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Why does Java's Arrays.sort method use two different sorting algorithms for different types?
Java 6's Arrays.sort method uses Quicksort for arrays of primitives and merge sort for arrays of objects. I believe that most of time Quicksort is faster than merge sort and costs less memory. My experiments support that, although both algorithms are O(n log(n)). So why are different algorithms us...
Python csv string to array
Anyone know of a simple library or function to parse a csv encoded string and turn it into an array or dictionary?
10 Answe...
Equation (expression) parser with precedence?
I've developed an equation parser using a simple stack algorithm that will handle binary (+, -, |, &, *, /, etc) operators, unary (!) operators, and parenthesis.
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Fast way to discover the row count of a table in PostgreSQL
I need to know the number of rows in a table to calculate a percentage. If the total count is greater than some predefined constant, I will use the constant value. Otherwise, I will use the actual number of rows.
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php Replacing multiple spaces with a single space [duplicate]
I'm trying to replace multiple spaces with a single space. When I use ereg_replace , I get an error about it being deprecated.
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What are the most common font-sizes for H1-H6 tags [closed]
I've always been unsure of where to start as a general best practice baseline. Yes, I know it depends on your design, but what's most common?
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Remove duplicate entries using a Bash script [duplicate]
I want to remove duplicate entries from a text file, e.g:
4 Answers
4
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Negative list index? [duplicate]
I'm trying to understand the following piece of code:
2 Answers
2
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C++形参与实参的区别（实例解析） - C/C++ - 清泛网 - 专注C/C++及内核技术
...而实参中的值不会变化。
参考如下示例：
void Exchg1(int x, int y)
{
int tmp;
tmp=x;
x=y;
y=tmp;
printf("Exchg1:x=%d,y=%d\n",x,y);
}
void Exchg2(int &x, int &y)
{
int tmp;
tmp=x;
x=y;
y=tmp;
printf("Exchg2:x=%d,y=%d\n",x,y);
}
void Exchg3(int *x, int *y...
C++11 tuple 这一篇就够了 - C/C++ - 清泛网 - 专注C/C++及内核技术
...元素。通过下面这段程序来认识这两个函数的用法：
#include <iostream>
#include <tuple>
#include <functional>
int main()
{
auto t1 = std::make_tuple(10, "Test", 3.14);
std::cout << "The value of t1 is "
<< "(" << std::get<0>(t1) << ", " << std::ge...