Problem database last updated: June 20, 2025
4 problems · 0 Easy, 3 Medium, 1 Hard · Ranked #289 of 458
0 Easy
0% · avg 23%
3 Medium
75% · avg 59%
1 Hard
25% · avg 18%
Based on 4 reported problems, Stripe interviews are slightly harder than average - 25% Hard vs 18% across all companies. The majority (75%) of questions are Medium difficulty, which is typical for companies that want to see solid fundamentals without excessive trick questions.
Compared to the industry average, Stripe puts unusual emphasis on shortest-path (50% of problems, 100.3x the industry average), graph (75% of problems, 25.3x the industry average), breadth-first-search (50% of problems, 6x the industry average). If you're short on time, these are the categories to double down on.
The most common topics are graph (75%), string (50%), array (50%), depth-first-search (50%). Problems below are sorted by frequency, the ones at the top are asked most often.
| Problem | Difficulty | Frequency | Topics | |
|---|---|---|---|---|
Minimum Penalty for a Shop You are given the customer visit log of a shop represented by a 0-indexed string customers consisting only of characters 'N' and 'Y': | Medium | Very Likely | stringprefix-sum | Solve |
Evaluate Division You are given an array of variable pairs equations and an array of real numbers values, where equations[i] = [Ai, Bi] and values[i] represent the equation Ai /... | Medium | Likely | arraystringdepth-first-search | Solve |
Cheapest Flights Within K Stops There are n cities connected by some number of flights. You are given an array flights where flights[i] = [fromi, toi, pricei] indicates that there is a flight... | Medium | Likely | dynamic-programmingdepth-first-searchbreadth-first-search | Solve |
Parallel Courses III You are given an integer n, which indicates that there are n courses labeled from 1 to n. You are also given a 2D integer array relations where relations[j] = [... | Hard | Sometimes | arraydynamic-programminggraph | Solve |
Minimum Penalty for a Shop
SolveYou are given the customer visit log of a shop represented by a 0-indexed string customers consisting only of characters 'N' and 'Y':
Evaluate Division
SolveYou are given an array of variable pairs equations and an array of real numbers values, where equations[i] = [Ai, Bi] and values[i] represent the equation Ai /...
Cheapest Flights Within K Stops
SolveThere are n cities connected by some number of flights. You are given an array flights where flights[i] = [fromi, toi, pricei] indicates that there is a flight...
Parallel Courses III
SolveYou are given an integer n, which indicates that there are n courses labeled from 1 to n. You are also given a 2D integer array relations where relations[j] = [...
Frequency scores are based on crowdsourced interview reports. A higher score means the problem has been reported more often in recent Stripe interviews.
Very Likely
75-100%
Likely
50-74%
Sometimes
25-49%
Rare
0-24%
Stripe interviews focus heavily on graph, string, array 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. Stripe 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.
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Stripe has been reported to ask 4 distinct coding problems. The most common topics are graph, string, array. 0 are Easy difficulty, 3 are Medium, and 1 are Hard. Problems are sorted by frequency - the ones at the top are asked most often.
Based on 4 reported problems, Stripe interviews are slightly harder than average - 25% Hard vs 18% across all companies. 75% of questions are Medium difficulty. Focus on the high-frequency Medium problems first, then work through the Hard ones.
Start with the highest-frequency problems listed on this page. Focus on the core topics: graph, string, array. 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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