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Vertical Order Traversal of a Binary Tree

Explore how to find the vertical order traversal of a binary tree by applying breadth-first search techniques. Understand how to return node values column-wise from top to bottom and handle nodes at the same row and column. This lesson helps you develop an efficient approach to this common tree traversal pattern.

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Statement

Find the vertical order traversal of a binary tree when the root of the binary tree is given. In other words, return the values of the nodes from top to bottom in each column, column by column from left to right. If there is more than one node in the same column and row, return the values from left to right.

Constraints:

  • The number of nodes in the tree is in the range [1, 500].
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