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easyGrind 75
Invert Binary Tree
This is really about exploring a state space without revisiting the same work. It's a great warm-up that builds traversal modeling without a ton of moving parts. Be clear about what a state is; that's the difference between BFS/DFS working or blowing up.
BFS / DFSTrees
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👨💼
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
1Invert Binary Treeeasy
2Part 2
3Part 3
Start Part 1 to unlock your next challenge
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