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1Validate BSTmedium
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3Part 3
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mediumGrind 75
Validate Binary Search Tree
Validate Binary Search Tree is a traversal problem: the hard part is modeling the state you visit. Interviewers love it because it reveals your traversal modeling and your edge-case discipline. Once your traversal structure is solid, you can reuse it across dozens of problems.
BFS / DFSTrees
👩🏫
👨💼
Meet Allison & Tim
Your AI coaches
Practice coding interviews out loud with real-time voice coaching. Your code actually runs.
Free · No sign up · Early access
1Validate BSTmedium
2Part 2
3Part 3
Start Part 1 to unlock your next challenge
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