Height or Depth of a Binary Tree.java. ... we can notice that after we process the last node of the current level, the next level is completely in the queue. We use this property and insert a special ...

Maximum Level Sum of a Binary Tree.java. Top. ... Given the root of a binary tree, the level of its root is 1, the level of its children is 2, and so on. Return the smallest level X such that the sum ...