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What is a plain English explanation of “Big O” notation?

... example of Big-O I can think of is doing arithmetic. Take two numbers (123456 and 789012). The basic arithmetic operations we learned in school were: addition; subtraction; multiplication; and division. Each of these is an operation or a problem. A method of solving these is called an algori...
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What is the Java string pool and how is “s” different from new String(“s”)? [duplicate]

... 153 The string pool is the JVM's particular implementation of the concept of string interning: I...
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Adding a guideline to the editor in Visual Studio

...e columns by listing more than one number after the color specifier: RGB(230,230,230), 4, 80 Puts a white line at column 4 and column 80. This should be the value of a string value Guides in "Text Editor" key (see bellow). Be sure to pick a line color that will be visisble on your background. Th...
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What do I use for a max-heap implementation in Python?

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How can I set the default timezone in node.js?

... 139 According to this google group thread, you can set the TZ environment variable before calling a...
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Match everything except for specified strings

... Wayne ConradWayne Conrad 85.6k1919 gold badges143143 silver badges180180 bronze badges add a comment ...
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What is a regular expression for a MAC Address?

... answered Nov 23 '10 at 20:22 netcodernetcoder 60k1616 gold badges116116 silver badges139139 bronze badges ...
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Java rounding up to an int using Math.ceil

Why does it still return 4? 157/32 = 4.90625 , I need to round up, I've looked around and this seems to be the right method. ...
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What is the best way to conditionally apply attributes in AngularJS?

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String vs. StringBuilder

... 236 Yes, the performance difference is significant. See the KB article "How to improve string conc...