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树结构
树( Tree):n(n≥O) 个结点的有限集。(只有一个根节点,子集互不相交)节点的度(Degree):节点拥有的子节点数(树的degree = max(各子节点的degree))叶(leaf):degree = 0树的深度(Depth):节点的最大层次树的表示: 双亲表示法:各节点存在一个指针....
分类:其他好文   时间:2015-07-05 00:50:11    阅读次数:241
【LeetCode 111】Minimum Depth of Binary Tree
方法1:递归。int minDepth(TreeNode* root) { if (root == NULL) return 0; if (root->left == NULL) { return minDepth(root->right) + 1; }...
分类:其他好文   时间:2015-07-04 23:21:39    阅读次数:143
Minimum Depth of Binary Tree
/** * Definition for a binary tree node. * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode(int x) : val(x), left(NULL), right(NULL) {} * }; */ class...
分类:其他好文   时间:2015-07-03 22:09:52    阅读次数:127
LeetCode练习-求二叉树的深度-Maximu Depth of Binary Tree
题目大意:很简单,只需要找出一颗二叉树的最大深度即可,貌似没有时间和空间的要求。求解方法:更简单,只需要按照宽度优先的方法去查找即可,在这里我用a队列保存待扩展的节点,用b来保存a扩展出来的节点,再利用t中间变量来交换a和b,直到a列队为空时,结束。 注意边界条件,root=NULL时,应该返回0...
分类:其他好文   时间:2015-07-03 19:14:06    阅读次数:110
Maximum Depth of Binary Tree
/** * Definition for a binary tree node. * struct TreeNode { * int val; * TreeNode *left; * TreeNode *right; * TreeNode(int x) : val(x), left(NULL), right(NULL) {} * }; */ class...
分类:其他好文   时间:2015-07-03 12:29:21    阅读次数:132
LeetCode_Maximum Depth of Binary Tree
LeetCode_Maximum Depth of Binary Tree 题解...
分类:其他好文   时间:2015-06-30 12:59:49    阅读次数:94
LeetCode_Minimum Depth of Binary Tree
LeetCode_Minimum Depth of Binary Tree 解题思路...
分类:其他好文   时间:2015-06-30 12:59:11    阅读次数:93
Minimum Depth of Binary Tree
http://oj.leetcode.com/problems/minimum-depth-of-binary-tree/This question is pretty similar to the solution of Maximum Depth of Binary Tree, the only...
分类:其他好文   时间:2015-06-30 06:34:15    阅读次数:138
Balanced Binary Tree
问题描述:Given a binary tree, determine if it is height-balanced.For this problem, a height-balanced binary tree is defined as a binary tree in which the depth of the two subtrees of every node never diffe...
分类:其他好文   时间:2015-06-29 20:19:54    阅读次数:104
Maximum Depth of Binary Tree
Given a binary tree, find its maximum depth.The maximum depth is the number of nodes along the longest path from the root node down to the farthest le...
分类:其他好文   时间:2015-06-27 06:24:03    阅读次数:127
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