Intuit Coding Interview Questions
25 Intuit coding interview problems with full optimal solutions — 15 easy, 7 medium, 3 hard. Every problem ships with multiple approaches (brute-force first, then the optimal), complexity tables for each, company-specific tips on what an Intuit interviewer values, and a FAQ section.
Showing 3 problems of 25
- #23hardsometimes asked
23. Find Median from Data Stream
Design a data structure that supports adding integers and returning the running median in O(log n) add and O(1) median. Intuit asks this for senior coding rounds, framing it as 'running median of daily transaction amounts in QuickBooks.'
- #24hardsometimes asked
24. Sliding Window Maximum
Given an integer array and a window size k, return the maximum of each contiguous k-sized window. Intuit asks this for senior coding rounds and reframes it as 'running max-balance over a rolling N-day window in a ledger.'
- #25hardrarely asked
25. LFU Cache
Design an LFU (least-frequently-used) cache with O(1) get and put. Intuit asks this only at senior levels; it tests whether you can compose three data structures — hash for keys, hash for frequency buckets, doubly-linked lists per bucket — without breaking the O(1) contract.
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