IBM vs Paytm Interview Questions
IBM lists 115 LeetCode interview questions while Paytm lists 29. They share 10 problems — 9% of IBM's bank and 34% of Paytm's. Focus on the overlap first, then drill into 105 IBM-only and 19 Paytm-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 10 overlapping problems first. These are the highest-yield questions for candidates interviewing at both IBM and Paytm.
Step 2 — Company-specific depth: Add IBM-specific problems like Find the Smallest Divisor Given a Threshold, Gray Code, 3Sum and Paytm-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Paytm skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
10 Shared Questions
High-priority problems to practice for both IBM and Paytm.
| Problem | Difficulty |
|---|---|
| Best Time to Buy and Sell Stock | Easy |
| Two Sum | Easy |
| Longest Substring Without Repeating Characters | Medium |
| String Compression | Medium |
| Valid Parentheses | Easy |
| Longest Consecutive Sequence | Medium |
| Longest Palindromic Substring | Medium |
| Number of Divisible Substrings | Medium |
| Trapping Rain Water | Hard |
| Find the Duplicate Number | Medium |
Unique to IBM (105)
Problems in IBM's list that do not appear at Paytm.
| 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 |
| Meeting Rooms II | Medium |
| Rotate Image | Medium |
| Minimum Absolute Difference | Easy |
Unique to Paytm (19)
Problems in Paytm's list that do not appear at IBM.
Frequently Asked Questions
How many LeetCode questions do IBM and Paytm share?
IBM and Paytm share 10 LeetCode interview questions. 105 problems appear only in IBM's list and 19 appear only in Paytm's list.
What topics overlap most between IBM and Paytm?
The most common shared topics between IBM and Paytm are Array (5 shared questions), String (5 shared questions), Hash Table (4 shared questions), Two Pointers (4 shared questions), Dynamic Programming (3 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: IBM or Paytm?
IBM has 33 Easy, 73 Medium, and 9 Hard questions. Paytm has 7 Easy, 19 Medium, and 3 Hard questions. Paytm has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both IBM and Paytm?
Start with the 10 shared problems since they cover what both companies ask most often. Then add 20 IBM-specific and 19 Paytm-specific questions to round out your prep.