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Binary Tree Level Order Traversal (easy)
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Problem Statement

Given a binary tree, populate an array to represent its level-by-level traversal. You should populate the values of all nodes of each level from left to right in separate sub-arrays.

Example 1:

Image

Example 2:

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Constraints:

  • The number of nodes in the tree is in the range [0, 2000].
  • -1000 <= Node.val <= 1000

Try it yourself

Try solving this question here:

Python3
Python3