Problem Description:Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases.For example,"A man, a...
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其他好文 时间:
2014-07-07 16:03:32
阅读次数:
168
Problem Description:Given a stringsand a dictionary of wordsdict, add spaces insto construct a sentence where each word is a valid dictionary word.Ret...
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其他好文 时间:
2014-07-07 15:55:48
阅读次数:
208
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:
2014-07-07 15:34:56
阅读次数:
160
Valid Parentheses:Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid.The brackets m...
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其他好文 时间:
2014-07-01 21:24:05
阅读次数:
180
Given a string containing just the characters '(' and ')',
find the
length of the longest valid (well-formed) parentheses substring.For "(()",
the
longest valid parentheses substring is "()...
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其他好文 时间:
2014-07-01 09:09:06
阅读次数:
156
Evaluate the value of an arithmetic expression inReverse Polish Notation.Valid operators are+,-,*,/. Each operand may be an integer or another express...
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其他好文 时间:
2014-06-30 23:46:14
阅读次数:
288
昨天客户突然要求将某个角色的所有权限都不分页的放在一个页面修改,本地测试OK,通过;但发布后,点击该页面提交后一直报下面的错误:异常信息: Operation is not valid due to the current state of the object.错误源:System.Web堆栈信息...
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其他好文 时间:
2014-06-30 22:55:35
阅读次数:
407
错误代码:No
architectures to compile for (ONLY_ACTIVE_ARCH=YES, active arch=x86_64, VALID_ARCHS=armv7 armv7s)
1 xcodebuild 这个target的时候命令行报错。(yes 改为no)
LY_ACTIVE_ARCH=YES, active arch=x86...
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其他好文 时间:
2014-06-30 18:04:12
阅读次数:
219
Problem Description:Evaluate the value of an arithmetic expression in Reverse Polish Notation.Valid operators are+,-,*,/. Each operand may be an integ...
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其他好文 时间:
2014-06-30 14:32:54
阅读次数:
151
【题目】
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 = "catsanddog",
dict = ["cat", "cats", "and", "sand", "dog...
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其他好文 时间:
2014-06-30 00:51:41
阅读次数:
295