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I need an algorithm to find all of the subsets of a set where the number of elements in a set is n. S= ... ://stackoverflow.com/questions/728972/finding-all-the-subsets-of-a-set...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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104 views

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java - Android Email EditText Validation

(This question already has answers here): question from:https://stackoverflow.com/questions/9355899/android-email-edittext-validation...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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174 views

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android - mapFragment.getMapAsync(this) - NullPointerException

I am using com.google.android.gms:play-services-maps:7.5.0 version of Google Maps ... https://stackoverflow.com/questions/30991087/mapfragment-getmapasyncthis-nullpointerexception...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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257 views

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postgresql - Remove array values in pgSQL

Is there a way to remove a value from an array in pgSQL? Or to be more precise, to pop the last ... from:https://stackoverflow.com/questions/2072776/remove-array-values-in-pgsql...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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visual studio debugging - ASP.NET MVC5/IIS Express unable to debug - Code Not Running

I start a VS2013 VB.Net MVC5 Web Application, set a breakpoint in HomeController About method and run "Start Debugging ... asp-net-mvc5-iis-express-unable-to-debug-code-not-running...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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419 views

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hardware - What's the coolest hack you've seen or done?

question from:https://stackoverflow.com/questions/192479/whats-the-coolest-hack-youve-seen-or-done...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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211 views

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multithreading - How to demonstrate Java instruction reordering problems?

With Java instruction reordering the execution order of the code is changed by the JVM at compile ... questions/52648800/how-to-demonstrate-java-instruction-reordering-problems...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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270 views

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Android studio shows sources from API of compileSdkVersion when debugging on device with older API

I am debugging with Android Studio (A.S) 1.0.2 with compileSdkVersion 21 set up in build.gradle. When ... -studio-shows-sources-from-api-of-compilesdkversion-when-debugging-on-dev...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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446 views

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git - .gitignore file for java eclipse project

I have java project that uses the Eclipse IDE. The Eclipse workspace is pointing to this directory: / ... .com/questions/18726217/gitignore-file-for-java-eclipse-project...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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294 views

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android - Animate selector/state transitions

I have a simple selector for my ListView <?xml version="1.0" encoding="utf-8"?> <selector ... from:https://stackoverflow.com/questions/9221535/animate-selector-state-transitions...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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181 views

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php - allow cross domain ajax requests

In my project , I need to allow others send ajax requests to my script . So external requests may come ... ://stackoverflow.com/questions/13388942/allow-cross-domain-ajax-requests...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java 7 - Does Android plan to support Java7?

(Closed.) This question is off-topic. It is not currently accepting answers. question from:https://stackoverflow.com/questions/8535164/does-android-plan-to-support-java7...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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html - 2D engines for JavaScript

(Closed). This question is opinion-based. It is not currently accepting answers. question from:https://stackoverflow.com/questions/10172191/2d-engines-for-javascript...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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872 views

1 answer

wcf - Fiddler not sniffing SOAP traffic from ASP.NET website

So far I've been successfully using fiddler to sniff web service traffic from both test fixtures, console apps ... /2783172/fiddler-not-sniffing-soap-traffic-from-asp-net-website...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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200 views

1 answer

c++ - Why does Windows 10 start extra threads in my program?

With Visual Studio 2015, in a new, empty C++ project, build the following for Console application: int main() { ... /34822072/why-does-windows-10-start-extra-threads-in-my-program...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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242 views

1 answer

datetime - Is Python's time.time() timezone specific?

Apologies for asking too basic question but I couldn't get it cleared after reading docs. It just ... stackoverflow.com/questions/11845803/is-pythons-time-time-timezone-specific...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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132 views

1 answer

javascript - Delta encoding for JSON objects

(Closed.) This question does not meet Stack Overflow guidelines. It is not currently accepting answers. ... /stackoverflow.com/questions/7326532/delta-encoding-for-json-objects...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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62 views

1 answer

java - Secure HTTP Post in Android

I have a pretty basic helper class that I'm using to do all my Http Get/Post stuff. I'm using ... from:https://stackoverflow.com/questions/2253061/secure-http-post-in-android...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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83 views

1 answer

c++ - Overloading multiple function objects by reference

In C++17, it is trivial to implement an overload(fs...) function that, given any number ... stackoverflow.com/questions/42987144/overloading-multiple-function-objects-by-reference...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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526 views

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objective c - iOS: Warning "attempt to present ViewController whose view is not in the window hierarchy"

I am getting following warning when I try to present a ActivityController on navigation controller, Attempt to present ... -present-viewcontroller-whose-view-is-not-in-the-window...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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152 views

1 answer

c++ - Significance of parentheses in decltype((c))?

I was reading this article on Wikipedia regarding C++11 Type Inference feature. There is an ... stackoverflow.com/questions/14115744/significance-of-parentheses-in-decltypec...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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102 views

1 answer

Design pattern : notification system

I'm working on a website that will use features of social networking (like facebook for example). ... ://stackoverflow.com/questions/1315991/design-pattern-notification-system...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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325 views

1 answer

Android Studio library "error: package does not exist"

I have created Android library as Android Studio module. Added as dependency to my root module. While coding ... /26422860/android-studio-library-error-package-does-not-exist...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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228 views

1 answer

python - IOError: [Errno 24] Too many open files:

I have a huge file that I am writing into approximately 450 files. I am getting error as too many ... stackoverflow.com/questions/18280612/ioerror-errno-24-too-many-open-files...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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debugging - How can I specify location of debug keystore for Android ant debug builds?

Is it possible to specify the location of a self created debug keystore when creating debug .apk's (<project- ... i-specify-location-of-debug-keystore-for-android-ant-debug-builds...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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265 views

1 answer

php - Is filter_var a good way to go?

Is filter_var any good for filtering data? What kind of bad data will it filter? I do use mysql_real_escape_string but I ... .com/questions/659197/is-filter-var-a-good-way-to-go...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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176 views

1 answer

c# - Strongly typed Guid as generic struct

I already make twice same bug in code like following: void Foo(Guid appId, Guid accountId, Guid ... stackoverflow.com/questions/53748675/strongly-typed-guid-as-generic-struct...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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120 views

1 answer

html - Default Javascript Character Encoding?

After some frantic Googling, I can't seem to find a conclusive answer to a simple question. I ... https://stackoverflow.com/questions/11141136/default-javascript-character-encoding...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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