LC #102

Author: aditya43

26-LeetCode/07-Binary-Tree-Level-Order-Traversal-LC-102.js

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+/*
+102. Binary Tree Level Order Traversal
+Medium
+
+Given a binary tree, return the level order traversal of its nodes' values. (ie, from left to right, level by level).
+
+For example:
+Given binary tree [3,9,20,null,null,15,7],
+    3
+   / \
+  9  20
+    /  \
+   15   7
+
+return its level order traversal as:
+[
+  [3],
+  [9,20],
+  [15,7]
+]
+*/