Skip to main content
Software Engineering

Questions tagged [array]

Ask Question

An array is a systematic arrangement of similar objects, usually in rows and columns.

223 questions
Newest Active Bountied Unanswered
Filter by
Sorted by
Tagged with
16 votes
10 answers
5k views

I have noticed in documentation, looking at open-source code bases, and just a general sense in the industry that C# developers largely prefer to use List<> or IEnumerable<> over simple ...
K0D4's user avatar
  • 423
0 votes
1 answer
242 views

I'm programming an embedded system that has a number of user configurable parameters, which are stored in flash memory. I have to store a default value for each parameter as well as the user settings. ...
jusaca's user avatar
  • 175
27 votes
6 answers
28k views

I have been told that Rust is both safer and faster than C++. If that is true, how can that be even possible? I mean, a safer language means that more code is written inside the compiler, right? More ...
euraad's user avatar
  • 403
4 votes
4 answers
1k views

I hope this isn't too off-topic/opinion-based, I'm new here. I want to pass three elements of the same type into a function. The three elements are unique cards of a deck of cards, so they're not ...
dve.exe's user avatar
  • 59
7 votes
2 answers
4k views

In C you cannot assign arrays directly. int array[4] = {1, 2, 3, 4}; int array_prime[4] = array; // Error At first I thought this might because the C facilities were supposed to be implementable with ...
CPlus's user avatar
  • 1,219
4 votes
2 answers
2k views

A seemingly basic question here. Is there anything you can do with multidimensional arrays that you can't do with nested arrays? Many languages have been designed with both facilities and syntactical ...
Steve's user avatar
  • 12.7k
0 votes
0 answers
166 views

I have a set of array, containing a large number of objects (products), which has lately grown so large, searching in it takes about a minute, which is considered too long, since one search is ...
kry's user avatar
  • 101
2 votes
1 answer
2k views

This occurred to me when looking at stencil computations in numpy. This python library compiles compute-intensive components, so I believe that it's a valid example. Here making selections on an array ...
Daniel Krajnik's user avatar
  • 131
4 votes
2 answers
1k views

I've been finding that for a lot of code I've been writing recently, it naively might look like this: Array approach: const options = [ { id: 'red', label: 'Red', data: '#f00' ...
dwjohnston's user avatar
  • 2,769
0 votes
1 answer
136 views

I have a function which has discrete time step ,discrete length from origin . These two give height of the function. For example at time 1.2sec , and length 5.5cm from origin height is 10cm. The step ...
Mokka Naresh's user avatar
  • 19
8 votes
2 answers
7k views

Sorting is generally used to solve problems where distance between elements matters. A sorted list/array has the convenient property that the smaller the difference between the indices of any two ...
TheEnvironmentalist's user avatar
  • 1,179
-2 votes
1 answer
129 views

When I was study lvalue i see that C expression can be lvalue if a subscript ([]) expression that does not evaluate to an array. (from https://docs.microsoft.com/en-us/cpp/c-language/l-value-and-r-...
Ulaş Sezgin's user avatar
  • 113
2 votes
2 answers
764 views

I'm trying to understand why sizeof(a)/sizeof(t) is inferior for getting the length of an array to sizeof(a)/sizeof(a[0]) if just as it's possible to have different types, my elements could also be of ...
Farah Kamal's user avatar
  • 41
1 vote
1 answer
515 views

I am currently writing a Python program that retrieves the pixels from two BMP files and finds the percent difference between them (without using the Pillow library for the purpose of learning). I can ...
8ask714's user avatar
  • 23
1 vote
3 answers
556 views

Array := {"title": "Book Title", "author": "John Doe"} Some people use the following terminology: title and author are keys. Book Title and John Doe are values. "title": "Book Title" and "author": "...
john c. j.'s user avatar
  • 501
1 vote
1 answer
69 views

I have an array of objects and I'm trying to see, through each request, whether or not a new member appeared in my collection. The way I currently do it is, I require each member of the collection to ...
coolpasta's user avatar
  • 657
1 vote
1 answer
677 views

I need to share some associative data between different parts of my application with two requirements: immutability (so read-only) safety against mispelling or unavailable index inside the data mixed ...
Sir_Faenor's user avatar
  • 111
1 vote
0 answers
43 views

I wasn't sure exactly how to word this question, but basically, I have a struct stNeuralLayers (for a neural network I'm playing around with) with fields that are matrices (such as a double[,] ...
Tara's user avatar
  • 151
2 votes
1 answer
2k views

for example, sometimes I need to define a hardcoded string with some variable parts, I often have trouble to choose the style: style 1 : reuse every characters when possible showMessage(num){ let ...
ocomfd's user avatar
  • 5,760
0 votes
1 answer
169 views

For example, I have a toggle button, which would show the current selected element, and would show next element when it is clicked, and it can loop back to first element. I have 2 ways to store the ...
ocomfd's user avatar
  • 5,760
3 votes
2 answers
141 views

For example, I have a for loop, which element 0 has additional function to run compared with other elements, my question is, should the additional function be: 1.place inside for loop for(int i=0;i&...
ocomfd's user avatar
  • 5,760
3 votes
1 answer
159 views

I'm developing an application which sends quotes to clients via email. Since quotes are obtained from various resources (per each client) they end up in a single array which is then used as a source ...
Jan Richter's user avatar
  • 201
1 vote
2 answers
178 views

If you have a linked-list, where the items are not necessarily close to each other in memory, wondering if it is (in general) better/worse/no difference to do the following. Say you want to iterate ...
Lance Pollard's user avatar
  • 2,787
4 votes
2 answers
6k views

I only know that index is faster but don't know why is it faster. Suppose I have an array int[] a = {2,3,6,7}. Then I will try to find the element at a[3] and the speed of this will be O(1). Why? How ...
Asif Mushtaq's user avatar
  • 151
1 vote
2 answers
665 views

I've been thinking about this over the past few weeks, and I've come up with no good arguments. My perspective is from Java, but if anyone has any language-specific cases outside of this language, I'...
ndm13's user avatar
  • 229

1
2 3 4 5