Complete thefunction in the editor below, which hasparameter: a pointer to the root of a binary tree. It must print the values in the tree's preorder traversal as a single line of space-separated values. Input Format Our test code passes the root node of a binary tree to thepreOrderfu...
This is to test your knowledge on BST and its traversal. Flatting BST into an array using in-order, and check that array. It is that simple: classSolution {public:voidserial(TreeNode *root, vector<int> &vec) {if(!root)return;if(root->left) serial(root->left, vec); vec.push_back(...
traversal manipulation algorithms BFS(breadth-first search) and DFS(depth-first search) (video) BFS notes: level order (BFS, using queue) time complexity: O(n) space complexity: best: O(1), worst: O(n/2)=O(n) DFS notes: time complexity: O(n) space complexity: best: O(log n...