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Beginners - March 2022 (Page 6)

loops: countdown until matching digits

Goal: Write a program that takes in an integer in the range 11-100 as input. The output is a countdown starting from the integer, and stopping when both output...

[3 replies] Last: thanks @thmm !! I think that was one of my main issues!! ---- Here's t... (by seaminusminus)

by bydrachen

Help with simple calculator (if - else)

The teacher wanted us to make a simple calculator. But he wants it as short as possible. Can I go shorter than these? Input: 3+5 Output: 3+5=8 is a must. ...

[8 replies] Last: good luck! I was trying to say that originally ... too short usually ... (by jonnin)

by Dantrew

Understand while loop and storing arrays.

Hi! First of all I'm new to programming, yeah thats why it's the beginners forum, and try to sort things out. I have taken a distance course so much of the help...

[5 replies] Last: Instead of having a bunch of if/else statements a switch reduces the n... (by deleted account xyzzy)

by DarkStar88

Inheritance, calling a children method from parent

Hello, I am new to the forums as recently started learning C++, and I am trying to wrap my head around C++ from a C# developer perspective. I am making a gam...

[8 replies] Last: depending on what you are doing, static (keyword) class variables alwa... (by jonnin)

by codinglexernewbie

how to delete a specific line from a txt file

I've stored data in a text file, but I've got a requirement if the input, say a is seen in the file already( I know how to do that), delete the line, how would ...

[4 replies] Last: I've stored data in a text file, but I've got a requirement if the ... (by dhayden)

by roaring90s

Saving structs to files

I have this struct and I wish to add info about an undefined no. of albums (meaning I couldn't have an int n where it'd just stop reading). This information wou...

[5 replies] Last: If you go with binary, I prefer the fixed size if you can nail down a ... (by jonnin)

by Spyrex

Own CMAKE library

Hey, I am relatively new to cpp. I programmed some classes I want to be able to build to a separate library I can use from another cpp project. This my dire...

[no replies]

by ColeMilla

New to file input/output, dont know where im going wrong.

Doing an assignment that merges two text files and i cant figure out why no text is being outputted to my merge file. Please give me a hint/pointer to what im d...

[3 replies] Last: It's easier to write the merge in two loops. The first for when neithe... (by DizzyDon)

by SubZeroWins

initializing static variable

I was first introduced to keyword static when going over singleton classes and then saw it again when trying to prevent a class from instantiating on the stack....

[1 reply] : The reason is that variables are normally only allowed be defined once... (by Peter87)

by whiteW0lf

Random Number Generator

I have this function to generate a random number seeded at the time of the computer, and I use this function several times with the same parameters. However, si...

[7 replies] Last: @ anup30 Do you like going backwards? It really helps to read the thr... (by Duthomhas)

by LeslieS

[solved]Calling a copy constructor using 'this'

I have my copy constructor defined like so: CardStack::CardStack(const CardStack &pCS) { foreach(Card c, pCS){ this->append(c); } } ...

[5 replies] Last: If you are talking about the tutorial here at CPlusPlus, yeah, it ain'... (by deleted account xyzzy)

by Ganado

watching

Answered in other thread: http://cplusplus.com/forum/beginner/282490/ [Well, I don't agree with whoever decided to be the judge, jury, and executioner here (un...

[1 reply] : Answered, and the OP was ejected by a large boot. (by deleted account xyzzy)

by Ganado

beginner tpoic?

What are the errors? Copy and paste them for us next time. Your binaryK function returns a vector<int>, but you never use this. If you need to treat a vector a...

[8 replies] Last: It doesn't matter now, someone gave the OP "The Boot..." [quote=jonni... (by deleted account xyzzy)

by Bazi

C++ coin game using inheritance

Code instructions: The Coin class will act as the base class. Three child classes will be created using the Coin class as the base class. The classes will be ...

[4 replies] Last: #include <iostream> #include <string> #include <ctime> class Coin { ... (by againtry)

by eyeymin

HELP ME WITH THIS PROBLEM! (CHEMISTRY CONVERSION)

Zinc (Zn) is a silvery metal that is used in making brass (with copper) and in plating iron to prevent comosion How many moles of Zn are there in 23.3 g of Zn?...

[2 replies] Last: Well as a starter for part 1): #include <iostream> int main() { st... (by seeplus)

by daddymomo

Do while loop

I'm trying to make a program using do..while loop that asks user for two inputs. Then print from 1 to the first number the user entered or until the first multi...

[4 replies] Last: Alright man, that works perfectly. Thank you for the help, appreciate ... (by daddymomo)

by somecuriousguy

I solved SoloLearn Problem on VS code and when i entered code on their platform it didnt work.

So i was solving this SoloLearn Ticket office problem with C++. here is problem: "~You are working on a ticketing system. A ticket costs $10. The office is ...

[6 replies] Last: [quote=seeplus]the start min is the more than any valid min. The inpu... (by keskiverto)

by dorito200

Overloading the Addition operator to add 2 arrays of numbers

So for a task for school, I have to create a type class that can handle large ints stored as a dynamic array of shorts. I have hit a snag on the addition operat...

[3 replies] Last: That constructor takes one argument, so it can't be the same construct... (by lastchance)

by Kaiser89

Need help debugging a project on C++

Code: https://github.com/Kaiser808/cpp Assignment: https://filebin.net/d7wkeca4r1ydbsxx I need help debugging these files. I got help from someone on Cheg...

[13 replies] Last: Thanks a lot for the help @salem c (by Kaiser89)

by Ganado

Passing arithmetic function objects into map

There was this question here, asking about how to make a particular piece of code shorter: http://cplusplus.com/forum/beginner/282476/ Just for fun, I was tryi...

[2 replies] Last: Yep, that works. Thank you. Apparently lambdas work, too: http://www.... (by Ganado)

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