COMPUTER SCIENCE AND ENGINEERING
DATA STRUCTURES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Post-order traversal
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In-order traversal
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Pre-order traversal
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Level-order traversal
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Detailed explanation-1: -Explanation: In Depth First Search, we explore all the nodes aggressively to one path and then backtrack to the node. Hence, it is equivalent to the pre-order traversal of a Binary Tree.
Detailed explanation-2: -Yes! DFS and Preorder are equivalent. BFS is a totally different beast compare to preorder, inorder, and postorder. Here is the link to tree traversal algorithms.
Detailed explanation-3: -Preorder Traversal is another variant of DFS. Where atomic operations in a recursive function, are as same as Inorder traversal but with a different order. Here, we visit the current node first and then goes to the left sub-tree.
Detailed explanation-4: -Preorder traversal of binary tree is a traversal method, where the root node is visited first, then left subtree and then the right sub tree. Unlike array and linked lists, linear data structures, we have several ways of traversing binary trees due to their hierarchical nature.
Detailed explanation-5: -Note: pre-order traversal is different from the BFS traversal. Hopefully, that helps! Great answer. In addition, something that may help to visualize the difference is that a pre-order search is typically implemented using a Stack data structure, whilst BFS typically uses a Queue.