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Beginners - March 2022 (Page 2)

There is a group of n people indexed by positive integers from 1 to n forming a network of friendship. Friendship of x and y is denoted by a pair(x,y), which...

[2 replies] Last: How about vis = true; and vis = false; (by Pen72)

by TriniRedMan

Need Help with Assignment. Now sure how to start

This assignment requires you to maintain ratings for products sold by a company. Each product sold is stored in an array. A rating for a product consists of ...

[3 replies] Last: You're given a lot of the data and function declarations already. Cop... (by dhayden)

by PhysicsIsFun

When is memory allocated for a vector?

Greetings, I have a short question. If I simply declare a std::vector of N doubles, i.e. std::vector <double> (N); , when will the memory of N d...

[5 replies] Last: It's interesting to consider what happens when you add a bunch of valu... (by dhayden)

by impetus

issues with dat file

solved

[14 replies] Last: Someone burned a bridge too far for us to reply. (by deleted account xyzzy)

by gust3lis

Why does it break out of the loop?

Why does it break out of the for loop if I write a number that isn't equal to either 1, 2 or 3 (for example 4)? I understand why it breaks out of the loop when ...

[4 replies] Last: Thank you very much everyone! I will definitely read more about the co... (by gust3lis)

by BigNibs

keeps sending out a random number

please help also i cant use global varables //Nico Kalin OConnell #include <iostream> #include <iomanip> using namespace std; int validate(int); int main() {...

[6 replies] Last: There are three ways to pass a variable into a function, two inherited... (by deleted account xyzzy)

by Freshman236784

When I enter a char the program goes infinitiley

I tried putting the cin.fail() incase so that I can stop the loop and let the user enter a value again but then its infinite loop void strassenMultiplicati...

[6 replies] Last: @freshman236784, I hope you know that in genuine (and worthwhile) Stra... (by lastchance)

by beginnerzzzzz

Template

There was no detected errors on the code but there was still undefined reference problems: MAIN.cpp:(.text+0x64): undefined reference to `listsavitch::operat...

[5 replies] Last: #include <iostream> namespace listsavitch { template<class Item... (by seeplus)

by jaffe15

Unique pointer assignment operator

Just started learning about smart pointers and my professor uses the assignmet operator like this in the slides. unique_ptr<double> p{}; p = new double...

[3 replies] Last: See https://stackoverflow.com/questions/22571202/differences-between-s... (by seeplus)

by alfanjui

Native webrequests with WS2_32

I've been trying to create a back-end for a RSS Client I'm working on. I took a snippet of code for the basic architecture of the code (besides the code is also...

[8 replies] Last: I can imagine. I once built a parser that recognized spaces between in... (by alfanjui)

by bydrachen

Counting unicode characters in an array? (1,2)

How can I count all characters in an array with Unicode characters? strlen() gives more and isprint() gives less value. I can't find the right one. In the code,...

[23 replies] Last: Thanks for your help. I learned a lot. (by bydrachen)

by Mae4ashy

Deque-Implementation push-front

Hello fellow programmers, here I am again with another question. I'm currently trying to implement a class structure for a Deque with the two functions pus...

[7 replies] Last: Thanks a lot @jonnin and @coder777 that helped a lot and i figured it ... (by Mae4ashy)

by Ceddy D

Error with global string in multiple functions...

I declare a global string and give it a value "ABC" in Function1. When I try to cout it in my main function, it gives error: Terminate called after throwing an...

[2 replies] Last: Code looks something like this... Well, if it looks like that then i... (by lastchance)

by seaminusminus

vector: entering weights

Write your question here. Program goal: User enters five numbers. Store the numbers in a vector of doubles. Output the vector's numbers on one line, each ...

[2 replies] Last: OP. L8 defines a vector that has 5 elements. L19 - pushes a new value... (by seeplus)

by jzilliam

Bulgarian Solitaire

Been trying to do a Bulgarian solitaire c++ program with a default n value of 45 and it's been a complete catastrophy (I'm new and learning about arrays so keep...

[4 replies] Last: Use std::sort(). See L77 above in lastchance's code. (by seeplus)

by jzilliam

Triangular Random Number Array

Hi, this is for a project I was working on and I've ran into some specific issues with random number and I kind of need help with it Background: It is supposed...

[11 replies] Last: Just plodding my way through step by step it ends up as the following ... (by againtry)

by SubZeroWins

Passing array to function

Question 1: I was able to use a range-based for loop (RBFL) in main() for my array, but when I passed it by value (which makes a copy) to a function in PassArr...

[13 replies] Last: https://stackoverflow.com/questions/5724171/passing-an-array-by-refere... (by againtry)

by naturtle

Converting 400 line VBA function to C++ (1,2)

I am trying to convert a 400 line VBA function to C++. I can't work out how to replicate this system in C++. I tried to convert each "gosub xxx" into a "void xx...

[23 replies] Last: I have decided to post a different module which exhibits the same desi... (by naturtle)

by vaultcroc

C++ Rational Class with Constructors

How am I supposed to implement a second constructor that converts "void" to rational (where input == 1)? I am a beginner programmer working on an assignment for...

[8 replies] Last: As a C++ solution using operator overloading, consider: #include <i... (by seeplus)

by seaminusminus

adjust list by normalizing

For this program I need to alter the values in a vector by dividing all of them by the max value. The input will start with the number of elements in the vector...

[3 replies] Last: #include <iostream> #include <iomanip> #include <vector> int main()... (by seeplus)

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