Bloomberg vs IBM Interview Questions
Bloomberg lists 1,200 LeetCode interview questions while IBM lists 115. They share 77 problems — 6% of Bloomberg's bank and 67% of IBM's. Focus on the overlap first, then drill into 1,123 Bloomberg-only and 38 IBM-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 77 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Bloomberg and IBM.
Step 2 — Company-specific depth: Add Bloomberg-specific problems like Add Two Numbers, Insert Delete GetRandom O(1), Number of Islands and IBM-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Bloomberg skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
77 Shared Questions
High-priority problems to practice for both Bloomberg and IBM.
| Problem | Difficulty |
|---|---|
| Two Sum | Easy |
| Merge Intervals | Medium |
| Longest Substring Without Repeating Characters | Medium |
| Valid Parentheses | Easy |
| Best Time to Buy and Sell Stock | Easy |
| Trapping Rain Water | Hard |
| Longest Palindromic Substring | Medium |
| 3Sum | Medium |
| Longest Common Prefix | Easy |
| Median of Two Sorted Arrays | Hard |
| Majority Element | Easy |
| Reverse Integer | Medium |
| Merge Sorted Array | Easy |
| Remove Duplicates from Sorted Array | Easy |
| Palindrome Number | Easy |
| LRU Cache | Medium |
| Roman to Integer | Easy |
| Subarray Sum Equals K | Medium |
| Longest Consecutive Sequence | Medium |
| Maximum Subarray | Medium |
| Group Anagrams | Medium |
| Subsets | Medium |
| Next Permutation | Medium |
| Rotate Image | Medium |
| Generate Parentheses | Medium |
| Climbing Stairs | Easy |
| Rotate Array | Medium |
| Meeting Rooms II | Medium |
| Validate Binary Search Tree | Medium |
| Word Break | Medium |
Showing top 30 of 77 shared problems.
Unique to Bloomberg (1,123)
Problems in Bloomberg's list that do not appear at IBM.
| Problem | Difficulty |
|---|---|
| Add Two Numbers | Medium |
| Insert Delete GetRandom O(1) | Medium |
| Number of Islands | Medium |
| Invalid Transactions | Medium |
| Flatten a Multilevel Doubly Linked List | Medium |
| Word Search | Medium |
| Container With Most Water | Medium |
| Decode String | Medium |
| Valid Anagram | Easy |
| Merge Two Sorted Lists | Easy |
| Design Underground System | Medium |
| Search in Rotated Sorted Array | Medium |
Unique to IBM (38)
Problems in IBM's list that do not appear at Bloomberg.
Frequently Asked Questions
How many LeetCode questions do Bloomberg and IBM share?
Bloomberg and IBM share 77 LeetCode interview questions. 1123 problems appear only in Bloomberg's list and 38 appear only in IBM's list.
What topics overlap most between Bloomberg and IBM?
The most common shared topics between Bloomberg and IBM are Array (20 shared questions), Hash Table (9 shared questions), String (8 shared questions), Two Pointers (8 shared questions), Dynamic Programming (7 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Bloomberg or IBM?
Bloomberg has 395 Easy, 645 Medium, and 160 Hard questions. IBM has 33 Easy, 73 Medium, and 9 Hard questions. Bloomberg has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Bloomberg and IBM?
Start with the 77 shared problems since they cover what both companies ask most often. Then add 20 Bloomberg-specific and 20 IBM-specific questions to round out your prep.