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std::vector performance regression when enabling C++11
...nteresting performance regression in a small C++ snippet, when I enable C++11:
1 Answer
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Converting a List to a comma separated string
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190
List<int> list = ...;
string.Join(",", list.Select(n => n.ToString()).ToArray())
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Efficiency of Java “Double Brace Initialization”?
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15 Answers
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Java 8 stream reverse order
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81
For the specific question of generating a reverse IntStream, try something like this:
static In...
Format date to MM/dd/yyyy in JavaScript [duplicate]
I have a dateformat like this '2010-10-11T00:00:00+05:30' . I have to format in to MM/dd/yyyy using JavaScript or jQuery . Anyone help me to do the same.
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How is this fibonacci-function memoized?
...is asked for again. If we define some list, xs=[0..] and later ask for its 100th element, xs!!99, the 100th slot in the list gets "fleshed out", holding the number 99 now, ready for next access.
That is what that trick, "going-through-a-list", is exploiting. In normal doubly-recursve Fibonacci def...
Random shuffling of an array
...{
public static void main(String args[])
{
int[] solutionArray = { 1, 2, 3, 4, 5, 6, 16, 15, 14, 13, 12, 11 };
shuffleArray(solutionArray);
for (int i = 0; i < solutionArray.length; i++)
{
System.out.print(solutionArray[i] + " ");
}
System.out.println();
}
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How to validate an email address in PHP
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10 Answers
10
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How do I remove a property from a JavaScript object?
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