https://leetcode.com/problems/vertical-order-traversal-of-a-binary-tree/ https://leetcode.com/problems/vertical-order-traversal-of-a-binary-tree/discuss/260502/C%2B%2B-BFSDFS https://leetcode.com/problems/vertical-order-traversal-of-a-binary-tree/discuss/231140/Add-clarification-for-the-output...
Given the root of a binary tree, calculate the vertical order traversal of the binary tree. For each node at position (row, col), its left and right children will be at positions (row + 1, col - 1) and (row + 1, col + 1) respectively. The root of the tree is at (0, 0)....
Problem Given a binary tree, return the vertical order traversal of its nodes' values. (ie, from top to bottom, column by column). If two nodes are in the same row and column, the order should be from left to right. Examples 1: Input: [3,9,20,null,null,15,7] 3 /\ / \ 9 ...
Running a vertical line fromX = -infinitytoX = +infinity, whenever the vertical line touches some nodes, we report the values of the nodes in order from top to bottom (decreasingYcoordinates). If two nodes have the same position, then the value of the node that is reported first is the...
* Definition for a binary tree node. * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode(int x) : val(x), left(NULL), right(NULL) {} * }; */classSolution{public:voidtraversal(TreeNode* root,intx,inty, vector<PPR>& res){if(root !=NULL){ ...
Leetcode-987 Vertical Order Traversal of a Binary Tree(二叉树的垂序遍历) 水过去了(发出了混子的声音 1#definepb push_back2classSolution3{4public:5vector<vector<int> > verticalTraversal(TreeNode*root)6{78vector<vector<int>>rnt;9if(!root)10returnrnt;1112vector<vector<vector<int>>> v(1000,...
Given a binary tree, return thevertical ordertraversal of its nodes' values. (ie, from top to bottom, column by column). If two nodes are in the same row and column, the order should be fromleft to right. Examples: Given binary tree[3,9,20,null,null,15,7], ...
res.push_back(a.second); }returnres; } }; Github 同步地址: https://github.com/grandyang/leetcode/issues/314 类似题目: Binary Tree Level Order Traversal 参考资料: https://leetcode.com/problems/binary-tree-vertical-order-traversal/ https://leetcode.com/problems/binary-tree-vertical-order-trav...
面经:print the top view of a binary tree 实现:Time O(nlogn) BFS-n, map-logn Space O(n) classSolution {public: vector<vector<int>> verticalOrder(TreeNode*root) { vector<vector<int>>res;if(!root)returnres; map<int, vector<int>>m; ...
原题链接在这里:https://leetcode.com/problems/binary-tree-vertical-order-traversal/ 题目: Given a binary tree, return thevertical ordertraversal of its nodes' values. (ie, from top to bottom, column by column). If two nodes are in the same row and column, the order should be from left...