标签： traversal
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513-Find-Bottom-Left-Tree-Value
Given a binary tree, find the leftmost value in the las…
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leetcode508-Most-Frequent-Subtree-Sum
Given the root of a tree, you are asked to find the mos…
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leetcode501-Find-Mode-in-Binary-Search-Tree
Given a binary search tree (BST) with duplicates, find …
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leetcode498-Diagonal-Traverse
其实这道题目不难，只要捋清楚一些边界的场景即可。自上而下遍历数组时，一定是自右往左移动的，因此下标移动的方向为…
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[LeetCode] 617. Merge Two Binary Trees
Given two binary trees and imagine that when you put on…