Atlassian — DSA Interview Questions

30 problems with animated explanations & C# solutions. (~32 common interview questions)

Step through algorithms visually, then solve with stdin/stdout auto-judge.

Medium Container With Most Water
Animate
Hard Sliding Window Maximum
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Hard Largest Rectangle in Histogram
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Hard Median of Two Sorted Arrays
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Easy Linked List Cycle
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Easy Diameter of Binary Tree
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Medium Count Good Nodes in Binary Tree
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Medium Design Add and Search Words Data Structure
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Medium Design Twitter
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Medium Word Search
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Medium Pacific Atlantic Water Flow
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Medium Number of Connected Components in an Undirected Graph
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Hard Alien Dictionary
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Medium Palindromic Substrings
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Medium Unique Paths
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Hard Distinct Subsequences
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Medium Gas Station
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Medium Non-overlapping Intervals
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Easy Happy Number
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Easy Counting Bits
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Easy Two Sum
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Easy Valid Palindrome
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Medium Longest Repeating Character Replacement
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Medium Generate Parentheses
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Medium Find Minimum in Rotated Sorted Array
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Medium Remove Nth Node From End of List
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Hard Reverse Nodes in k-Group
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Medium Lowest Common Ancestor of a Binary Search Tree
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Hard Binary Tree Maximum Path Sum
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Medium K Closest Points to Origin
Animate All companies
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