Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases.For example, "A man, a plan, a canal: Pan...
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其他好文 时间：
2014-08-01 22:31:42
阅读次数：
208
Linked List Cycle
Total Accepted: 24397 Total
Submissions: 68598My Submissions
Given a linked list, determine if it has a cycle in it.
Follow up:
Can you solve it without using extra sp...
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其他好文 时间：
2014-08-01 19:52:42
阅读次数：
221
题目：Determine if a Sudoku is valid, according to: Sudoku Puzzles - The Rules.The Sudoku board could be partially filled, where empty cells are filled ....
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编程语言 时间：
2014-08-01 10:31:31
阅读次数：
261
题目：Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases.For example,"A man, a plan, a canal: ....
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编程语言 时间：
2014-08-01 10:27:11
阅读次数：
310
Balanced Binary TreeGiven a binary tree, determine if it is height-balanced.For this problem, a height-balanced binary tree is defined as a binary tre...
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其他好文 时间：
2014-07-31 23:20:20
阅读次数：
267
Path SumGiven a binary tree and a sum, determine if the tree has a root-to-leaf path such that adding up all the values along the path equals the give...
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其他好文 时间：
2014-07-31 23:18:10
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227
Validate Binary Search TreeGiven a binary tree, determine if it is a valid binary search tree (BST).Assume a BST is defined as follows:The left subtre...
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其他好文 时间：
2014-07-31 23:11:40
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225
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...
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编程语言 时间：
2014-07-31 20:55:47
阅读次数：
197
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 n...
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其他好文 时间：
2014-07-31 16:08:26
阅读次数：
283
测试Apache服务器：重启apache： sudo /usr/local/apache/bin/apachectl restart 若出现错误： httpd: Could not reliably determine the server's fully qualified domain ...
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其他好文 时间：
2014-07-31 12:34:06
阅读次数：
174
