437. Path Sum III https://leetcode.com/problems/path-sum-iii
513. Find Bottom Left Tree Value https://leetcode.com/problems/find-bottom-left-tree-value
1261. Find Elements in a Contaminated Binary Tree https://leetcode.com/problems/find-elements-in-a-contaminated-binary-tree
386. Lexicographical Numbers https://leetcode.com/problems/lexicographical-numbers
1104. Path In Zigzag Labelled Binary Tree https://leetcode.com/problems/path-in-zigzag-labelled-binary-tree
1145. Binary Tree Coloring Game https://leetcode.com/problems/binary-tree-coloring-game
2096. Step-By-Step Directions From a Binary Tree Node to Another https://leetcode.com/problems/step-by-step-directions-from-a-binary-tree-node-to-another
572. Subtree of Another Tree https://leetcode.com/problems/subtree-of-another-tree
1367. Linked List in Binary Tree https://leetcode.com/problems/linked-list-in-binary-tree
Prerequisite Knowledge
Before reading this article, you should first learn:
Binary tree problems often involve other algorithm techniques, but they always revolve around the binary tree traversal framework. Let's look at a few examples to understand this better.
