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Evaluate Reverse Polish Notation (STRING-TYPE CONVERTION)
QuestionEvaluate the value of an arithmetic expression in Reverse Polish Notation.Valid operators are +, -, *, /. Each operand may be an integer or an...
分类:其他好文   时间:2014-12-17 00:15:15    阅读次数:174
[leetcode]Restore IP Addresses
问题描述: Given a string containing only digits, restore it by returning all possible valid IP address combinations. For example: Given "25525511135", return ["255.255.11.135", "255.255.111.35"]. (O...
分类:其他好文   时间:2014-12-16 17:04:09    阅读次数:152
Leetcode: Evaluate Reverse Polish Notation
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:2014-12-15 23:15:31    阅读次数:231
458 - The Decoder & C语言gets函数,字符输出输出 & toascii()
Write a complete program that will correctly decode a set of characters into a valid message. Your program should read a given file of a simple coded ...
分类:编程语言   时间:2014-12-15 16:46:15    阅读次数:225
用 PHP 进行 HTTP 认证
"carbonell"); $valid_users = array_keys($valid_passwords); $user = $_SERVER[‘PHP_AUTH_USER‘]; $pass = $_SERVER[‘PHP_AUTH_PW‘]; $validated = (in_array($user, $valid_users)) && ($pass == $valid_passw...
分类:Web程序   时间:2014-12-14 20:06:35    阅读次数:158
Evaluate Reverse Polish Notation
Catalogue:string-类型转换 Question Evaluate the value of an arithmetic expression in Reverse Polish Notation. Valid operators are +, -, *, /. Each operand may be an integer or another expression. Some...
分类:其他好文   时间:2014-12-14 13:20:32    阅读次数:130
Xcode Build Settings中的Architecture概述
Xcode 6.1版本在新建一个工程的时候,会给我们做一些默认的Build Settings,其中有一种很重要的就是Architecture的设置,先来看一张图片,如下所示: 在第二行的Architectures中,设置的是标准的架构,里面包括armv7,arm64.这个编译选项指定了工程将被编译成支持哪些指令集,支持指令集是通过编译生成对应的二进制数据包实现的,如果支持的指令集数目有多...
分类:其他好文   时间:2014-12-13 18:02:35    阅读次数:215
HappyLeetcode2: Valid Palindrome
题目解题步骤对字符串进行处理,字符小写,去掉多余标点。对空字符串的情况进行判断。建立一个新的字符串对象,存入原字符串翻转后的结果如果这两个字符串相等,那么返回True,否则,返回False。我的答案第1版:class Solution: # @param s, a string # @return ...
分类:移动开发   时间:2014-12-13 17:52:21    阅读次数:221
nginx配置图片防盗链
location ~ .*\.(gif|jpg|jpeg|png|bmp|swf)${ expires 30d; access_log off; valid_referers none blocked *.lee.com *.xing.com ; if ($invalid...
分类:其他好文   时间:2014-12-12 16:14:04    阅读次数:214
Leetcode: Valid Number
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:2014-12-12 14:33:25    阅读次数:156
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