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DoorDash DSA Interview QuestionsDoorDash leans on graphs, heaps and interval problems that mirror routing and dispatch, plus a design round on real-time logistics. Medium-to-hard difficulty throughout.
78 real interview questions actually asked at DoorDash — filter by how recently they were reported.
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DoorDash leans on graphs, heaps and interval problems that mirror routing and dispatch, plus a design round on real-time logistics. Medium-to-hard difficulty throughout.
Across the 78 questions on this page, the weight sits on these patterns:
This sheet collects 78 DoorDash interview questions, grouped into 23 patterns. They are questions reported as actually asked in DoorDash interviews, and each one carries how recently it was reported so you can practise the current set first.
Breadth-First Search, Dynamic Programming, Binary Search come first — the patterns on this page are ordered by how often DoorDash leans on them, so working top-down spends your time where the interview actually is. The full order is Breadth-First Search, Dynamic Programming, Binary Search, Sorting, Trie, Hash Table.
At roughly 25 minutes per problem — reading it, solving it and writing the approach down — 78 problems is about 33 hours, or 3 weeks at ten hours a week. Most people do not need all of it: the first two or three patterns cover the majority of what gets asked.
Yes. Every problem, the pattern grouping and the progress tracking are free and need no account. Progress saves in your browser, and signing in with Google only adds syncing across devices.
Yes — tick a problem on this page and it stays ticked. The counts per pattern update as you go, so you can see which of DoorDash's topics you have actually covered rather than guessing.