#Coding

Handle different edge cases in your solution.

Solve a hard binary tree problem similar to serialize & deserialize binary tree.

Solve a coding problem that involves implementing multithreading using locks and synchronization to manage resource access.

Implement a solution that uses Binary Search to efficiently find a target element in a sorted array. Ensure optimal runtime complexity.

Solve a coding problem that involves the HashMap data structure. Focus on efficient operations and potential edge cases.