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Read values into a shell variable from a pipe
I am trying to get bash to process data from stdin that gets piped into, but no luck. What I mean is none of the following work:
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Understanding Spliterator, Collector and Stream in Java 8
...am having trouble understanding the Stream interface in Java 8, especially where it has to do with the Spliterator and Collector interfaces. My problem is that I simply can't understand Spliterator and the Collector interfaces yet, and as a result, the Stream interface is still somewhat ...
Sum a list of numbers in Python
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Question 1: So you want (element 0 + element 1) / 2, (element 1 + element 2) / 2, ... etc.
We make two lists: one of every element except the first, and one of every element except the last. Then the averages we want are the averages of ea...
How to remove convexity defects in a Sudoku square?
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I have a solution that works, but you'll have to translate it to OpenCV yourself. It's written in Mathematica.
The first step is to adjust the brightness in the image, by dividing each pixel with the result of a closing operation:
src = ColorConvert[Import[...
combinations between two lists?
It’s been a while and I’m having trouble wrapping my head around a algorithm I’m try to make. Basically, I have two lists and want to get all the combinations of the two lists.
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Can we define implicit conversions of enums in c#?
...e following:
public sealed class AccountStatus
{
public static readonly AccountStatus Open = new AccountStatus(1);
public static readonly AccountStatus Closed = new AccountStatus(2);
public static readonly SortedList<byte, AccountStatus> Values = new SortedList<byte, AccountSt...
Read file line by line using ifstream in C++
...m infile("thefile.txt");
The two standard methods are:
Assume that every line consists of two numbers and read token by token:
int a, b;
while (infile >> a >> b)
{
// process pair (a,b)
}
Line-based parsing, using string streams:
#include <sstream>
#include <string>...
How to check if one of the following items is in a list?
I'm trying to find a short way to see if any of the following items is in a list, but my first attempt does not work. Besides writing a function to accomplish this, is the any short way to check if one of multiple items is in a list.
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Remove carriage return in Unix
What is the simplest way to remove all the carriage returns \r from a file in Unix?
20 Answers
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Java JUnit: The method X is ambiguous for type Y
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The method assertEquals(Object, Object) is ambiguous for the type ...
What this error means is that you're passing a double and and Double into a method that has two different signatures: assertEquals(Object, Object) and assertEquals(double, double) both of which could be called, thank...