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Construct Binary Tree from Inorder and Postorder Traversal
Given inorder and postorder traversal of a tree, construct the binary tree.Note:You may assume that duplicates do not exist in the tree. 1 class Solut...
分类:其他好文   时间:2014-08-17 01:03:21    阅读次数:199
leetcode -- Binary Tree Postorder Traversal
历史不容假设[问题描述]Given a binary tree, return thepostordertraversal of its nodes' values.For example:Given binary tree{1,#,2,3}, 1 \ 2 / 3retu...
分类:其他好文   时间:2014-08-14 19:30:29    阅读次数:191
Binary Tree Postorder Traversal
1 class Solution { 2 public: 3 vector postorderTraversal(TreeNode *root) { 4 if(root->left == NULL && root->right == NULL) 5 { 6 ...
分类:其他好文   时间:2014-08-13 10:16:05    阅读次数:168
leetcode 刷题之路 78 Binary Tree Postorder Traversal
非递归方式实现二叉树的后序遍历。...
分类:其他好文   时间:2014-08-12 17:24:24    阅读次数:173
先序+中序和中序+后序建树
思路:先序的第一个元素和后序的最后一个元素是当前子树的根,然后遍历中序序列,找到左右子树的分界线,递归建左子树和右子树。 class Solution { public: /*由于是oj,这里假设给的序列是合法的,正常情况是需要判断不合法情况的 */ TreeNode *buildTree(vector &inorder, vector &postorder,int instar...
分类:其他好文   时间:2014-08-11 21:37:42    阅读次数:504
Binary Tree Postorder Traversal
Given a binary tree, return the postorder traversal of its nodes' values.For example:Given binary tree {1,#,2,3}, 1 \ 2 / 3return [3,2,1...
分类:其他好文   时间:2014-08-11 11:45:02    阅读次数:251
Binary Tree Postorder Traversal && Binary Tree Preorder Traversal
注:后序遍历是较麻烦的一个,不可大意。关键两点: 1.要走到 p->left | p->right ==0, 2.每次出栈出两个结点。
分类:其他好文   时间:2014-08-10 01:45:39    阅读次数:286
leetcode 刷题之路 64 Construct Binary Tree from Inorder and Postorder Traversal
Given inorder and postorder traversal of a tree, construct the binary tree. Note: You may assume that duplicates do not exist in the tree. 给出二叉树的中序遍历和后序遍历结果,恢复出二叉树。 后序遍历序列的最后一个元素值是二叉树的根节点的值,查找...
分类:其他好文   时间:2014-08-09 23:15:09    阅读次数:312
[leetcode]Binary Tree Postorder Traversal
Binary Tree Postorder TraversalGiven a binary tree, return thepostordertraversal of its nodes' values.For example:Given binary tree{1,#,2,3}, 1 \...
分类:其他好文   时间:2014-08-08 23:58:26    阅读次数:485
[LeetCode] Construct Binary Tree from Inorder and Postorder Traversal
Given inorder and postorder traversal of a tree, construct the binary tree.Note: You may assume that duplicates do not exist in the tree.class Solutio...
分类:其他好文   时间:2014-08-04 23:57:18    阅读次数:476
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