Given a stringsand a dictionary of wordsdict, add spaces insto construct a sentence where each word is a valid dictionary word.Return all such possibl...
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其他好文 时间:
2015-01-17 16:22:26
阅读次数:
122
java转义符我一直认为是很难理解的东西,我常常把\符号和/符号弄混,不知道那一个是转义符 。
在java语言中你要知道的\是一个讨厌一个人的物种,\总喜欢秀恩爱,一般都是成对出现的如\\,但是也会有少量的奇葩\不喜欢另一半\,他们喜欢其他的字符,这些奇葩的字符就和人类中的同性恋一样不和大多数人喜欢的一样,他们喜欢的是特别的,如\和b在一起表示字符的边界,\r在一起表示回车,\n表示换行 \t表...
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编程语言 时间:
2015-01-16 19:10:00
阅读次数:
394
Validate if a given string is numeric.
Some examples:
"0" => true
" 0.1 " => true
"abc" => false
"1 a" => false
"2e10" => true
Note: It is intended for the problem statement to be ambiguo...
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其他好文 时间:
2015-01-16 16:49:43
阅读次数:
153
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:
2015-01-16 15:59:49
阅读次数:
183
以下是本人收集的jquery插件下载地址:.............版本自行选择。jquery官网:http://jquery.com/jquery.validate.js 官网下载地址:http://bassistance.de/jquery-plugins/jquery-plugin-valid...
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Web程序 时间:
2015-01-16 14:27:50
阅读次数:
1865
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 ke...
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编程语言 时间:
2015-01-16 10:12:49
阅读次数:
163
题目:
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"...
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编程语言 时间:
2015-01-15 20:25:10
阅读次数:
148
Validate 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 problem stat...
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其他好文 时间:
2015-01-15 18:07:03
阅读次数:
122
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:
2015-01-15 13:00:38
阅读次数:
156
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 not a ...
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其他好文 时间:
2015-01-15 09:26:10
阅读次数:
160