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Beginners - June 2020 (Page 5)

hello community, I need to read the elements from file.txt: number, string what is the most performing way, even if there are thousands of lines? I curr...

[6 replies] Last: i change my read file function with only one while() bool hashtable... (by rock33)

by arczi w

Program to check whether a field is private

Is it possible to check in a program whether a given variable in a class in some other program is private or not by, for instance, using try and catch ?...

[7 replies] Last: Compilers are not the only programs that read source code. There is, ... (by keskiverto)

by Bohicaman1

#include Statement not finding a correct path

Even though I copied the complete path and pasted it in the #include statement, building the file fails with: fatal error C1083: Cannot open include file: 'open...

[4 replies] Last: Thanks! Workin on it! (by Bohicaman1)

by Mif

How to set custom cursor overall in my SDI ?

Hi .. any help how to set my custom cursor over the entire project ? I have lots of static controls buttons and widows... and i just want to use overall the sam...

[1 reply] : In WM_SETCURSOR you can use SetCursor(...). See: https://docs.microso... (by coder777)

by rock33

Why this list print only one element?

Hi Community, i make a disjointset and when i make union, i push back in an list for after print all elements, qhy no print all element, but only last insert? ...

[10 replies] Last: I solved, we were missing endl; at the end of the cout (by rock33)

by lost110

Error not all control paths return a value

Hye! I am trying to visualize 3 data structures. It's giving an error C4715 "Bst search, not all control paths return a value" . int Search(int v, ...

[2 replies] Last: Hello lost110, It has been my experience that the C4715 has been a wa... (by Handy Andy)

by Mehmetsimsek

Hey please answer this question

To model the volume of a room, develop a structure called Volume, which uses three variables of the Distance type. Assign a size to a variable of type Volume a...

[2 replies] Last: cout "enter width/height/length and stuff" cin >> x >> y >> z; v = x*y... (by jonnin)

by ChesterPlus

Infinite Loop Bug

When I enter a character or other symbol into this section of my code, it infinitely loops. When I put a number value into it, the error and re-input loop wo...

[3 replies] Last: If you try to extract a number from cin and the next character isn't a... (by dhayden)

by cowolter

std::thread vs std::jthread

Can someone involved with the committee please explain to me in plain English why we have two classes and not one with both behaviors (start/cancel/stop vs not)...

[1 reply] : Repost bot - https://www.reddit.com/r/cpp/comments/h9lkam/stdthread_vs... (by salem c)

by John3682

explanation

guys can someone explain to me whats this and what does it do ? int x=10; int *pointer = &x; cout << &*&*pPointer << endl; <=== ??????...

[2 replies] Last: ty for helping ; ) (by John3682)

by GonlyG

inputting into double array with set size is looping forever

I have a line that says how big two arrays should be and to input x1 and y1 coordinates but it keeps looping forever... //connect dots to make triangles ...

[1 reply] : int triangles; double x ; double y ; cin>>triangles; ... (by salem c)

by Samuelyeboah41

C++ DATA STRUCTURES

HOW DO I PERFORM AN ASYMPTOTIC COMPLEXITY ANALYSIS FOR THIS ALGORITHM . #include <iostream> int main() { std::cout << "Enter 10 numbers: "; ...

[2 replies] Last: one loop O(n) I think you meant. But these kind of generalizations a... (by jonnin)

by iamkairos

Receiving a return of what looks like an address when trying to sort an array of a structure

I have created a program that reads a text file and stores into an array of a structure. For now I only have it set up to read entering a choice of 2 so as to t...

[13 replies] Last: If you test success of only the first field of a record, then you don'... (by keskiverto)

by donovan68

Unable to open file include: 'android / api-level.h': in Visual Studio Code 2017

Please help me I tried to compile this source code in C ISO Std using in the include header <sys/stat.h> : #include <stdio.h> #include <unistd.h> #inc...

[1 reply] : Hello donovan68, I am not sure about your installation of VS, but my ... (by Handy Andy)

by iampenguintm

Comparison and Swaps Counter for Quicksort only Outputting 0 no matter the data size or list sorting

Im currently trying to implement a c++ program which compares the number of swaps and comparisons in a variety of different sorting methods. The program appears...

[2 replies] Last: Indeed. In the example: first = a last = a + 8 (first - last) = a - (a... (by keskiverto)

by Programmingaddict

While loop won't end

I've tried 3 different ways to end the loop and none have worked. It just scrolls. #include <iostream> using namespace std; bool compute(int base, in...

[6 replies] Last: Thank you so much (by Programmingaddict)

by devious dm

Generate Random Objects of Varying Classes

Hi, I'm just getting my feet wet by trying to make my own console game. The goal is to play as a fighter and kill monsters to level up. The issue I'm having ...

[7 replies] Last: @MikeyBoy I wish I had understood that a few days ago. After a lot of ... (by devious dm)

by hackermanGabe

Matrix in Code -> .txt file

I need to move g_tileState and g_shipPlacement into text files saveGameTileState.txt and saveGameShips.txt respectively. If you code wizards can debug the code ...

[3 replies] Last: You can just use stream extractors, like how std::cout and std::cin fu... (by poteto)

by momof4

trying to draw a circle with a number in it

For an assignment that I had to do a few months ago, they provided a circle with a number drawn in it for us to use. Now I'm trying to reuse that code for a per...

[7 replies] Last: Thanks guys, got it figured out! :) (by momof4)

by idknuttin

Can't figure out why this program works with a pointer array but not a normal array with large data.

I was trying to solve a problem on hackerrank and I finally got it after a couple of hints from the discussion but I am not sure about a couple of things and wh...

[3 replies] Last: I'm not sure what you mean by "the second snippet shouldn't even com... (by jlb)

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