how to simulation binary search tree on graphic c++

now result is straight line

Does your binary tree use a height balancing algorithm?

No

Hi, how default values for struct fields works? It modify default constructor or smth? For example: struct A { int x = 5; };

Can anyone give me a source where leetcode after contest discussion happens and it's free?

Sorry if I bothering you guybut it frustrating me when I can not see that I am not been able to solve some problem.. After contest I need to learn how the code works..... So that's the thing 😔

It's just default If you don't initialize your field with a value in the initialization list of a constructors, compiler will insert the initialization with the default value you provided

There's a "discussion" button for each leet code problem

Did you hear me properly....i didn't told about regular problems.... I told about contest problems

1. Is it related to the constructor in any way (does it modify it somehow or is it a separate thing)? 2. If i don't provide default value for field: Is it guaranteed by the standard that field will be initialized with 0? Or in the field will be garbage from memory (like with local variables)?

1. Is it related to the constructor in any way (does it modify it somehow or is it a separate thing)? 2. If i don't provide default value for field: Is it guaranteed by the standard that field will be initialized with 0? Or in the field will be garbage from memory (like with local variables)?

1. I don't understand the question

They are default initialized

It's guaranteed that your fields are initialized after { of any constructor

so they initialize fields after constructor?

how people on codechef have soo good c++ skills, like the code which i write is the basic and what they write is advanced , how do i get there? how do i advance my c++ skills? any book? course?

Before the body of the constructor

Before the body: this means after constructor initializer list? 🙃 A(int x = 5) : x(x)

By modify I mean something like implicitly changing the default constructor: // from A(int x = 0) : x(x) {} // to A(int x = 5) : x(x) {}

But a default value for something like int can be implementation-defined, maybe a junk value, I'm not sure here

You have access to an ecosystem that Microsoft has not touched. Why do you think they did WSL?

oh makes sense..ive been thinking to completly remove microsoft and switch to linux

Good evening! Can you please suggest any books or resources where you can look up tricky c++ questions (preferably but not necessarily with answers), very preferably by the latest standards (minimum 17, but preferably 20-23). (It's easier for me to learn that way + control)

Define a tricky question

Where you have to think to say the answer. I imagine ideal questions like the ones Tanenbaum writes (e.g. in his book Modern Operating Systems), but only by modern c++ standards. Still good questions for me are the ones that pose some kind of problem, and you not only need to know the tool to solve it, but also have to guess exactly what to apply, and how to apply it. (There's a key point here in posing problems that are close to the real-world problems that might arise in development)

https://youtube.com/playlist?list=PL3BR09unfgcgf7R88ZQRQqWOdLy4pRW2h You can watch this

This is not exactly what you're looking for

Enabling clang-tidy in a codebase that exists several years is such a pain in the ass

Please help with c++ code(all information in private message)

clang-tidy is well integrated in the IDE and it suggests fixes for possible errors as I type in the code. I ran static analysis after 6 months of writing code, not a single error reported. Thanks to clang-tidy!

clang-tidy is well integrated in the IDE and it suggests fixes for possible errors as I type in the code. I ran static analysis after 6 months of writing code, not a single error reported. Thanks to clang-tidy!

Which platform ? Linux ?

Not everyone uses ides

Qt Creator IDE - cross-platform.

it could be enabled from CMake without using IDE/Editor.

Can someone give some difficult programming problems to solve

Can someone give some difficult programming problems to solve

Can anyone solve my problem? I want to make a simple program for practice I want to use two functions for this program The first function which takes and saves the person's information (such as name and password) The second function It asks the person to enter the details for the trustees again and if it is equal to what he entered in the first function, he will be allowed to enter (I know this is funny and you can write this program by writing in a function, but I like the connection of the function to understand each other better)

No one is gonna write the code for you

I don't need other people's code My only request is a small explanation

How to manipulate something stored in one function in another function

A function can't store anything

If anyone can mentor me on this exercise on exercism.com I would appreciate. It's about concurrency in C++: I have a class of a bank account and want to be able to handle concurrent deposits and withdrawals, what I did was making the balance an atomic std::atomic<int> _balance = 0; Is this OK? Is there any other way? What would be the preferred approach?

iam using lock and unlock Bankaccount::calc https://exercism.org/tracks/cpp/exercises/bank-account/solutions/kenzanin

If anyone can mentor me on this exercise on exercism.com I would appreciate. It's about concurrency in C++: I have a class of a bank account and want to be able to handle concurrent deposits and withdrawals, what I did was making the balance an atomic std::atomic<int> _balance = 0; Is this OK? Is there any other way? What would be the preferred approach?

If anyone can mentor me on this exercise on exercism.com I would appreciate. It's about concurrency in C++: I have a class of a bank account and want to be able to handle concurrent deposits and withdrawals, what I did was making the balance an atomic std::atomic<int> _balance = 0; Is this OK? Is there any other way? What would be the preferred approach?

what I don't understand is if my salary is 8 l then how will this work

I just checked the question. Using atomic variables won't work here. If suppose say there are three people A, B and C. If A is sending 400 to B and B is sending 300 to C, and assuming A has 400, B has 0 and C has 0. Now suppose A-B transaction happens first and B-C transaction happens next. Now every transaction has two atomic variables involved. For A-B transaction, suppose the thread handling this transaction debits A's account and gets context switched before it can add to B's account. Now suppose the thread handling B-C runs, it will fail when it tries to debit 300 from B's account because the balance is 0. Ideally A-B transaction should have completed fully before B-C transaction is attempted. So the lesson here is that atomic variables don't guarantee transactional integrity. The other way to say this is that atomic variables are data race free but are still subject to race conditions one of which I highlighted above. One way to handle this problem would be using a lock for each account and conditional variables. When you lock an account use a cv to determine if the account balance allows it to proceed with the transaction.