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Beginners - January 2021 (Page 2)

error: expected unqualified-id before ‘return’

I am trying to create a piece of code for an assignment that is due in 17 hours. it needs to be in the style of a gameshow in which a question is asked in code,...

[14 replies] Last: i didnt use all of the feautures i intended on, such as the case secti... (by JackLadYT)

by Vendetto

Simple File Copying

I've been trying to figure out a way to simple copy all the files in the current working directory to another folder. I've done this before using system("XCOPY...

[4 replies] Last: The only way I see to do it is the unattractive directory iterator whi... (by jonnin)

by Reddevil1003

stuck in linked list basics

here how head->next is getting address of tail.. nowhere we have specified head->next=tail or head->next=tmp; i understand first call to add() head-> shows...

[9 replies] Last: node(int aa) : a(aa) {} This is a class constructor that takes on... (by seeplus)

by learner999

Receiving the data from file to the function

I need a small help for my c++ function. I am writing a function called "calculate". The Pr array is a data in a file called "data" and is read from the file p...

[6 replies] Last: Thank you JLBorges, it worked , thank you so much again (by learner999)

by Shervan360

Calculate Sinx in C++

Hello, I'd like to calculate sinx with the below formula. My answer is wrong. for example sin(35) is 0.42 but my program gave me -0.42 Formula: https://i.ibb...

[11 replies] Last: I know the OP didn't want recursion, but I quite like this method. It'... (by lastchance)

by laura fidarova

find the sum of numbers in a .txt file

i need to find the sum of rounded to one number after the dot numbers(don't know the right way to call it)(1.63 = 1.6; 3.525=3.5 etc) in a txt file located in t...

[5 replies] Last: Thank you!! (by laura fidarova)

by Zaneemma

Functions

In this program create a one-dimensional array of n random integers from the range [a,b], where n, a,b are given by the user. compute and display how many posit...

[2 replies] Last: Consider: #include <random> #include <iostream> #include <limits> #... (by seeplus)

by HypeCoderPanda

Text Adventure Like Torn.

I have been trying to make a text adventure game based on torn, but with only two choices. Employe and Hacker. Or, if your feeling genourus, maybe add in "Cri...

[3 replies] Last: Note that you could also be using else if chains to prevent redundant ... (by Ganado)

by EmanCS

Reading text file and save in vector

I have a text file consisting of 5 lines. int int int unknown number of int separated by space unknown number of int separated by space This is a sample...

[2 replies] Last: Thank you. It works. (by EmanCS)

by EmanCS

free the memory

Hello How can I free the memory allocated by grid ? int **grid; grid = new int* ; for(int i = 0; i < height; ++i) grid = new int ; for(int i=0;...

[5 replies] Last: Thanks a lot. It works. (by EmanCS)

by munim

how to make a simple college library program.

hello there i want to make a simple college library program in which one can add the information of the book like book name publish day last day and name of th...

[2 replies] Last: A good start would be to declare a struct Book with the required field... (by thmm)

by wanabeahacker

I do not understand "foo.get() = 15" in the code.

I do not understand foo.get() = 15; as the function get has no parameter, what does foo.get() = 15; mean? and why it returns 15? Thanks in advance for...

[3 replies] Last: @seeplus @Furry Guy thanks for your replies. (by wanabeahacker)

by Temss

Group numbers

I have numbers in a single array (30,20,25,15,50,30,80..). I want to group all numbers possible in another array without surpassing a total of 80. For example: ...

[1 reply] : Is there a reason why (15, 50) isn't group 2? What have you tried so ... (by Ganado)

by Vendetto

Concatenate 2 lines in a vector

I have this program that cleans up some text files for me. I wanted to see if I could take any comments noted with // and move them after the line below them. ...

[8 replies] Last: seeplus's response worked perfectly!! (by Vendetto)

by M09

Memory limit

Code is supposed to transform all the letters in uppercase and to print the sum of the digits. Ex: in: 5 a B 6 % 7 out: AB 13 The problem is that it uses too m...

[5 replies] Last: Perhaps something like this which doesn't use stream insertion - but j... (by seeplus)

by lg77756

Why isn't my code displaying the correct output?

I am reading from a text file. Asking the user to input an inventory number and finding that inventory number using the linear search function. Then I am displa...

[5 replies] Last: Hello lg77756, I wish I could have finished this last night, but I co... (by Handy Andy)

by siabapet

How to get rid "+" word in loop

How to get rid "+" on output example: i input: 6, the output is: 1 + 2 + 3 + 4 + 5 + 6 + = 21 but i want + after six is deleted #include <iostream> using na...

[5 replies] Last: #include <iostream> using namespace std; int main() { int n {}, su... (by seeplus)

by siabapet

Solve my assignment please!

Make a sequence of number from 3n+1. If one of the sequence got even number then make it half from the previous sequence number. Repeat process from before unti...

[2 replies] Last: and what part of this are you having difficulty with? Can you obtain n... (by seeplus)

by DevReign

structuring a game project

I'm working on a basic 2d game framework with Sdl, but I'm not sure how to make instances and game assets available to the game objects. any help would be appre...

[8 replies] Last: I suppose singletons will work for the managers, I'll avoid globals an... (by DevReign)

by siabapet

How to search sentence in cpp

how to make program like this: in the cpp file there is a sentence: Dave buy 2 mangoes Felix buys 1 basketball Sara sells shoes for 200 dollars ~ when I run i...

[5 replies] Last: sorry for late answer. thank you everyone I appreciate it. (by siabapet)

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