#include <iostream> #include <stdio.h> #include <vector> using namespace std; int main() { vector<float> t(10001); float simTime=10.0; float dt=0.001; for(int i=0; i<10001; i++) { float value=i*dt; t[i]=value; cout<<t[i]<<endl; } vector<float> i_a(t.size()); i_a[0]=0.0; double ka =3; double kb=2; double kc=1; int check; for (int i=0; i<10001;i++) { if (t[i]<0 || t[i]==0) { check=1; } else { check=0;} i_a[i+1]= i_a[i] + ( -(kb/ka)*i_a[i] + (kc/ka)*check)*dt; cout<<i_a[i]<<endl; } return 0; }

I have one question about arrays .Can anyone who knows the arrays write to me ?

write your question here

The code is ok, but I don't know because the value are wrong. The current should increase

The current has to reach 0.5

write your question here

I want program to recursive mode the multiplication of the digit values ​​of the number entered by the user.

I want program to recursive mode the multiplication of the digit values ​​of the number entered by the user.

your question?

your question?

How can I transfer the place values ​​of the number I wrote into the array?

use indexes of the array

How can I transfer the place values ​​of the number I wrote into the array?

Reach the element in a for loop; Wherein increment the value of ( powerOfTen = 1 ) by 10 in each iteration. This is how you'll get the place value of a num. For ex:- in 1234, 2 -> 100 (the var value) which you can multiply with the digit

Reach the element in a for loop; Wherein increment the value of ( powerOfTen = 1 ) by 10 in each iteration. This is how you'll get the place value of a num. For ex:- in 1234, 2 -> 100 (the var value) which you can multiply with the digit

If you're struggling with how to find place value...

How can I transfer the place values ​​of the number I wrote into the array?

use memcpy perhaps?

I am aware that there is no c# channel, but I could not find a channel to ask and ı wanted to get the opinions of those who know. Is there a youtube channel for c# that you can recommend? And for oop. Thanks..

I am aware that there is no c# channel, but I could not find a channel to ask and ı wanted to get the opinions of those who know. Is there a youtube channel for c# that you can recommend? And for oop. Thanks..

There are groups for C# too https://thedevs.network/

There are groups for C# too https://thedevs.network/

Thank you :)

I am aware that there is no c# channel, but I could not find a channel to ask and ı wanted to get the opinions of those who know. Is there a youtube channel for c# that you can recommend? And for oop. Thanks..

@en_it_chats

@en_it_chats

Thanks :)

/get cbook

may i ask that whether the admin is a real person or a bot , or both

may i ask that whether the admin is a real person or a bot , or both

Rose is a bot, you can tell by the username (@MissRose_bot)

Can I overloading << operator for ofstream and ostream at the same time?

Can I overloading << operator for ofstream and ostream at the same time?

ostream is ofstream base class

go figure

friend std::ostream& operator<<(std::ostream &sout, Hex &game); friend std::ofstream& operator<<(std::ofstream &fout,const Hex &game);

std::ofstream file(fname); file << this; file.close();

Vs says << is ostream type

friend std::ostream& operator<<(std::ostream &sout, Hex &game); friend std::ofstream& operator<<(std::ofstream &fout,const Hex &game);

You don't need both

ostream is enough. Polymorphism, fren'

But declaration is different I mean output

std::cout << "OFSTEREAM " << std::endl; fout << "Id: " << game.getId() << std::endl; fout << "Size: " << game.getSize() << std::endl; fout << "Type: " << game.getType() << std::endl; fout << "Turn: " << game.getTurn() << std::endl; fout << "Winner: " << game.getWinner() << std::endl; fout << "Finish: " << game.getFinish() << std::endl; for (int i = 0; i < game.getSize(); ++i) { for (int j = 0; j < game.getSize(); ++j) { if (game.hexCells[i][j].getCell() != celltype::empty) fout << i << " " << j << " " << game.hexCells[i][j].getCell() << std::endl; } } return fout;

int c = 0; int free = 0; sout << "--------------------------------------------\n"; sout << "ID : " << game.getId() << " " << "Size : " << game.getSize() << " "; sout << "Type : " << game.getType() << " " << "Turn : " << game.getTurn() << " "; sout ; sout << "Winner: " << (char)game.getWinner() << " " << "finish :" << game.getFinish() << std::endl; sout << game.scoreOfUsers() << std::endl; sout << " "; for(char clm ='A' ;c<game.getSize();++c) sout << char(clm+c) << " "; sout << std::endl; for(int i=0; i<game.getSize(); ++i){ sout << i+1 << " "; for (int j = 0; j < free; ++j) sout << " "; for (int j= 0; j< game.getSize(); ++j) sout << char(game.hexCells[i][j].getCell()) << " "; sout << std::endl; free++; } sout << "=====================================\n"; return sout;

You don't need both

https://godbolt.org/z/q4r76a

Btw is it safe to take an address of cout?

https://godbolt.org/z/q4r76a

Thanks I guess it will work

Btw is it safe to take an address of cout?

