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Why do we check up to the square root of a prime number to determine if it is prime?
To test whether a number is prime or not, why do we have to test whether it is divisible only up to the square root of that number?
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How do I break a string over multiple lines?
In YAML, I have a string that's very long. I want to keep this within the 80-column (or so) view of my editor, so I'd like to break the string. What's the syntax for this?
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Determine a string's encoding in C#
Is there any way to determine a string's encoding in C#?
9 Answers
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O(nlogn) Algorithm - Find three evenly spaced ones within binary string
I had this question on an Algorithms test yesterday, and I can't figure out the answer. It is driving me absolutely crazy, because it was worth about 40 points. I figure that most of the class didn't solve it correctly, because I haven't come up with a solution in the past 24 hours.
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What would cause an algorithm to have O(log log n) complexity?
This earlier question addresses some of the factors that might cause an algorithm to have O(log n) complexity.
2 Answers
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Explode PHP string by new line
Simple, right? Well, this isn't working :-\
19 Answers
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Moving average or running mean
Is there a SciPy function or NumPy function or module for Python that calculates the running mean of a 1D array given a specific window?
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Best way to split string into lines
How do you split multi-line string into lines?
10 Answers
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Remove all line breaks from a long string of text
Basically, I'm asking the user to input a string of text into the console, but the string is very long and includes many line breaks. How would I take the user's string and delete all line breaks to make it a single line of text. My method for acquiring the string is very simple.
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How can I repeat a character in Bash?
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32 Answers
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