Citadel vs Paytm Interview Questions
Citadel lists 101 LeetCode interview questions while Paytm lists 29. They share 4 problems — 4% of Citadel's bank and 14% of Paytm's. Focus on the overlap first, then drill into 97 Citadel-only and 25 Paytm-only questions.
Overview
Preparation Strategy
Step 1 — Shared core: Solve the 4 overlapping problems first. These are the highest-yield questions for candidates interviewing at both Citadel and Paytm.
Step 2 — Company-specific depth: Add Citadel-specific problems like Longest Non-decreasing Subarray From Two Arrays, Binary Tree Maximum Path Sum, Minimum Knight Moves and Paytm-specific problems from the exclusive lists below.
Step 3 — Difficulty tuning: Citadel skews harder in our data. Budget extra time for Hard problems if you are targeting that company.
Difficulty Comparison
Top Shared Topics
4 Shared Questions
High-priority problems to practice for both Citadel and Paytm.
| Problem | Difficulty |
|---|---|
| Best Time to Buy and Sell Stock | Easy |
| Find the Duplicate Number | Medium |
| Trapping Rain Water | Hard |
| Container With Most Water | Medium |
Unique to Citadel (97)
Problems in Citadel's list that do not appear at Paytm.
Unique to Paytm (25)
Problems in Paytm's list that do not appear at Citadel.
Frequently Asked Questions
How many LeetCode questions do Citadel and Paytm share?
Citadel and Paytm share 4 LeetCode interview questions. 97 problems appear only in Citadel's list and 25 appear only in Paytm's list.
What topics overlap most between Citadel and Paytm?
The most common shared topics between Citadel and Paytm are Array (4 shared questions), Two Pointers (3 shared questions), Dynamic Programming (2 shared questions), Binary Search (1 shared questions), Bit Manipulation (1 shared questions). Mastering these areas prepares you for both companies.
Which company asks harder LeetCode questions: Citadel or Paytm?
Citadel has 5 Easy, 60 Medium, and 36 Hard questions. Paytm has 7 Easy, 19 Medium, and 3 Hard questions. Citadel has a higher proportion of Hard problems in its interview set.
How should I prepare if interviewing at both Citadel and Paytm?
Start with the 4 shared problems since they cover what both companies ask most often. Then add 20 Citadel-specific and 20 Paytm-specific questions to round out your prep.