the most frequent LeetCode questions for IBM?
The leading problems in the available IBM interview reports include Fizz Buzz, Merge Intervals, Integer to Roman. This page tracks 196 reported problems across Easy (61), Medium (114), and Hard (21) difficulty levels.
Where can I practice company-wise LeetCode questions for IBM?
You can review all 196 IBM questions on this page, filter them by 30-day, 3-month, 6-month, and all-time windows, and save practice progress for free.
How does LeetMap Pro organize IBM interview problem recency?
LeetMap Pro groups community-reported occurrences into 30-day, 3-month, 6-month, and older windows. These are preparation signals from the available sources, not guarantees that a problem will appear in a future interview.
What is the difficulty distribution for IBM coding questions?
Medium is the largest tracked difficulty group for IBM, with 114 problems. The full distribution is 61 Easy, 114 Medium, and 21 Hard.