IBM vs Zoho Interview Questions
IBM lists 115 LeetCode interview questions while Zoho lists 168. They share 39 problems — 34% of IBM's bank and 23% of Zoho's. Focus on the overlap first, then drill into 76 IBM-only and 129 Zoho-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 39 overlapping problems first. These are the highest-yield questions for candidates interviewing at both IBM and Zoho.
Step 2 — Company-specific depth: Add IBM-specific problems like Find the Smallest Divisor Given a Threshold, Gray Code, Exclusive Time of Functions and Zoho-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Zoho skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
39 Shared Questions
High-priority problems to practice for both IBM and Zoho.
| Problem | Difficulty |
|---|---|
| 3Sum | Medium |
| Integer to Roman | Medium |
| Roman to Integer | Easy |
| Best Time to Buy and Sell Stock | Easy |
| Two Sum | Easy |
| Rotate Image | Medium |
| Merge Intervals | Medium |
| Longest Substring Without Repeating Characters | Medium |
| String Compression | Medium |
| Longest Common Prefix | Easy |
| Valid Parentheses | Easy |
| Merge Strings Alternately | Easy |
| Letter Combinations of a Phone Number | Medium |
| Longest Consecutive Sequence | Medium |
| Longest Palindromic Substring | Medium |
| Merge Sorted Array | Easy |
| Maximum Subarray | Medium |
| Spiral Matrix | Medium |
| Group Anagrams | Medium |
| Climbing Stairs | Easy |
| Trapping Rain Water | Hard |
| Product of Array Except Self | Medium |
| Find the Index of the First Occurrence in a String | Easy |
| Subarray Sum Equals K | Medium |
| Intersection of Two Arrays | Easy |
| Rotate Array | Medium |
| Median of Two Sorted Arrays | Hard |
| Subsets | Medium |
| Palindrome Number | Easy |
| Gas Station | Medium |
Showing top 30 of 39 shared problems.
Unique to IBM (76)
Problems in IBM's list that do not appear at Zoho.
Unique to Zoho (129)
Problems in Zoho's list that do not appear at IBM.
| Problem | Difficulty |
|---|---|
| Decode String | Medium |
| Compare Version Numbers | Medium |
| Sort Even and Odd Indices Independently | Easy |
| Daily Temperatures | Medium |
| Number of Islands | Medium |
| Largest Number | Medium |
| Find Winner on a Tic Tac Toe Game | Easy |
| Zigzag Conversion | Medium |
| Wildcard Matching | Hard |
| Sqrt(x) | Easy |
| Remove All Occurrences of a Substring | Medium |
| Container With Most Water | Medium |
Frequently Asked Questions
How many LeetCode questions do IBM and Zoho share?
IBM and Zoho share 39 LeetCode interview questions. 76 problems appear only in IBM's list and 129 appear only in Zoho's list.
What topics overlap most between IBM and Zoho?
The most common shared topics between IBM and Zoho are Array (18 shared questions), String (11 shared questions), Two Pointers (9 shared questions), Hash Table (9 shared questions), Math (6 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: IBM or Zoho?
IBM has 33 Easy, 73 Medium, and 9 Hard questions. Zoho has 54 Easy, 94 Medium, and 20 Hard questions. Zoho has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both IBM and Zoho?
Start with the 39 shared problems since they cover what both companies ask most often. Then add 20 IBM-specific and 20 Zoho-specific questions to round out your prep.