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1Count Good Nodes in Binary Treemedium
mediumGrind 75
Count Good Nodes in Binary Tree
Count Good Nodes in Binary 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
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Meet Allison & Tim
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Practice coding interviews out loud with real-time voice coaching. Your code actually runs.
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1Count Good Nodes in Binary Treemedium
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