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by memepapa
Need advice - Kadane's algorithm vs Recursion method
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| My Question - how should I learn more effectively? 1) just learn the most effective/simpler way of solving a code challenge? or 2) study all the various way... |
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Jan 28, 2022 at 1:17am
[6 replies] Last: thanks Jonin, well written and your explanation is helping me progress... (by memepapa)
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by memepapa
error: no type named 'cout' in namespace 'std'
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| I must have introduced some error that I can't pinpoint been writing using std::cout; instead of using namespace; but somehow i can't compile this and I k... |
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Jan 27, 2022 at 3:14pm
[11 replies] Last: thanks for expanding on this discussion, I'm learning from your exchan... (by memepapa)
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by limwn
How to search in struct in c?
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| Hi, I learned struct recently, however, I don't know how to search something in struct. Here's my attempt. I actually want to search the performer's name, and... |
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Jan 27, 2022 at 2:41pm
[2 replies] Last: exact string searching is painful to the user. the caps/lower letters... (by jonnin)
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| Find element in priority queue |
| I was just wondering...How do you find an element in a priority queue if you only know its value with a time complexity of O(1)? Not wanting to bother anyone...... |
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Jan 27, 2022 at 6:55am
[4 replies] Last: @seeplus It's just a problem on our online judge which I wanted to sol... (by Highground7490)
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| How to combine/sort text from an email and a .txt doc |
| Hello. For part of my job, I receive emails with rows of numbers (PM's) that look like this: 35287385 35287387 35287389 Usually there's ... |
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Jan 27, 2022 at 6:33am
[11 replies] Last: Here's my best progress so far #include <iostream> //#include <strin... (by the other jorge)
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by alexas
Advice for data container / structure
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| Hello I have some sort of branched data structure, see the image: https://ibb.co/TPMMfYb Basically every branch is the std::vector with set of coordinates ... |
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Jan 26, 2022 at 8:03pm
[14 replies] Last: @kbw: without further information, I think your first post is the best... (by newbieg)
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by ragnarokas
Split 3D into 1D vector
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| If I have a 3D cube of a given dimension, say 50x50x50, and I want to split it into smaller cubes of 5x5x5, i.e. splitting it by 10 at each edge, how can I appr... |
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Jan 26, 2022 at 10:44am
[2 replies] Last: Thank you very much (by ragnarokas)
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by allanbang
Is this the correct way to get an "user" directory
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| I'm still new at VC++ and wondering if this is the best way to get the current user directory in windows? char* userpath = nullptr; size_t sz = 0; std:... |
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Jan 26, 2022 at 9:42am
[6 replies] Last: Have a look at SHGetKnownFolder https://docs.microsoft.com/en-us/windo... (by seeplus)
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by beethekid
How to clear the input stream when given two inputs
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| When I enter 2 letters (such as b c) as the coordinates to check if the program outputs an error message, for some reason, it outputs two error messages instead... |
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Jan 26, 2022 at 4:11am
[1 reply] : #include <iostream> #include <utility> #include <string> #include <re... (by JLBorges)
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by Hcarr2
assigning variables
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| "If the input is: 611408 Then, Leo would have eaten 6 pounds of meat and 11 bones. Una would have eaten 4 pounds of meat and 8 bones." How do I make a progr... |
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Jan 25, 2022 at 10:30am
[5 replies] Last: #include <iostream> #include <string> using namespace std; int main(... (by lastchance)
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by memepapa
unordered_set<int> s( argument1, argument2 );
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| I'm trying to find more documentation related to this code unordered_set<int> s(nums.begin(),nums.end()); but the books i'v been studying, such as Progra... |
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Jan 25, 2022 at 9:46am
[2 replies] Last: s will contain the unique elements added from nums. If the size of s i... (by seeplus)
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by pilot1909
File write problem
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| I am not using any "/n" or "endl" then also my file stores the data every time in a newline. I don't know why. Can anyone explain! #include"header... |
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Jan 25, 2022 at 6:28am
[2 replies] Last: THANKYOU @salem c (by pilot1909)
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by Typehello
How to convert this txt file to an table output
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| I have a "New.txt" file with this data in it : userchoice_for_vehicle,vehicle_No,manfacture,in_time 1,1122,BMW,Mon Jan 17 11:50:00 2022 2,2233,Honda,Mon Jan 1... |
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Jan 24, 2022 at 5:38pm
[9 replies] Last: As an extension, this will read the file, display the data and then re... (by seeplus)
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by rradeba
Execute section of code only once
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| I am attaching a toggle switch to an servo motor. I want the servo to rotate from 0 to 90 and back to 0 only once when the toggle is switched on. Right now the ... |
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Jan 24, 2022 at 4:46am
[11 replies] Last: A toggle switch turns power on or off and does not automatically retur... (by againtry)
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by testshowlog
when use object replace smart pointer as member in class
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| such as the below code, EmbedderEngine has some members, what question I asked is when using a raw object as a member and when using a smart pointer as a member... |
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Jan 24, 2022 at 3:30am
[1 reply] : > using a raw object as a member and when using a smart pointer as a m... (by JLBorges)
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by Typehello
Time display format
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| I want my time to print only in hh:mm:ss format ... I don't want date and year #include<iostream> #include <ctime> using namespace std; int main() { ... |
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Jan 23, 2022 at 4:38pm
[4 replies] Last: The format returned from ctime() is fixed (www mmm dd hh:mm:ss yyyy). ... (by seeplus)
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by Drago888
C++ 20 full features
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| Dear experts, I will like to inquire about anyone having any idea when will the full features of C++ 20 be implemented in GCC and/or G++. I am using the date ... |
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Jan 23, 2022 at 1:05pm
[16 replies] Last: There are more BB Code tags usable here, not just code tags. See 2nd ... (by deleted account xyzzy)
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by EthanRDMdev
Can't stop my character to fly around when jumping
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| Hello ! I'm creating a game as a project for my Bachelor's Degree using the SDL lib and a simple implementation of an ECS I'm also making. The game will be a s... |
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Jan 23, 2022 at 10:52am
[9 replies] Last: Simply, there are 3 basic equations: v = u + at s = ut + (1/2)a(t^2) ... (by seeplus)
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by mencecpp
How to use a non-const int to assign array size?
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| This is purely a conceptual question. I am aware I can use dynamic containers like std::vector, but I want to know if this is possible. Compiler is c++14. I... |
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Jan 22, 2022 at 10:10pm
[10 replies] Last: The reason I want to stick to statically sized arrays is because they... (by mbozzi)
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by memepapa
main within class?
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| Was looking for supplementary video tutorials to understand recursion and this is one that I couldn't understand 1) void main() within a class? how does tha... |
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Jan 22, 2022 at 4:59pm
[5 replies] Last: Learn C++ on "Recursion": https://www.learncpp.com/cpp-tutorial/recur... (by deleted account xyzzy)
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