Clari coding interview
questions, leaked.
3 problems reported across recent Clari interviews. Top patterns: tree, binary tree, math. The list below is what most reported candidates actually saw, plus the honest play if you can't grind all of it.
Clari's coding interview is tight. Three problems, all medium difficulty, and they're betting you'll choke on tree construction or tree enumeration under pressure. You're looking at binary tree problems that require you to think in both directions at once, plus a math-DP hybrid that catches people off guard. If you've drilled trees before, you're ahead. If not, you're walking in cold. StealthCoder sits invisibly on your screen during the assessment and surfaces a working solution the moment you hit a wall, no proctor visibility.
Top problems at Clari
| # | Problem | Diff | Frequency | Pass % | Patterns |
|---|---|---|---|---|---|
| 01 | Create Binary Tree From Descriptions | MEDIUM | 100.0 | 82% | Array · Hash Table · Tree |
| 02 | Group Employees of the Same Salary | MEDIUM | 100.0 | 66% | Database |
| 03 | Unique Binary Search Trees | MEDIUM | 81.1 | 62% | Math · Dynamic Programming · Tree |
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 Clari OA. The proctor cannot see it. Screen share cannot detect it. Built by an engineer at a top-10 tech company who can solve these problems cold but didn't want to trust himself in a 90-minute screen share.
Get StealthCoder- tree2 · 67%
- binary tree2 · 67%
- math1 · 33%
- dynamic programming1 · 33%
- binary search tree1 · 33%
- array1 · 33%
- hash table1 · 33%
- database1 · 33%
The signal is clear: Clari leans hard on tree structures. Two of the three problems live in tree space, and both demand you build or enumerate trees from constraints. Binary tree and BST concepts appear across multiple problems, so if you're shaky on parent-child relationships, serialization tricks, or traversal patterns, that's your weak point. The third problem layers math and dynamic programming on top of tree theory, which means you can't just memorize a tree template. You need to understand why each node matters. The salary grouping problem surfaces database thinking, but it's the outlier. Start with tree construction and BST enumeration. StealthCoder is your hedge if you blank on a tree traversal or DP recurrence mid-interview.
Companies with similar patterns
If you prepped for Clari, these companies recycle ~60% of the same topics.
You've seen the list.
Now make sure you pass Clari.
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 at a top-10 tech company who can solve these problems cold but didn't want to trust himself in a 90-minute screen share. Works on HackerRank, CodeSignal, CoderPad, and Karat.
Clari interview FAQ
Should I spend more time on trees or the database problem?+
Trees are two-thirds of the interview. Clari's test has two tree problems and one database problem. Master binary tree construction, BST property checks, and enumeration patterns first. The database problem appears once and is lower complexity in isolation. Spend 70 percent of prep time on trees.
What tree skills matter most for Clari?+
Clari tests your ability to build trees from descriptions and count valid trees under constraints. You need to handle parent-child relationships, rebuild trees from incomplete data, and think recursively about tree generation. Standard inorder/preorder traversal is table stakes; understanding why the tree structure itself is the problem is what separates passing from failing.
Is dynamic programming a blocker here?+
It appears in one problem (Unique Binary Search Trees) alongside math and tree topics. If you've never done tree enumeration with DP, this problem will feel abstract. But it's one of three. Spend time understanding how DP counts tree shapes, then move back to the construction problems. DP here is about recognizing the pattern, not inventing it.
How much time should I spend on hash tables and arrays?+
Both appear in the top problem (Create Binary Tree From Descriptions) but as support tools, not the main challenge. You use hash tables to store node references and arrays to iterate constraints. They're not the bottleneck. Focus on tree logic first, then optimize lookup using hash structures.
Can I pass Clari without studying databases?+
Yes. One problem involves database grouping logic, but it's medium difficulty and doesn't require SQL knowledge. Understand how to group and aggregate data in code (hash maps, loops). The real interview weight is on trees. Database problem is the safety valve if you finish early or need a confidence boost.