IBM vs PhonePe Interview Questions
IBM lists 115 LeetCode interview questions while PhonePe lists 93. They share 12 problems — 10% of IBM's bank and 13% of PhonePe's. Focus on the overlap first, then drill into 103 IBM-only and 81 PhonePe-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 PhonePe.
Step 2 — Company-specific depth: Add IBM-specific problems like Find the Smallest Divisor Given a Threshold, Gray Code, 3Sum and PhonePe-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: PhonePe 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 PhonePe.
| Problem | Difficulty |
|---|---|
| Best Time to Buy and Sell Stock | Easy |
| Merge Intervals | Medium |
| String Compression | Medium |
| Longest Common Prefix | Easy |
| Make Lexicographically Smallest Array by Swapping Elements | Medium |
| Longest Consecutive Sequence | Medium |
| Longest Palindromic Substring | Medium |
| Group Anagrams | Medium |
| Trapping Rain Water | Hard |
| Gas Station | Medium |
| Generate Parentheses | Medium |
| LRU Cache | Medium |
Unique to IBM (103)
Problems in IBM's list that do not appear at PhonePe.
| 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 |
| Count Ways to Group Overlapping Ranges | Medium |
| Two Sum | Easy |
| Meeting Rooms II | Medium |
| Rotate Image | Medium |
Unique to PhonePe (81)
Problems in PhonePe's list that do not appear at IBM.
Frequently Asked Questions
How many LeetCode questions do IBM and PhonePe share?
IBM and PhonePe share 12 LeetCode interview questions. 103 problems appear only in IBM's list and 81 appear only in PhonePe's list.
What topics overlap most between IBM and PhonePe?
The most common shared topics between IBM and PhonePe are Array (7 shared questions), String (5 shared questions), Dynamic Programming (4 shared questions), Sorting (3 shared questions), Two Pointers (3 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: IBM or PhonePe?
IBM has 33 Easy, 73 Medium, and 9 Hard questions. PhonePe has 2 Easy, 58 Medium, and 33 Hard questions. PhonePe has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both IBM and PhonePe?
Start with the 12 shared problems since they cover what both companies ask most often. Then add 20 IBM-specific and 20 PhonePe-specific questions to round out your prep.