Evaluate the value of an arithmetic expression inReverse Polish Notation.Valid operators are+,-,*,/. Each operand may be an integer or another express...
分类:
其他好文 时间:
2014-06-28 22:31:11
阅读次数:
323
学习linux以来将centos改的也不少了,也不知道这个问题是由于那个修改来的。最近改bash的操作环境配置文件,用到了~/.bashrc这个文件,发现里面被我修改过。那是当年安装fcitx输入法的时候曾经设置过个人环境变量如下我当时是直接将这段粘贴到.bashrc这个文件中了,导致‘//这是新的...
分类:
其他好文 时间:
2014-06-28 19:20:51
阅读次数:
1675
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...
分类:
其他好文 时间:
2014-06-28 12:40:47
阅读次数:
219
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...
分类:
其他好文 时间:
2014-06-18 21:58:07
阅读次数:
220
responseMsg();}else{ $wechatObj->valid();}class wechatCallbackapiTest{ public function valid() { $echoStr = $_GET["echostr"]; i...
分类:
微信 时间:
2014-06-18 19:37:39
阅读次数:
513
No architectures to compile for(ONLY_ACTIVE_ARCH=YES 这种错误 修改building settings下 Build Active Architecture only 为NO即可。dyld: Symbol not found: _objc_setP...
分类:
其他好文 时间:
2014-06-18 15:30:00
阅读次数:
260
Given a string containing just the characters'(',')','{','}','['and']', determine if the input string is valid.The brackets must close in the correct ...
分类:
其他好文 时间:
2014-06-18 12:56:59
阅读次数:
155
问题:
No architectures to compile for (ONLY_ACTIVE_ARCH=YES, active arch=arm64, VALID_ARCHS=armv7 armv7s)
解决:
Project ->Target->Build Setting ->搜索 Build Active Architecture Only ->把值改成NO...
分类:
其他好文 时间:
2014-06-17 22:20:22
阅读次数:
374
题目
Given a string containing just the characters '(', ')', '{', '}', '[' and ']',
determine if the input string is valid.
The brackets must close in the correct order, "()" and "()[]{}" ...
分类:
其他好文 时间:
2014-06-17 21:34:00
阅读次数:
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 po...
分类:
其他好文 时间:
2014-06-17 21:15:35
阅读次数:
211