Tree problems

9 Tree DSA practice problems on CampusCode, each with statement, examples and constraints.

• 684. Maximum Binary Tree (Monotonic Stack Build) Hard Stack
• 686. Flatten Binary Tree to Linked List Hard Stack
• 914. Minimum Time to Collect All Apples Medium Trees
• 918. Delete Node and Return Forest Medium Trees
• 959. Lowest Common Ancestor Using Binary Lifting Hard Trees
• 960. LCA + Distance Queries on a Tree Hard Trees
• 1088. Minimum Height Trees — Topological Trim Hard Graphs
• 1389. Maximum Genetic Difference Query Hard Bit Manipulation
• 1392. Shortest Path in Binary Tree via XOR Hard Bit Manipulation