[geeksforgeeks] Bottom View of a Binary Tree

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[geeksforgeeks] Bottom View of a Binary Tree

http://www.geeksforgeeks.org/bottom-view-binary-tree/ Bottom View of a Binary Tree Given a Binary Tree, we need to print the bottom view from left to right. A node x is there in output if x is the bottommost node at its horizontal distance. Horizonta…

【LeetCode】199. Binary Tree Right Side View

Binary Tree Right Side View Given a binary tree, imagine yourself standing on the right side of it, return the values of the nodes you can see ordered from top to bottom. For example:Given the following binary tree, 1 <--- / \ 2 3 <--- \ \ 5 4 <-…

【刷题-LeetCode】199 Binary Tree Right Side View

Binary Tree Right Side View Given a binary tree, imagine yourself standing on the right side of it, return the values of the nodes you can see ordered from top to bottom. Example: Input: [1,2,3,null,5,null,4] Output: [1, 3, 4] Explanation: 1 <--- / \…

[geeksforgeeks] Convert a given Binary Tree to Doubly Linked List

http://www.geeksforgeeks.org/in-place-convert-a-given-binary-tree-to-doubly-linked-list/ Given a Binary Tree (Bt), convert it to a Doubly Linked List(DLL). The left and right pointers in nodes are to be used as previous and next pointers respectively…

Print Nodes in Top View of Binary Tree

Top view of a binary tree is the set of nodes visible when the tree is viewed from the top. Given a binary tree, print the top view of it. The output nodes can be printed in any order. Expected time complexity is O(n) A node x is there in output if x…

Convert a given Binary Tree to Doubly Linked List

The question and solution are from: http://www.geeksforgeeks.org/convert-given-binary-tree-doubly-linked-list-set-3/ Given a Binary Tree (BT), convert it to a Doubly Linked List(DLL) In-Place. The left and right pointers in nodes are to be used as pr…