Answer: Samsung OA Question 2024 August | Trees & BFS | on-campus

Solution: Binary Tree Level Order Traversal — BFS with Queue Approach Level order traversal processes nodes level by level from left to right, which is the classic use case for Breadth-First Search (BFS) using a queue. Enqueue the root node to start. At each iteration, record the current queue size — this is the number of nodes at the current level. Dequeue exactly that many nodes, collecting their values into a level list, and enqueue their children for the next ...