No?

No?

I dunno that's why I'm asking, lol

😂😂

I know that taking an address of std:: functions is ub(unless specified otherwise)

Btw is it safe to take an address of cout?

yes, why shouldn't it?

std::cout << "OFSTEREAM " << std::endl; fout << "Id: " << game.getId() << std::endl; fout << "Size: " << game.getSize() << std::endl; fout << "Type: " << game.getType() << std::endl; fout << "Turn: " << game.getTurn() << std::endl; fout << "Winner: " << game.getWinner() << std::endl; fout << "Finish: " << game.getFinish() << std::endl; for (int i = 0; i < game.getSize(); ++i) { for (int j = 0; j < game.getSize(); ++j) { if (game.hexCells[i][j].getCell() != celltype::empty) fout << i << " " << j << " " << game.hexCells[i][j].getCell() << std::endl; } } return fout;

Can anyone say what are the "fout" and "sout" here?

I guess these cout and cin adress is not change until program done

Can anyone say what are the "fout" and "sout" here?

Variable name

I guess these cout and cin adress is not change until program done

I am not sure

Is sout << "......\n"; not cout??

Is sout << "......\n"; not cout??

I guess it's a string stream

It is ostream string to assaign cout

It is ostream string to assaign cout

whut?

I mean classic overload varible

I guess it's a string stream

Not a stringstream I guess...

No it is not

I know that taking an address of std:: functions is ub(unless specified otherwise)

are you sure? In the end a std::function is just another object you can take the address of. #include <functional> #include <cstdio> static void foo(int x, int y) { std::printf("%d, %d\n", x, y); } int main() { auto fn = std::bind(foo, 1, std::placeholders::_1); auto pfn = &fn; (*pfn)(123); }

I mean classic overload varible

Everyone buckle up it's a variable overload

lmao im dying

are you sure? In the end a std::function is just another object you can take the address of. #include <functional> #include <cstdio> static void foo(int x, int y) { std::printf("%d, %d\n", x, y); } int main() { auto fn = std::bind(foo, 1, std::placeholders::_1); auto pfn = &fn; (*pfn)(123); }

Hey Olli how do you write this in a copy-able format?

are you sure? In the end a std::function is just another object you can take the address of. #include <functional> #include <cstdio> static void foo(int x, int y) { std::printf("%d, %d\n", x, y); } int main() { auto fn = std::bind(foo, 1, std::placeholders::_1); auto pfn = &fn; (*pfn)(123); }

I didn't mean std::function

Rather the functions that are within std:: namespace

Hey Olli how do you write this in a copy-able format?

the monospace font? Use triple backticks, e.g. ``` code ```

if i were to define a list constructor like this, how am i gonna make it?

https://en.cppreference.com/w/cpp/container/unordered_map/unordered_map

i dont see the word list constructor but initialisation list,

Anyone willing to make a hobby project with me ?

if i were to define a list constructor like this, how am i gonna make it?

What does list constructor mean? Can you give an example?

// list constructor std::unordered_map<int, std::string> m2 = { {1, "foo"}, {3, "bar"}, {2, "baz"}, };

from cpp reference

in addition, i came across template<T> mystruct<T*> which i cannot understand

an example of this would be std::hash, where there are lot of variants for the basics type

// list constructor std::unordered_map<int, std::string> m2 = { {1, "foo"}, {3, "bar"}, {2, "baz"}, };

Yes, then constructor with std::initializer_list is what you need. Note that for the objects that will be cunstructed (like std::pair in the example of map) their constructors with multiple arguments should not be marked as explicit to be constructed with {}

an example of this would be std::hash, where there are lot of variants for the basics type

std::hash is another animal as I understand Do you need your arguments from which you construct your class to be all the same (as with map) or they can be different (as with tuple)? Should the type of the object change from the arguments (like std::pair, std::tuple)?

Because in case of the map, initializer_list can help to pass objects that will be stored in the container, but these will not affect type as far as I remember. And pair and tuple are made with templates so their type depends on every element of the constructor

int main(){ static int n = 1; if(cout<<n<<" " && n++ < 10 && main()) {} }

int main(){ static int n = 1; if(cout<<n<<" " && n++ < 10 && main()) {} }

To write 1 to 10

Can you do any better?

int main(){ static int n = 1; if(cout<<n<<" " && n++ < 10 && main()) {} }

I can do it writing valid code. So yes, I can do better.

Anyone willing to make a hobby project with me ?

Me but I dunno c much

int main(){ static int n = 1; if(cout<<n<<" " && n++ < 10 && main()) {} }

You don't need static for local variables in main. You should not do anything but checks inside if check, so don't put cout << there. You should not call main directly, it's a special function.

Printf better I am in android my laptop out somewhere I have termux any idea for command line projects

Printf better I am in android my laptop out somewhere I have termux any idea for command line projects

I don't think I'm on the level where you're.

I should learn more

I am a high school student the last project I made is a chess engine

I am also not pro

I am a high school student the last project I made is a chess engine

Woah