@programminginc - страница 2155

klimi

you are missing main function

klimi

int main() { your code here }

Artöm

On a school project and I've encountered this. What do I do?

Variables go in main

Anonymous

On a school project and I've encountered this. What do I do?

nothing you just declared main function but haven’t defined it

Anonymous

add main() before curly brace

Anonymous

Did he declare main?

Anonymous

yes

Anonymous

line 3

Artöm

Good programmers always declare main before defining it

Artöm

Better move main declaration to main.h and include it in main.cpp. Thats how one does stuff

NXiss7

Did he declare main?

Declared but not defined

NXiss7

Better move main declaration to main.h and include it in main.cpp. Thats how one does stuff

😂😂😂😂

Artöm

He isnt using headers smh

NXiss7

😄

Anonymous

Good programmers always declare main before defining it

nothing wrong in declaring main before and that can’t make you good or bad… cause when defining you will havie to write main() before “{“ so it’s like writing the same thing again… if it is school project they must be wanna check whether you understand function syntax properly or not… cause again writing int main() will throw an error during compiling…

Anonymous

Better move main declaration to main.h and include it in main.cpp. Thats how one does stuff

😂

Artöm

nothing wrong in declaring main before and that can’t make you good or bad… cause when defining you will havie to write main() before “{“ so it’s like writing the same thing again… if it is school project they must be wanna check whether you understand function syntax properly or not… cause again writing int main() will throw an error during compiling…

Declaring main benefits nothing

Anonymous

yep I said already it’s like witing the same thing again but for school project they must be wanna check if someone defines it again and face an compilation error

Anonymous

I don't understand please elaborate🥺

Anonymous

function declared and defined later

Anonymous

in that case it’s main() function

Anonymous

I think you get it C. E. O

Anonymous

I believe I do I'll go through it again Thanks for the help😊

Anonymous

Can we declare static constructor....?

Nameful

Can we declare static constructor....?

what for?

Wisenky

hy guys

Ayush Srivastava 22MCA10118

For learn programming please visit Backbenchernotes.com

Anonymous

what for?

Like this static constructor() { }

Nameful

But why?

Nameful

What would a static constructor be?

Wisenky

For learn programming please visit Backbenchernotes.com

a have a question about strings , how can I get integer from char array inside txt file ?

Wisenky

for example I have a txt file and information about a name , age , job inside it . Im trying to print job who is older than 30

Wisenky

Im newbie

Wisenky

Anyone has idea ? thanks

.

Dima

Anyone has idea ? thanks

You can use strtok and atoi() age

Anonymous

Thank you I'm sorry because I late to reply you

Anonymous

Can we declare static constructor....?

AFAIK there is no such thing as static constructor in C++, however you might simulate such thing using static/global objects with normal constructors. these constructors will always be called before main(), no matter they are actually needed or not

Wisenky

You can use strtok and atoi() age

solved with my easier way , and thanks alot for your opinion :)

Dima

I thought you are having troubles with parsing those lines

Dima

good for you

Wisenky

I thought you are having troubles with parsing those lines

yeah you are right

Wisenky

I wasnt know if I put two %s inside scanf it can get two of strings

Anonymous

Hi

Rajath V

https://www.linkedin.com/posts/rajath-v_tensorflow-flutter-dataset-activity-6638666920935686144-jrmU

Anonymous

AFAIK there is no such thing as static constructor in C++, however you might simulate such thing using static/global objects with normal constructors. these constructors will always be called before main(), no matter they are actually needed or not

👍

litepresence

I have massive array of integers from 1 to 3.7 billion; I need to take square root, I can accept the closest integer solution. efficiency is of the utmost importance. is there a faster way than cmath sqrt() ??

01000001011011010100000101101110

I have massive array of integers from 1 to 3.7 billion; I need to take square root, I can accept the closest integer solution. efficiency is of the utmost importance. is there a faster way than cmath sqrt() ??

Binary exponentiation

litepresence

thanks will research, do you have any link you can share?

01000001011011010100000101101110

https://stackoverflow.com/a/19611407/8258801

Anonymous

Best Square Root Method - Algorithm - Function (Precision VS Speed) - CodeProject https://www.codeproject.com/Articles/69941/Best-Square-Root-Method-Algorithm-Function-Precisi

litepresence

you guys are awesome. huge.

Anonymous

you guys are awesome. huge.

We know how to use google

Anonymous

:D

shubham

can anyone tell me its solution ?

01000001011011010100000101101110

can anyone tell me its solution ?

Do your own test

shubham

well answer is coming 36

Xcruzhd2

can anyone tell me its solution ?

1 I think

shubham

but idk why

01000001011011010100000101101110

well answer is coming 36

Yes It is correct

01000001011011010100000101101110

but idk why

Because of the macro. X = 36 / 6 * 6

01000001011011010100000101101110

Because of the macro. X = 36 / 6 * 6

Which is 36 as ( 36/6 = 6 then 6*6 is 36)

Xcruzhd2

Because of the macro. X = 36 / 6 * 6

Is it not like X = 36/(6*6)?

01000001011011010100000101101110

Is it not like X = 36/(6*6)?

No, Try reading the macro definition.

Xcruzhd2

No, Try reading the macro definition.

Ohk

Xcruzhd2

No, Try reading the macro definition.

Hey bro we have same name with same surname

Anonymous

It’s like replace the words not doing math🙃

01000001011011010100000101101110

Hey bro we have same name with same surname

Lol, it is pretty common.

01000001011011010100000101101110

It’s like replace the words not doing math🙃

Yes and always with priority of operators.

Anonymous

Akash

How can I move text cursor up in c++

Pavel

How can I move text cursor up in c++

If you're talking about mouse cursor and windows, then you probably need winapi https://stackoverflow.com/questions/22259936/c-move-mouse-in-windows-using-setcursorpos

Akash

If you're talking about mouse cursor and windows, then you probably need winapi https://stackoverflow.com/questions/22259936/c-move-mouse-in-windows-using-setcursorpos

Thank you so much Paval but I was asking for text cursor

Asdew

If the terminal supports ANSI escape codes, you can use them.

Anonymous

Please is this the right algorithm of this question

Anonymous

☝🏾

Anonymous

??

Pavel

Please is this the right algorithm of this question

The task is not clear for me (what are desired formats of the inputs and outputs). In some interpretation of the task this can be a correct answer, I think.