题目
Given a binary tree, return the inorder traversal of its nodes' values.
For example:
Given binary tree {1,#,2,3},
1
2
/
3
return [1,3,2].
Note: Recur...
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其他好文 时间：
2014-06-20 10:22:00
阅读次数：
221
【题目】
Given a binary tree, return the bottom-up level order traversal of its nodes' values. (ie, from left to right, level by level from leaf to root).
For example:
Given binary tree {3,9,20,#,#,15,7},
3
/ 9 20
/ 15 7
return its b...
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其他好文 时间：
2014-06-20 09:42:30
阅读次数：
224
Partition ListGiven a linked list and a valuex,
partition it such that all nodes less thanxcome before nodes greater than or
equal tox.You should pres...
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其他好文 时间：
2014-06-07 06:24:57
阅读次数：
179
Given a sorted linked list, delete all nodes
that have duplicate numbers, leaving onlydistinctnumbers from the original
list.For example,Given1->2->3-...
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其他好文 时间：
2014-06-06 06:57:18
阅读次数：
271
Given a linked list, reverse the nodes of a
linked list k at a time and return its modified list. If the number of nodes is
not a multiple of k then l...
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其他好文 时间：
2014-06-05 22:13:19
阅读次数：
391
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...
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其他好文 时间：
2014-06-05 14:10:38
阅读次数：
304
Given a linked list, swap every two adjacent
nodes and return its head.For example,Given1->2->3->4, you should
return the list as2->1->4->3.Your algor...
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其他好文 时间：
2014-06-05 13:41:44
阅读次数：
231
class Solution {public: ListNode
*swapPairs(ListNode *head) { ListNode *a = NULL; ListNode *b = NULL; ListNode
*tail = NULL; ...
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其他好文 时间：
2014-06-05 12:55:24
阅读次数：
216
【题目】
Given two binary trees, write a function to check if they are equal or not.
Two binary trees are considered equal if they are structurally identical and the nodes have the same value.
【题意】
判断了两个二叉树是否相等
【思路】
递归...
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其他好文 时间：
2014-06-02 11:03:03
阅读次数：
205
【题目】
Given a binary tree, determine if it is a valid binary search tree (BST).
Assume a BST is defined as follows:
The left subtree of a node contains only nodes with keys less than the node's key.
The right subtree of a node contains only nodes with ke...
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其他好文 时间：
2014-06-02 10:29:55
阅读次数：
257
