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Has reCaptcha been cracked / hacked / OCR'd / defeated / broken? [closed]

... Killer's website is now taken down, apparently under legal pressure. See http://captcha.org/ for a complete overview of the topic. And yeah, OCR is not the best way to break a CAPTCHA protected site - there are many other better ways. ...
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What are the options for storing hierarchical data in a relational database? [closed]

...read about the new method and get a copy of the code at the following URL. http://www.sqlservercentral.com/articles/Hierarchy/94040/ I also developed a "pre-aggregated" hierarchy using similar methods. MLM'ers and people making bills of materials will be particularly interested in this article. ht...
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Difference between HEAD and master

...remote machine. There is a great little tutorial on git references here: http://people.gnome.org/~federico/news-2008-11.html#pushing-and-pulling-with-git-1 share | improve this answer | ...
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NSOperation vs Grand Central Dispatch

...work "into the background" with very little additional work) use GCD ref: https://cocoacasts.com/choosing-between-nsoperation-and-grand-central-dispatch/ http://iosinfopot.blogspot.in/2015/08/nsthread-vs-gcd-vs-nsoperationqueue.html http://nshipster.com/nsoperation/ ...
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How do I use vi keys in ipython under *nix?

...trc file: set editing-mode vi set keymap vi set convert-meta on Source: http://www.jukie.net/bart/blog/20040326082602 share | improve this answer | follow |...
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[A]System.Web.WebPages.Razor.Configuration.HostSection cannot be cast to… web.config issue

..." /> </sectionGroup> for more information on upgrading to MVC 5 http://www.asp.net/mvc/tutorials/mvc-5/how-to-upgrade-an-aspnet-mvc-4-and-web-api-project-to-aspnet-mvc-5-and-web-api-2 share | ...
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How to get VM arguments from inside of Java application?

...ething there to help you. The sun website has a bunch on the technology: http://java.sun.com/javase/6/docs/technotes/guides/management/mxbeans.html share | improve this answer | ...
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Effect of a Bitwise Operator on a Boolean in Java

... of boolean type. I'd say for any other case the results are not defined: http://java.sun.com/docs/books/jls/second_edition/html/expressions.doc.html#5228 share | improve this answer | ...
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What is causing ERROR: there is no unique constraint matching given keys for referenced table?

...table, so in your bar table you must have a unique (name) index. See also http://www.postgresql.org/docs/9.1/static/ddl-constraints.html#DDL-CONSTRAINTS-FK and specifically: Finally, we should mention that a foreign key must reference columns that either are a primary key or form a unique con...
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How to do date/time comparison

...intf("Lifespan is %+v", diff) The program outputs: Lifespan is 3h0m0s http://play.golang.org/p/bbxeTtd4L6 share | improve this answer | follow | ...