Stack Bash - Master data structures and algorithms

Sum of all nodes in Binary Tree

Given a binary tree that contains nodes with numbers, calculate the sum of all the nodes in the tree.
For example, let's say you're given the following binary tree:
Binary Tree Example
Your fuction should return 27, the sum of all nodes.

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9 Essential Trees & Graphs Coding Interview Problems

Master Trees & Graphs by trying the coding challenges below.
  1. 1.Inorder TraversalEasy
  2. 2.Tree SumEasy
  3. 3.Tree HeightEasy
  4. 4.LCAMedium
  5. 5.Max Path SumHard
  6. 6.Search mazeMedium
  7. 7.Number of islandsMedium
  8. 8.Kth SmallestMedium
  9. 9.Sort K ArraysHard

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