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Why do people say there is modulo bias when using a random number generator?

... Keep selecting a random is a good way to remove the bias. Update We could make the code fast if we search for an x in range divisible by n. // Assumptions // rand() in [0, RAND_MAX] // n in (0, RAND_MAX] int x; // Keep searc...
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How do I sort a vector of pairs based on the second element of the pair?

...),myComparison); Now you have to make the comparison based on the second selection so declare you "myComparison" as bool myComparison(const pair<int,int> &a,const pair<int,int> &b) { return a.second<b.second; } ...
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Excel “External table is not in the expected format.”

...e same problem. which as resolved using these steps: 1.) Click File 2.) Select "save as" 3.) Click on drop down (Save as type) 4.) Select Excel 97-2003 Workbook 5.) Click on Save button share | ...
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How to reset or change the MySQL root password?

...qld] skip-grant-tables sudo service mysql restart mysql -u root use mysql select * from mysql.user where user = 'root'; - Look at the top to determine whether the password column is called password or authentication_string UPDATE mysql.user set *password_field from above* = PASSWORD('your_new_passw...
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django test app error - Got an error creating the test database: permission denied to create databas

...@localhost; I originally tried to only GRANT CREATE... but then could not SELECT or DROP the created database. This essentially makes your user a superuser, so be careful. – mightypile Dec 31 '15 at 16:28 ...
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HTML text input allow only numeric input

...x, inputFilter) { ["input", "keydown", "keyup", "mousedown", "mouseup", "select", "contextmenu", "drop"].forEach(function(event) { textbox.addEventListener(event, function() { if (inputFilter(this.value)) { this.oldValue = this.value; this.oldSelectionStart = this.selecti...
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Font Awesome icon inside text input element

...e placeholder attribute will simply ignore it. UPDATE The before content selector selects the input: input[type="text"]:before. You should select the wrapper: .wrapper:before. See http://jsfiddle.net/allcaps/gA4rx/ . I also added the placeholder suggestion where the wrapper is redundant. .wrap...
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How can you make a custom keyboard in Android?

...) { case Keyboard.KEYCODE_DELETE: CharSequence selectedText = ic.getSelectedText(0); if (TextUtils.isEmpty(selectedText)) { // no selection, so delete previous character ic.deleteSurroundingText(1, 0); ...
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How to style dt and dd so they are on the same line?

... This behaves awkwardly when you select (double click) the first word in the <dd>. It also selects the text inside the <dt> unless there's whitespace (or an   if you're using htmlmin) between the <dt> and <dd>. ...
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What is the IntelliJ shortcut to create a local variable?

... Yep! This is the Introduce Variable refactoring. By default, select some text, and then hit Ctrl + Alt + V (for Mac: ⌘+⌥+V). If the expression is incomplete or invalid, IntelliJ will still make a good guess about what you meant and try to fix it for you. ...