Valid ParenthesesGiven a string containing just the characters'(',')','{','}','['and']', determine if the input string is valid.The brackets must clos...
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其他好文 时间:
2014-07-24 21:42:52
阅读次数:
187
Given a string containing just the characters'('and')', find the length of the longest valid (well-formed) parentheses substring.For"(()", the longest...
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其他好文 时间:
2014-07-24 12:11:55
阅读次数:
253
Validate if a given string is numeric.Some examples:"0"=>true" 0.1 "=>true"abc"=>false"1 a"=>false"2e10"=>true题解:题目不难,就是有点麻烦,要注意的地方很多,总结一下:前面和后面的空格要用s...
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其他好文 时间:
2014-07-23 20:43:55
阅读次数:
222
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:
2014-07-22 22:52:56
阅读次数:
222
一:添加字段:ALTER TABLE `jifen_gather` ADD `lo_baidu_valid_uv` INT( 11 ) NOT NULL DEFAULT '0' COMMENT '有效的百度搜索uv' AFTER `lo_baidu_no_xiala` ;
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数据库 时间:
2014-07-22 22:36:56
阅读次数:
240
The DecoderWrite a complete program that will correctly decode a set of characters into a valid message. Your program should read a given file of a si...
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其他好文 时间:
2014-07-22 00:38:34
阅读次数:
235
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:
2014-07-22 00:30:38
阅读次数:
212
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:
2014-07-19 22:34:50
阅读次数:
196
Evaluate the value of an arithmetic expression in Reverse Polish Notation.
Valid operators are +, -, *, /.
Each operand may be an integer or another expression.
Some examples:
["2", "1", ...
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其他好文 时间:
2014-07-18 11:19:56
阅读次数:
210
给急性格的读者: 请参考《Intel 64 and IA32 Architectures Software Develeloper's Manual》。其中有CMPXCHG指令和LOCK指令前缀。或者AMD等其他厂商的开发指南。在多线程编程中,对某一资源的同步操作是保证资源状态一致性的关键。这个需要...
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编程语言 时间:
2014-07-18 10:20:13
阅读次数:
767