Snap — DSA Interview Questions

30 problems with animated explanations & C# solutions. (~70 common interview questions)

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

Hard Reverse Nodes in k-Group
Animate
Medium Lowest Common Ancestor of a Binary Search Tree
Animate
Hard Binary Tree Maximum Path Sum
Animate
Medium K Closest Points to Origin
Animate
Medium Permutations
Animate
Medium Number of Islands
Animate
Medium Course Schedule
Animate
Medium Min Cost to Connect All Points
Animate
Medium House Robber
Animate
Medium Word Break
Animate
Medium Target Sum
Animate
Medium Maximum Subarray
Animate
Medium Valid Parenthesis String
Animate
Medium Rotate Image
Animate
Medium Detect Squares
Animate
Medium Reverse Integer
Animate
Medium Valid Sudoku
Animate
Hard Trapping Rain Water
Animate
Easy Valid Parentheses
Animate
Easy Binary Search
Animate
Easy Reverse Linked List
Animate
Medium Find the Duplicate Number
Animate
Easy Balanced Binary Tree
Animate
Medium Validate Binary Search Tree
Animate
Hard Word Search II
Animate
Hard Find Median from Data Stream
Animate
Medium Palindrome Partitioning
Animate
Medium Surrounded Regions
Animate
Medium Graph Valid Tree
Animate
Medium Cheapest Flights Within K Stops
Animate All companies
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