How often are these problems asked?
Frequency scores are based on crowdsourced interview reports. A higher score means the problem has been reported more often in recent Navan interviews.
Very Likely
75-100%
Likely
50-74%
Sometimes
25-49%
Rare
0-24%
Problem database last updated: June 20, 2025
N
Navan Coding Interview Questions
4 problems · 0 Easy, 2 Medium, 2 Hard · Ranked #287 of 459
Difficulty breakdown
0 Easy
0% · avg 23%
2 Medium
50% · avg 59%
2 Hard
50% · avg 18%
Top topics
hash-table
50%2.1x
array
50%
dynamic-programming
50%2.5x
linked-list
25%3.5x
design
25%4.2x
doubly-linked-list
25%13.2x
Interview profile
Based on 4 reported problems, Navan interviews are significantly harder than average - 50% Hard vs 18% across all companies.
Compared to the industry average, Navan puts unusual emphasis on dynamic-programming (50% of problems, 2.5x the industry average), hash-table (50% of problems, 2.1x the industry average). If you're short on time, these are the categories to double down on.
The most common topics are hash-table (50%), array (50%), dynamic-programming (50%), linked-list (25%). Problems below are sorted by frequency, the ones at the top are asked most often.
All 4 problems
| Problem | Difficulty | Frequency | Topics | |
|---|---|---|---|---|
LRU Cache Design a data structure that follows the constraints of a Least Recently Used (LRU) cache. | Medium | Very Likely | hash-tablelinked-listdesign | Solve |
Word Ladder A transformation sequence from word beginWord to word endWord using a dictionary wordList is a sequence of words beginWord -> s1 -> s2 -> ... -> sk such that: | Hard | Very Likely | hash-tablestringbreadth-first-search | Solve |
Paint House There is a row of n houses, where each house can be painted one of three colors: red, blue, or green. The cost of painting each house with a certain color is di... | Medium | Very Likely | arraydynamic-programming | Solve |
Trapping Rain Water Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water it can trap after raining. | Hard | Very Likely | arraytwo-pointersdynamic-programming | Solve |
LRU Cache
SolveDesign a data structure that follows the constraints of a Least Recently Used (LRU) cache.
MediumVery Likely
hash-tablelinked-listdesign
Word Ladder
SolveA transformation sequence from word beginWord to word endWord using a dictionary wordList is a sequence of words beginWord -> s1 -> s2 -> ... -> sk such that:
HardVery Likely
hash-tablestringbreadth-first-search
Paint House
SolveThere is a row of n houses, where each house can be painted one of three colors: red, blue, or green. The cost of painting each house with a certain color is di...
MediumVery Likely
arraydynamic-programming
Trapping Rain Water
SolveGiven n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water it can trap after raining.
HardVery Likely
arraytwo-pointersdynamic-programming
Preparing for your Navan coding interview
Navan interviews focus heavily on hash-table, array, dynamic-programming problems. If you're short on time, these are the categories to prioritize. The problems on this page are sorted by frequency, so start from the top and work your way down.
Beyond solving problems, practice explaining your approach. Navan interviewers care about your thought process - how you break down a problem, consider edge cases, and evaluate tradeoffs between solutions. A clean O(n) solution you can explain clearly beats an O(log n) solution you can't articulate.
Looking for more companies? Browse all 459 companies in our directory, or sharpen your fundamentals with our free data structure visualizers and AI-powered DSA tutor.
Frequently Asked Questions
What coding problems does Navan ask in interviews?add
Navan has been reported to ask 4 distinct coding problems. The most common topics are hash-table, array, dynamic-programming. 0 are Easy difficulty, 2 are Medium, and 2 are Hard. Problems are sorted by frequency - the ones at the top are asked most often.
How hard are Navan coding interviews?add
Based on 4 reported problems, Navan interviews are significantly harder than average - 50% Hard vs 18% across all companies. 50% of questions are Medium difficulty. Focus on the high-frequency Medium problems first, then work through the Hard ones.
How should I prepare for a Navan coding interview?add
Start with the highest-frequency problems listed on this page. Focus on the core topics: hash-table, array, dynamic-programming. Practice solving them under time pressure and explaining your approach out loud. Mock interviews with AI can simulate the real experience.
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