有时候我们需要安装ruby插件的时候,会报如下错误:ERROR: Could not find a valid gem 'rdiscount' (>= 0), here is why: Unable to download data from https://rubygems.o...
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其他好文 时间:
2014-11-17 17:34:59
阅读次数:
221
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:
2014-11-17 17:18:49
阅读次数:
183
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:
2014-11-17 14:02:09
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146
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:
2014-11-17 09:12:02
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179
关于这道题目,不得不感慨leetcode真的是一个不错的网站,之前的代码是有bug的,当时AC了,现在测试用例更加完善了,于是不能AC了。
题目描述:
Given a binary tree, determine if it is a valid binary search tree (BST).
Assume a BST is defined as follows:
The le...
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其他好文 时间:
2014-11-16 23:08:48
阅读次数:
362
今天用因为用git,所以把项目移出了workspace(git不推荐将repository放到workspace里面),然后就报错: Archive for required library XXX in project cannot be read or is not a valid ZIP file 发现项目下的...
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移动开发 时间:
2014-11-16 18:57:45
阅读次数:
185
Valid NumberValidate if a given string is numeric.Some examples:"0"=>true" 0.1 "=>true"abc"=>false"1 a"=>false"2e10"=>trueNote:It is intended for the ...
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其他好文 时间:
2014-11-16 13:16:23
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133
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:
2014-11-16 01:52:28
阅读次数:
227
Given a string containing only digits, restore it by returning all possible valid IP address combinations. For example:Given "25525511135",return ["25...
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其他好文 时间:
2014-11-16 00:29:23
阅读次数:
338
Given a string containing just the characters'(',')','{','}','['and']', determine if the input string is valid.The brackets must close in the correct ...
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其他好文 时间:
2014-11-15 15:23:46
阅读次数:
179