Recent questions tagged Language

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language agnostic - Tournament bracket placement algorithm

Given a list of opponent seeds (for example seeds 1 to 16), I'm trying to write an algorithm that will result ... 2 only meet up in the final. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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language agnostic - 3 dimensional bin packing algorithms

I'm faced with a 3 dimensional bin packing problem and am currently conducting some preliminary research as ... conduct some experiments with? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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language agnostic - Hash Code and Checksum - what's the difference?

My understanding is that a hash code and checksum are similar things - a numeric value, computed for a ... between hash codes and checksums? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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language agnostic - How do you know when to use fold-left and when to use fold-right?

I'm aware that fold-left produces left-leaning trees and fold-right produces right-leaning trees, but when I reach ... . So... any tips? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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language lawyer - Initialization vs Assignment in C

My instructor recently told that array initialization in C happens in two ways, namely: Manually like int a[5 ... qualify as an initializer? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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750 views

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language agnostic - Most efficient implementation of a large number class

When doing calculations on very large numbers where integral data types such as double or int64 falls short, a separate ... how best to do this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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language features - Python intern for non-strings

Why is Python's intern built-in only for strings? It should be possible to extend intern to classes that are hashable and comparable, right? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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language agnostic - What are "magic numbers" in computer programming?

When people talk about the use of "magic numbers" in computer programming, what do they mean? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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language agnostic - In what situations is octal base used?

I've seen binary and hex used quite often but never octal. Yet octal has it's own convention for being used in ... it merely a matter of taste? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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language lawyer - Is int main() { } (without "void") valid and portable in ISO C?

The C standard specifies two forms of definition for main for a hosted implementation: int main(void) { /* ... */ } ... int main() in ISO C.) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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language features - C# method call with parameter name and colon

I've begun to notice at times when I'm making method calls in C# that the names of the parameters for the method ... what is it to be used for. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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411 views

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language agnostic - Algorithm for permutations of operators and operands

I came across this question on an interview website - We are given 4 numbers say n1, n2, n3, n4. ... better solution using binary search trees. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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595 views

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language agnostic - Is bit shifting O(1) or O(n)?

Are shift operations O(1) or O(n) ? Does it make sense that computers generally require more operations to ... hardware is an appropriate tag.. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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659 views

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language agnostic - Is bit shifting O(1) or O(n)?

Are shift operations O(1) or O(n) ? Does it make sense that computers generally require more operations to ... hardware is an appropriate tag.. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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592 views

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language agnostic - Find all complete sub-graphs within a graph

Is there a known algorithm or method to find all complete sub-graphs within a graph? I have an undirected, ... an existing algorithm for this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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592 views

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language agnostic - The type system in Scala is Turing complete. Proof? Example? Benefits?

There are claims that Scala's type system is Turing complete. My questions are: Is there a formal proof for ... and type systems in general. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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485 views

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language agnostic - Algorithm to find the most common substrings in a string

Is there any algorithm that can be used to find the most common phrases (or substrings) in a string? For ... from most common to least common? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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562 views

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language agnostic - Purity vs Referential transparency

The terms do appear to be defined differently, but I've always thought of one implying the other; I ... demonstrates it would be appreciated. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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627 views

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language agnostic - How to name variables

What rules do you use to name your variables? Where are single letter vars allowed? How much info do you put in ... and "bar" rather than FUBAR See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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453 views

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language agnostic - What is differential execution?

I stumbled upon a Stack Overflow question, How does differential execution work?, which has a VERY long and detailed ... is. What is it really? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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480 views

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language agnostic - ICalendar and event updates not working in Outlook

I'm generating ICalendar (.ics) files. Using the UID and SEQUENCE fields I can update existing events in Google ... for Outlook ? Thanks Tom See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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456 views

1 answer

language agnostic - Is "Out Of Memory" A Recoverable Error?

I've been programming a long time, and the programs I see, when they run out of memory, attempt to clean ... for making it a recoverable error? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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542 views

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language agnostic - How are mutexes implemented?

Are some implementations better than others for specific applications? Is there anything to earn by rolling out your own? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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460 views

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language agnostic - Can you explain the Context design pattern?

I've started to read about the Context design pattern. Here's what I understood from the text : you have a map ... parameters Did I "get" it? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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450 views

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language agnostic - What algorithm to use to determine minimum number of actions required to get the system to "Zero" state?

This is kind of more generic question, isn't language-specific. More about idea and algorithm to use. ... as little transactions as possible? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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481 views

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language agnostic - What are some algorithms for comparing how similar two strings are?

I need to compare strings to decide whether they represent the same thing. This relates to case titles entered by ... by way of some heuristic? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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431 views

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language agnostic - Why is it recommended to have empty line in the end of a source file?

Some code style tools recommend this and I remember seeing some unix command line tools warning about missing empty ... an extra empty line? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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426 views

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language design - Why doesn't Python have a sign function?

I can't understand why Python doesn't have a sign function. It has an abs builtin (which I consider sign's ... be so much useful than sign? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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