Luxoft coding interview
questions, leaked.
2 problems reported across recent Luxoft interviews. Top patterns: linked list, recursion, array. The list below is what most reported candidates actually saw, plus the honest play if you can't grind all of it.
Luxoft's coding interview is small but sharp. You're facing two problems, both easy difficulty, but don't mistake that for a free pass. Two Sum and Reverse Linked List test fundamentals that candidates routinely botch under pressure. Hash tables, arrays, linked lists, recursion: these are the building blocks. The good news is you know exactly what's coming. The bad news is execution matters. If you freeze on either problem during the live assessment, StealthCoder runs invisible during screen share and surfaces a working solution in seconds, keeping you moving.
Top problems at Luxoft
| # | Problem | Diff | Frequency | Pass % | Patterns |
|---|---|---|---|---|---|
| 01 | Two Sum | EASY | 100.0 | 56% | Array · Hash Table |
| 02 | Reverse Linked List | EASY | 89.2 | 79% | Linked List · Recursion |
Frequencies derived from public community-tagged interview reports. Click a row to view on LeetCode.
You have a week, maybe less. You can't out-grind the list above. StealthCoder runs invisibly during the actual Luxoft OA. The proctor cannot see it. Screen share cannot detect it. Built by an engineer who got tired of watching his cohort grind for six months and still get filtered at the OA stage.
Get StealthCoder- linked list1 · 50%
- recursion1 · 50%
- array1 · 50%
- hash table1 · 50%
The dataset is tiny, which means precision is everything. Both problems are classified easy, but the topic spread tells you Luxoft cares about foundational data structures and algorithmic thinking. Hash-table logic (Two Sum) and pointer manipulation (Reverse Linked List) dominate. Recursion appears once but is tied directly to the linked-list pattern. Arrays show up in Two Sum but as a vehicle for the hash-table core concept. The implication: Luxoft isn't testing breadth. It's testing whether you understand how to apply simple structures correctly. Drill both problems until you can code them without thinking. That's your prep. StealthCoder is your hedge if a curveball appears or nerves steal your rhythm on the live OA.
Companies with similar patterns
If you prepped for Luxoft, these companies recycle ~60% of the same topics.
You've seen the list.
Now make sure you pass Luxoft.
Memorizing every problem above in a week is a fantasy. StealthCoder is the hedge: an AI overlay that's invisible during screen share. It reads the problem on screen and surfaces a working solution in under 2 seconds. Built by an engineer who got tired of watching his cohort grind for six months and still get filtered at the OA stage. Works on HackerRank, CodeSignal, CoderPad, and Karat.
Luxoft interview FAQ
Should I memorize both problems or focus on one first?+
Focus on Two Sum first. Hash-table logic is faster to internalize and appears in more real-world code. Reverse Linked List tests pointer reasoning, which is trickier but comes second. Both are easy difficulty, so treat them as your baseline. You must own them cold.
Is recursion a big deal in Luxoft interviews?+
Recursion appears once, tied to the linked-list problem. Master iterative reversal first, then solve it recursively to understand the difference. Luxoft isn't testing deep recursion trees, just whether you can reason about base cases and state. One recursive solution is enough.
How long should I spend drilling before the interview?+
With only two problems in the dataset, spend 3 to 5 days owning them completely. Code each ten times minimum until muscle memory kicks in. Then run through them once daily for the week before your assessment. The small problem count means zero excuses for mistakes.
What if the actual interview includes a harder problem not in this list?+
The dataset shows only easy difficulty, so expect that baseline. If a medium-difficulty variant appears, you're likely dealing with a Two Sum or Reverse Linked List extension. Fall back on the core patterns you've drilled. StealthCoder surfaces a solution in real time if you blank.
Do I need to know advanced hash-table optimizations?+
No. Two Sum is solved with a single-pass hash table lookup. O(n) time, O(n) space. That's all Luxoft is testing. Avoid over-engineering. Clean, readable code beats clever tricks every time at this difficulty level.