IBM vs Visa Interview Questions
IBM lists 115 LeetCode interview questions while Visa lists 146. They share 32 problems — 28% of IBM's bank and 22% of Visa's. Focus on the overlap first, then drill into 83 IBM-only and 114 Visa-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 32 overlapping problems first. These are the highest-yield questions for candidates interviewing at both IBM and Visa.
Step 2 — Company-specific depth: Add IBM-specific problems like Find the Smallest Divisor Given a Threshold, Gray Code, Integer to Roman and Visa-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Visa skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
32 Shared Questions
High-priority problems to practice for both IBM and Visa.
| Problem | Difficulty |
|---|---|
| 3Sum | Medium |
| Exclusive Time of Functions | Medium |
| Best Time to Buy and Sell Stock | Easy |
| Two Sum | Easy |
| Meeting Rooms II | Medium |
| Rotate Image | Medium |
| Number of Divisible Triplet Sums | Medium |
| Merge Intervals | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Longest Common Prefix | Easy |
| Valid Parentheses | Easy |
| Letter Combinations of a Phone Number | Medium |
| Minimum Suffix Flips | Medium |
| Longest Consecutive Sequence | Medium |
| Longest Palindromic Substring | Medium |
| Merge Sorted Array | Easy |
| Maximum Subarray | Medium |
| Spiral Matrix | Medium |
| Group Anagrams | Medium |
| Divide Players Into Teams of Equal Skill | Medium |
| Trapping Rain Water | Hard |
| Product of Array Except Self | Medium |
| Longest Increasing Subsequence | Medium |
| Subarray Sum Equals K | Medium |
| Rotate Array | Medium |
| Median of Two Sorted Arrays | Hard |
| Odd String Difference | Easy |
| Gas Station | Medium |
| Happy Number | Easy |
| Word Break | Medium |
Showing top 30 of 32 shared problems.
Unique to IBM (83)
Problems in IBM's list that do not appear at Visa.
Unique to Visa (114)
Problems in Visa's list that do not appear at IBM.
Frequently Asked Questions
How many LeetCode questions do IBM and Visa share?
IBM and Visa share 32 LeetCode interview questions. 83 problems appear only in IBM's list and 114 appear only in Visa's list.
What topics overlap most between IBM and Visa?
The most common shared topics between IBM and Visa are Array (23 shared questions), Hash Table (11 shared questions), String (9 shared questions), Two Pointers (8 shared questions), Sorting (6 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: IBM or Visa?
IBM has 33 Easy, 73 Medium, and 9 Hard questions. Visa has 32 Easy, 92 Medium, and 22 Hard questions. Visa has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both IBM and Visa?
Start with the 32 shared problems since they cover what both companies ask most often. Then add 20 IBM-specific and 20 Visa-specific questions to round out your prep.