Can You Solve This Coding Question That Appears in Google and Microsoft Interviews?
Can You Solve This Coding Question That Appears in Google and Microsoft Interviews?
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LeetCode 652. Find Duplicate Subtrees
Given the root of a binary tree, return all duplicate subtrees.
For each kind of duplicate subtrees, you only need to return the root node of any one of them.
Two trees are duplicate if they have the same structure with the same node values.
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Time Complexity = O(n), where 'n' is the number of nodes
Time Complexity = O(n), where 'n' is the number of nodes
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