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 4 problems of 25
- #16mediumfrequently asked
16. Number of Islands
Count the number of connected '1' regions in a 2D grid of '1' (land) and '0' (water). Intuit asks this as the canonical DFS/BFS-on-grid problem and reframes it as 'count distinct expense clusters' for financial-graph candidates.
- #17mediumfrequently asked
17. LRU Cache
Design an LRU (least-recently-used) cache with O(1) get and put. Intuit asks this to test data-structure composition (hash + doubly-linked list) and reframes it as 'cache the last N tax-form lookups' for TurboTax candidates.
- #18mediumfrequently asked
18. Course Schedule
Given a list of courses with prerequisites, determine whether you can complete all courses (i.e., the dependency graph has no cycle). Intuit asks this to test cycle detection and reframes it as 'detect circular dependencies in a tax-form rule tree.'
- #22mediumfrequently asked
22. Coin Change
Given coin denominations and a target amount, find the fewest coins needed to make the amount. Intuit asks this constantly — it maps directly to giving change in QuickBooks POS and to optimal-payment-plan calculations in TurboTax.
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