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How do I create a URL shortener?

... I would continue your "convert number to string" approach. However, you will realize that your proposed algorithm fails if your ID is a prime and greater than 52. Theoretical background You need a Bijective Function f. This is necessary so that you can find a inve...
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Adding a newline into a string in C#

I have a string. 12 Answers 12 ...
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Should I initialize variable within constructor or outside constructor [duplicate]

...fference .But in some case initializing in constructor makes sense. class String { char[] arr/*=char [20]*/; //Here initializing char[] over here will not make sense. String() { this.arr=new char[0]; } String(char[] arr) { this.arr=arr; } } So depending...
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C/C++中的段错误(Segmentation fault) - C/C++ - 清泛网 - 专注C/C++及内核技术

...的按照%s输出或存放起来,如: #include <stdio.h> #include <string.h> int main(){ char c='c'; int i=10; char buf[100]; printf("%s", c); //试图把char型按照字符串格式输出,这里的字符会解释成整数, //再解...
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Regex doesn't work in String.matches()

...matcher: Pattern p = Pattern.compile("[a-z]"); Matcher m = p.matcher(inputstring); if (m.find()) // match If what you want is indeed to see if an input only has lowercase letters, you can use .matches(), but you need to match one or more characters: append a + to your character class, as in [...
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How to make a website secured with https

...d (here is a good intro: http://www.owasp.org/index.php/Secure_Coding_Principles ), otherwise all you need is a correctly set up SSL certificate. Is SSL and https one and the same.. Pretty much, yes. Do I need to apply with someone to get some license or something. You can buy an SSL c...
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What's the opposite of chr() in Ruby?

... If String#ord didn't exist in 1.9, it does in 2.0: "A".ord #=&gt; 65 share | improve this answer | f...
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How to change proxy settings in Android (especially in Chrome) [closed]

... to set proxy settings in Android (especially in Chrome)? I have to change IP on Android during the testing. Or there is some soft which can help me to solve this issue... ...
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ORACLE 启动提示 内存不足 OUTOF MEMORY - 数据库(内核) - 清泛网 - 专注C/C++及内核技术

...el.shmmni = 4096 kernel.sem = 250 32000 100 128 fs.file-max = 65536 net.ipv4.ip_local_port_range = 1024 65000 net.core.rmem_default=262144 net.core.rmem_max=262144 net.core.wmem_default=262144 net.core.wmem_max=262144 在ORACEL 用户下 输入 su - root 敲入密码 输入 gedi...
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Windows 10 VPN 如何去掉默认远程网关 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...需要用到新的VPN,PPTP建立完成后,发现PPTP虚拟网卡的TCP IP V4无法编辑,也就无法去掉默认网关功能。使...升级Windows 10一段时间了,突然需要用到新的VPN,PPTP建立完成后,发现PPTP虚拟网卡的TCP/IP V4无法编辑,也就无法去掉默认...