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How to implement a queue using two stacks?

...ions, so it's a perfectly linear O(n) algorithm. – LP_ Jan 17 '14 at 11:56 1 @LP_ it takes quadra...
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Select columns from result set of stored procedure

...ame as temp tables? Or is it strictly in memory? – d-_-b Mar 4 '12 at 23:37 This was interesting: sqlnerd.blogspot.com...
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Templated check for the existence of a class member function?

...truct Generic {}; // SFINAE test template <typename T> class has_helloworld { typedef char one; struct two { char x[2]; }; template <typename C> static one test( decltype(&C::helloworld) ) ; template <typename C> static two test(...); public: enum...
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Finding out whether a string is numeric or not

...rsion: Test in playground. import UIKit import Foundation func validate(_ str: String, pattern: String) -> Bool { if let range = str.range(of: pattern, options: .regularExpression) { let result = str.substring(with: range) print(result) return true } return ...
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Is there a 'box-shadow-color' property?

...ssor to do your skinning. With Sass you can do something similar to this: _theme1.scss: $theme-primary-color: #a00; $theme-secondary-color: #d00; // etc. _theme2.scss: $theme-primary-color: #666; $theme-secondary-color: #ccc; // etc. styles.scss: // import whichever theme you want to use @im...
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Why is there extra padding at the top of my UITableView with style UITableViewStyleGrouped in iOS7

...h are misaligned (first cell with have a Y origin of 0.01, the next of cell_height+0.01, etc) so the contents of those cells will be misaligned. (Turn on Debug > Color Misaligned Images in the simulator to see this for yourself.) You don't want to do that. – Simon Whitaker ...
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Is there a portable way to print a message from the C preprocessor?

...pragma message" and "warning" somehow? For example, something like: #ifdef _LINUX #define #preprocmsg "#warning" else #define #preprocmsg "#pragma message"... I'll have to try that but instinct tells me the answer is no. – Bryan Sep 30 '10 at 0:41 ...
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How to access data/data folder in Android device?

...n your command prompt Change directory to E:\Android\adt-bundle-windows-x86_64-20140702\adt-bundle-windows-x86_64-20140702\sdk\platform-tools Enter below commands adb -d shell run-as com.your.packagename cat databases/database.db > /sdcard/database.db Change directory to cd /sdcard to make sure d...
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How to convert SQL Query result to PANDAS Data Structure?

...r. 2015 As noted below, pandas now uses SQLAlchemy to both read from (read_sql) and insert into (to_sql) a database. The following should work import pandas as pd df = pd.read_sql(sql, cnxn) Previous answer: Via mikebmassey from a similar question import pyodbc import pandas.io.sql as psql cn...
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How do I trap ctrl-c (SIGINT) in a C# console app

...complete solution below. works with kill as well – JJ_Coder4Hire Apr 10 '14 at 18:53 1 I have fou...