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Write a function that returns the longest palindrome in a given string

I thought of a solution but it runs in O(n^2) time 22 Answers 22 ...
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Why is require_once so bad to use?

Everything I read about better PHP coding practices keeps saying don't use require_once because of speed. 14 Answers ...
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How to print matched regex pattern using awk?

Using awk , I need to find a word in a file that matches a regex pattern. 8 Answers ...
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How to access array elements in a Django template?

I am getting an array arr passed to my Django template. I want to access individual elements of the array in the array (e.g. arr[0] , arr[1] ) etc. instead of looping through the whole array. ...
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How do you generate dynamic (parameterized) unit tests in python?

I have some kind of test data and want to create a unit test for each item. My first idea was to do it like this: 25 Answer...
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How I can I lazily read multiple JSON values from a file/stream in Python?

I'd like to read multiple JSON objects from a file/stream in Python, one at a time. Unfortunately json.load() just .read() s until end-of-file; there doesn't seem to be any way to use it to read a single object or to lazily iterate over the objects. ...
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Array initializing in Scala

I'm new to Scala ,just started learning it today.I would like to know how to initialize an array in Scala. 6 Answers ...
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How to dynamically create CSS class in JavaScript and apply?

I need to create a CSS stylesheet class dynamically in JavaScript and assign it to some HTML elements like - div, table, span, tr, etc and to some controls like asp:Textbox, Dropdownlist and datalist. ...
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How do I convert a string to a double in Python?

I would like to know how to convert a string containing digits to a double. 3 Answers ...
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Large Numbers in Java

How would I go about doing calculations with extremely large numbers in Java? 6 Answers ...