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recursion versus iteration

...ed incorrectly that's slower. On top of that, modern compilers are good at converting some recursions to loops without even asking. And if it is always possible to convert an recursion into a for loop is there a rule of thumb way to do it? Write iterative programs for algorithms best understoo...
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Swift - How to convert String to Double

...g to write a BMI program in swift language. And I got this problem: how to convert a String to a Double? 29 Answers ...
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How to use GROUP BY to concatenate strings in SQL Server?

... I ran into a couple of problems when I tried converting Kevin Fairchild's suggestion to work with strings containing spaces and special XML characters (&, <, >) which were encoded. The final version of my code (which doesn't answer the original question but m...
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How to convert/parse from String to char in java?

... If your string contains exactly one character the simplest way to convert it to a character is probably to call the charAt method: char c = s.charAt(0); share | improve this answer ...
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Generate random int value from 3 to 6

... maximum value, it can be generated. SELECT @MIN+FLOOR((@MAX-@MIN+1)*RAND(CONVERT(VARBINARY,NEWID()))); --And then this T-SQL snippet generates an integer between minimum and maximum integer values. You can change and edit this code for your needs. ...
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Compare version numbers without using split function

...unt,m2.Count); for(int i=0; i<min;i++) { if(Convert.ToInt32(m1[i].Value)>Convert.ToInt32(m2[i].Value)) { return 1; } if(Convert.ToInt32(m1[i].Value)<Convert.ToInt32(m2[i].Value)) { re...
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Store boolean value in SQLite

...ad, Boolean values are stored as integers 0 (false) and 1 (true). You can convert boolean to int in this way: int flag = (boolValue)? 1 : 0; You can convert int back to boolean as follows: // Select COLUMN_NAME values from db. // This will be integer value, you can convert this int value ba...
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Safe integer parsing in Ruby

I have a string, say '123' , and I want to convert it to the integer 123 . 8 Answers ...
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What breaking changes are introduced in C++11?

...can be one of A sequence of chars has been accumulated in stage 2 that is converted (according to the rules of scanf) to a value of the type of val. This value is stored in val and ios_base::goodbit is stored in err. The sequence of chars accumulated in stage 2 would have caused scanf to report an ...
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How to pass a URI to an intent?

...string intent.putExtra("imageUri", imageUri.toString()); and then just convert the string back to uri like this Uri myUri = Uri.parse(extras.getString("imageUri")); share | improve this answer...