IBM vs Wells Fargo Interview Questions
IBM lists 115 LeetCode interview questions while Wells Fargo lists 24. They share 12 problems — 10% of IBM's bank and 50% of Wells Fargo's. Focus on the overlap first, then drill into 103 IBM-only and 12 Wells Fargo-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 12 overlapping problems first. These are the highest-yield questions for candidates interviewing at both IBM and Wells Fargo.
Step 2 — Company-specific depth: Add IBM-specific problems like Find the Smallest Divisor Given a Threshold, Gray Code, 3Sum and Wells Fargo-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Wells Fargo skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
12 Shared Questions
High-priority problems to practice for both IBM and Wells Fargo.
| Problem | Difficulty |
|---|---|
| Meeting Rooms II | Medium |
| Merge Intervals | Medium |
| Longest Common Prefix | Easy |
| Valid Parentheses | Easy |
| Count Binary Substrings | Easy |
| Merge Strings Alternately | Easy |
| Maximum Subarray | Medium |
| Shortest and Lexicographically Smallest Beautiful String | Medium |
| Spiral Matrix | Medium |
| Product of Array Except Self | Medium |
| Backspace String Compare | Easy |
| LRU Cache | Medium |
Unique to IBM (103)
Problems in IBM's list that do not appear at Wells Fargo.
| Problem | Difficulty |
|---|---|
| Find the Smallest Divisor Given a Threshold | Medium |
| Gray Code | Medium |
| 3Sum | Medium |
| Exclusive Time of Functions | Medium |
| Integer to Roman | Medium |
| Minimum Operations to Make Columns Strictly Increasing | Easy |
| Fizz Buzz | Easy |
| Roman to Integer | Easy |
| Best Time to Buy and Sell Stock | Easy |
| Count Ways to Group Overlapping Ranges | Medium |
| Two Sum | Easy |
| Rotate Image | Medium |
Unique to Wells Fargo (12)
Problems in Wells Fargo's list that do not appear at IBM.
Frequently Asked Questions
How many LeetCode questions do IBM and Wells Fargo share?
IBM and Wells Fargo share 12 LeetCode interview questions. 103 problems appear only in IBM's list and 12 appear only in Wells Fargo's list.
What topics overlap most between IBM and Wells Fargo?
The most common shared topics between IBM and Wells Fargo are String (6 shared questions), Array (5 shared questions), Two Pointers (4 shared questions), Sorting (2 shared questions), Prefix Sum (2 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: IBM or Wells Fargo?
IBM has 33 Easy, 73 Medium, and 9 Hard questions. Wells Fargo has 10 Easy, 12 Medium, and 2 Hard questions. Wells Fargo has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both IBM and Wells Fargo?
Start with the 12 shared problems since they cover what both companies ask most often. Then add 20 IBM-specific and 12 Wells Fargo-specific questions to round out your prep.