Coding interview questions

Atlassian Coding Interview Questions (DSA)

The 48 DSA problems Atlassian has asked most in the last six months, most-asked first. 48 of them have a full breakdown with diagrams and code. Tick them off as you go.

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48problems
48full breakdowns
44topics

By difficulty: Easy (5) · Medium (33) · Hard (10)

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Topics

1335.Minimum Difficulty of a Job Schedule
Full breakdownArrayDynamic Programming
121.Best Time to Buy and Sell Stock
Full breakdownArrayDynamic Programming
Easy+10▶ Mock
1366.Rank Teams by Votes
Full breakdownArrayHash TableString
Medium▶ Mock
1138.Alphabet Board Path
Full breakdownHash TableString
Medium▶ Mock
3953.Maximum Score with Co-Prime Element
Full breakdownArrayHash TableMath
56.Merge Intervals
Full breakdownArraySortingQuicksort
Medium+14▶ Mock
49.Group Anagrams
Full breakdownArrayHash TableString
Medium+9▶ Mock
68.Text Justification
Full breakdownArrayStringSimulation
1048.Longest String Chain
Full breakdownArrayHash TableTwo Pointers
Medium▶ Mock
2034.Stock Price Fluctuation
Full breakdownHash TableDesignHeap (Priority Queue)
Medium▶ Mock
300.Longest Increasing Subsequence
Full breakdownArrayBinary SearchDynamic Programming
Medium▶ Mock
353.Design Snake Game
Full breakdownArrayHash TableDesign
Medium▶ Mock
359.Logger Rate Limiter
Full breakdownHash TableDesignData Stream
432.All O`one Data Structure
Full breakdownHash TableLinked ListDesign
1.Two Sum
Full breakdownArrayHash Table
Easy+10▶ Mock
875.Koko Eating Bananas
Full breakdownArrayBinary Search
Medium▶ Mock
3.Longest Substring Without Repeating Characters
Full breakdownHash TableStringSliding Window
Medium+13▶ Mock
2933.High-Access Employees
Full breakdownArrayHash TableString
Medium▶ Mock
347.Top K Frequent Elements
Full breakdownArrayHash TableDivide and Conquer
Medium+6▶ Mock
79.Word Search
Full breakdownArrayStringBacktracking
Medium+1▶ Mock
1010.Pairs of Songs With Total Durations Divisible by 60
Full breakdownArrayHash TableCounting
Medium▶ Mock
658.Find K Closest Elements
Full breakdownArrayTwo PointersBinary Search
Medium▶ Mock
45.Jump Game II
Full breakdownArrayDynamic ProgrammingGreedy
Medium▶ Mock
605.Can Place Flowers
Full breakdownArrayGreedy
2561.Rearranging Fruits
Full breakdownArrayHash TableGreedy
53.Maximum Subarray
Full breakdownArrayDivide and ConquerDynamic Programming
Medium+7▶ Mock
354.Russian Doll Envelopes
Full breakdownArrayBinary SearchDynamic Programming
Nth Highest Salary
Full breakdownDatabase
Medium▶ Mock
2039.The Time When the Network Becomes Idle
Full breakdownArrayBreadth-First SearchGraph Theory
Medium▶ Mock
Design Add and Search Words Data Structure
Full breakdownStringDepth-First SearchDesign
Medium▶ Mock
236.Lowest Common Ancestor of a Binary Tree
Full breakdownTreeDepth-First SearchBinary Tree
Medium+4▶ Mock
2559.Count Vowel Strings in Ranges
Full breakdownArrayStringPrefix Sum
Medium▶ Mock
1970.Last Day Where You Can Still Cross
Full breakdownArrayBinary SearchDepth-First Search
1650.Lowest Common Ancestor of a Binary Tree III
Full breakdownHash TableTwo PointersTree
Medium▶ Mock
44.Wildcard Matching
Full breakdownStringDynamic ProgrammingGreedy
253.Meeting Rooms II
Full breakdownArrayTwo PointersGreedy
Medium+7▶ Mock
1676.Lowest Common Ancestor of a Binary Tree IV
Full breakdownHash TableTreeDepth-First Search
Medium▶ Mock
2353.Design a Food Rating System
Full breakdownArrayHash TableString
Medium▶ Mock
146.LRU Cache
Full breakdownHash TableLinked ListDesign
Medium+9▶ Mock
2484.Count Palindromic Subsequences
Full breakdownStringDynamic Programming
1644.Lowest Common Ancestor of a Binary Tree II
Full breakdownTreeDepth-First SearchBinary Tree
Medium▶ Mock
297.Serialize and Deserialize Binary Tree
Full breakdownStringTreeDepth-First Search
Hard+4▶ Mock
1797.Design Authentication Manager
Full breakdownHash TableLinked ListDesign
Medium▶ Mock
3649.Number of Perfect Pairs
Full breakdownArrayMathTwo Pointers
Medium▶ Mock
2939.Maximum Xor Product
Full breakdownMathGreedyBit Manipulation
Medium▶ Mock
235.Lowest Common Ancestor of a Binary Search Tree
Full breakdownTreeDepth-First SearchBinary Search Tree
Medium▶ Mock

Frequently Asked Questions

What questions does Atlassian ask in coding interviews?

Atlassian coding interviews focus on Array, Backtracking, Binary Lifting, Binary Search, and other data structure problems. We compiled 48 questions from real Atlassian interviews. The most common topics are Array, Backtracking, Binary Lifting, Binary Search, Binary Search Tree. Filter by topic to see what comes up most often.

How many Atlassian coding interview questions are there?

InterviewSkool has 48 Atlassian coding interview questions: 5 Easy, 33 Medium, and 10 Hard. Most Atlassian interviews focus on Medium-difficulty problems, so prioritize those in your prep.

How should I prepare for Atlassian coding interviews?

Start with Medium difficulty problems. Group by topic (Array, Tree, DP) to build pattern recognition. Aim to solve 30 to 40 problems before your interview. Then practice under pressure with a mock interview.

Are Atlassian coding interview questions free?

Yes. All 48 Atlassian coding interview questions are free to browse with no sign-up required. You can filter by difficulty and topic tags. Start a mock interview with a free credit to practice under real pressure.

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