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Beginners - April 2022 (Page 3)

Hello I would like to get some feedback on my overall code here. And i am getting stuck on line 49. your feedback will be appreciated. #include<iostr...

[7 replies] Last: [quote=HellocMonkey]I have an error on line 49 still I don't know if ... (by deleted account xyzzy)

by Sophia2003

button that turns off all features in embedded systems

Hey my name is Sophia, I am new to coding and embedded systems and I wanted to make a button that turns off and on a LED and at the same time turn off all o...

[3 replies] Last: Have you heard of integer division? In c++ and most other programming ... (by lastchance)

by robduis

Boolean to define prefix

Hi I have a number of string variables String Day1_Log = "Logs for day 1: " String Day2_Log = "Logs for day 2: " String Day3_Log = "Logs for day 3: " And a ...

[4 replies] Last: The latest code is working and it looks for a state change First it wa... (by robduis)

by wimvandenborre

Initializing constructor

Hey everyone, Ik keep bumping my head agains this, i have a knowledge gap on initializing contsructors, if anyone knows a good resource or could explain it wou...

[5 replies] Last: well, now i have to pass this aditional unlockform: here in the exampl... (by wimvandenborre)

by studentUser23

Studying Advice

Hi I am a student at a community college. I am looking for some help in studying for a C++ exam. Its on the chapters 10 - 12 from the Starting out with C++ ...

[4 replies] Last: Have a look at https://www.learncpp.com/ (by seeplus)

by rich112

how to ensure an input is an integer?

int age; cout << "how old are you?" << endl; cin >> age; how could i edit this to make sure the age is actually an integer?

[6 replies] Last: User input is never "simple". To do it correctly, understand that the... (by Duthomhas)

by ahmed0x

Functions

Write your question here. I'm really lost with this code I dont really have a clue Im not trying to cheat I just work better off a finished code. #includ...

[3 replies] Last: Also for the prototype you should have double percent(int ptsEarned, ... (by seeplus)

by RandomnessRamen

Hailstone sequence

I am having difficulties with this lab so so if anyone can help, it would be greatly appreciated. Given a positive integer n, the following rules will always c...

[4 replies] Last: Thanks for your help! I am truly grateful your both of your efforts. (by RandomnessRamen)

by kostomberov

Trying to input a file and storing the data in a vector

Hello everyone! I am trying to store the data of a file into a vector of type Ingredients*. I would really appreciate it if you could help me. The project has a...

[11 replies] Last: Thank you! I really appreciate your help. I have now added the other c... (by kostomberov)

by KFreerksen

static_cast and enum value

Why can't I sucessfully get the enum value from the static cast? What am I missing? #include <iostream> using namespace std; struct Date{ int day...

[6 replies] Last: Perhaps something like: #include <iostream> struct Date { unsigne... (by seeplus)

by rich112

vector.erase()

how would i erase elements from my vector without using a constant integer? my vector is sorted like: username(1),password(1),name(1),age(1),hours(1),late(1),u...

[3 replies] Last: but i do not know the value of z before i run my program. from what ... (by seeplus)

by vasncode

How can I transfer the user input from function to function

I cant seem to get the program to calculate the hypotenuse. It prints 0.00 everytime. I think it's because it has no clue about the user's input. (I'm aware ...

[5 replies] Last: thank you ^^^ (by vasncode)

by jNc

string array to dat file issues

Hello there, i'm having difficulties when importing string array of 18 columns to dat file. It crashes in 30% times... Why does it happen? I guess it must be ...

[7 replies] Last: Note that if Database contains pointers (or objects that contain point... (by Peter87)

by rich112

Nested Class using function in outer class?

class A: hello() greeting() <>class B: <>hello() is there a way so that class B can access the functions in class A without having to retype the function...

[3 replies] Last: Nested classes can access all member functions (and member variables) ... (by Peter87)

by baked turkey

Two issues my loops

Having two issues with this code. First, I need it to display the last 20 prime numbers. Currently it shows me the first 20 (this is probably an easy fix but I'...

[7 replies] Last: Sieve, obviously. On introduction valarray was the moon from the sky,... (by keskiverto)

by dorito200

cout'ing a float

Hey yall, another question. So I'm trying to output a float in a cout statement, and it keeps giving me extra numbers on the end, specifically 012142. The float...

[5 replies] Last: If you print a newline character '\n' right after the float do the e... (by Peter87)

by Geckoo

Function and its parameters

Hello everyone. I remember an article explaining how to manage functions and their parameters. However, I remember an explanation about some additional paramete...

[9 replies] Last: One of the biggest reasons why I tend to avoid using variadic argument... (by deleted account xyzzy)

by ashajohn2021

How do I return a value of -1 if there are no duplicate values

This code is supposed to find the value with the most occurences. It's supposed to return a -1 if the their were no duplicate values. Here is what I came up w...

[4 replies] Last: If you take 100 values ... each between 1 and 100 ... the chance of no... (by lastchance)

by codernew

what is 0x3<<14 mean ?

I am new in c++ coding in this chapter I can not understand the meaning of " mask = 0x4<<16;"

[4 replies] Last: this is, by the way, horrible code. the function uses pointers to repl... (by jonnin)

by Pen72

Fitting items

Is this similar to knapsack problem, what sort of functions should I use? There are N chocolates and several boxes. Each chocolate has its own calories. Each...

[10 replies] Last: Yes, it works well now, thanks, I'll dive into the code. (by Pen72)

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