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Question: Given the root of a binary tree, invert the tree, and return its root. class Solution { public TreeNode invertTree(TreeNode root) { ...

Question: Given the root of a binary tree, return the sum of values of its deepest leaves. Link to the actual Question #Solution This question is a...

Question: Given a binary tree, find its minimum depth. The minimum depth is the number of nodes along the shortest path from the root node down to the...

Question: Given the root of a binary tree, return the average value of the nodes on each level in the form of an array. Answers within 10-5 of the...