Determine if a Sudoku is valid, according to: Sudoku Puzzles - The Rules.
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其他好文 时间:
2014-06-27 12:18:39
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153
Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases.
For example,
"A
man, a plan, a canal: Panama" is a palindrome.
"race
a car" is no...
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其他好文 时间:
2014-06-27 10:36:41
阅读次数:
183
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 with the character '.'.
A par...
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其他好文 时间:
2014-06-27 09:38:48
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189
Given a string s and a dictionary of words dict, add spaces in s to construct a sentence where each word is a valid dictionary word.
Return all such possible sentences.
For example, given
s = "...
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其他好文 时间:
2014-06-27 09:23:00
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220
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....
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其他好文 时间:
2014-06-27 09:15:12
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196
Determine if a Sudoku is valid, according to:Sudoku Puzzles - The Rules.The Sudoku board could be partially filled, where empty cells are filled with ...
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其他好文 时间:
2014-06-26 19:35:09
阅读次数:
266
使用“VS2013 开发人员命令提示”运行签名工具。转到要签名的文件目录运行命令:```csharpsigntool sign /a 要签名的程序.exe```signtool 的相关命令```csharpUsage: signtool [options] Valid command...
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其他好文 时间:
2014-06-26 18:31:16
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1092
Given an array of strings, return all groups of strings that are anagrams.Note: All inputs will be in lower-case.Analysis: 这个题简单的版本是判断两个单词是不是anagram,一...
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其他好文 时间:
2014-06-26 12:47:48
阅读次数:
144
Given a string containing just the characters '(' and ')', find the length of the longest valid (well-formed) parentheses substring.For "(()", the lon...
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其他好文 时间:
2014-06-25 11:07:45
阅读次数:
230
给出一个字符串求是palindrome和anagram的比率是多少。
知识点:
1 DBL_MAX 64位double的最长数大概是1.7E308,很大很大,比long long大上不知多少倍,故此大概能容纳150!的数值,不能容纳200!的数值
2 偶数的时候,不能有字母重复为基数次,否则不能组成palindrome
3 基数的时候,只能有且只有有一个字母重复为基数次,用于放在中...
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其他好文 时间:
2014-06-25 10:00:13
阅读次数:
193