Enigma

Can anyone tell me how to iterate through a map using auto in reverse order without any pain?

for (auto iter = my_map.crbegin(); iter != my_map.crend(); ++i)

Can anyone help me in linked list iam new to it and getting segmentation error

Can anyone help me in linked list iam new to it and getting segmentation error

Very little information given

Can anyone help me in linked list iam new to it and getting segmentation error

Good for you

for (auto iter = my_map.crbegin(); iter != my_map.crend(); ++i)

Is there any difference b/w my_map.rbegin() and my_map.crbegin()? Although, I wanted it like for(auto &x : my_map) but in reverse manner.

Is there any difference b/w my_map.rbegin() and my_map.crbegin()? Although, I wanted it like for(auto &x : my_map) but in reverse manner.

Yes, there's the difference, crbegin() gives const iterator

and we cannot change the value like iter->second = some_value?

Is there any difference b/w my_map.rbegin() and my_map.crbegin()? Although, I wanted it like for(auto &x : my_map) but in reverse manner.

You cannot use range-based for loop for that until C++20

and we cannot change the value like iter->second = some_value?

I think so

You cannot use range-based for loop for that until C++20

And c++20 is latest?

And c++20 is latest?

C++20 is not released yet

And c++20 is latest?

yes, we are in 2019, 2020 is next year

And c++20 is latest?

C++17 is the latest

Can anyone tell me how to iterate through a map using auto in reverse order without any pain?

Why don't u just use a reverse iterator?

C++17 is the latest

okk

Why don't u just use a reverse iterator?

why so we use for(auto &x:mp)

Why don't u just use a reverse iterator?

to keep it short and concise.

Ok then you can just reverse the map B4 using it in a for each loop

why so we use for(auto &x:mp)

It is available since c++20 by Ranges Technical Specification

Ok then you can just reverse the map B4 using it in a for each loop

Lol what Reverse the map?😂

Ok then you can just reverse the map B4 using it in a for each loop

Wow can you show me how to do that?

Lol what Reverse the map?😂

Use std::move ()

Use std::move ()

Whaaaaaat😂😂😂😂😂

Use std::move ()

Can you give a code snippet? I would love to see it working

Use std::move ()

Do you even understand what std::move does?

U ust move it to another map but u start with end to begin

A Map internally uses tree like structure and how to you reverse it?

Can you give a code snippet? I would love to see it working

Don't listen to him, he is talking nonsense

A Map internally uses tree like structure and how to you reverse it?

There's no way

Don't listen to him, he is talking nonsense

I know. Just want to see how people have nice ideas about things that they don't know.

Use reverse iterators and that's it

U ust move it to another map but u start with end to begin

And why is he supposed to do that?

Yeah sadly that's the only way.

I checked it but something "boost" came up and I put down the idea.

I checked it but something "boost" came up and I put down the idea.

?

reverse adaptors

https://stackoverflow.com/questions/732160/how-to-iterate-in-reverse-over-a-map-in-c

1st answer

Well, it's boost

Not a standard c++

But the similar thing will be in C++20

/opencv

/opencv

How to multiply two numbers which have a base system other than 10 without converting them to decimal system?

More info

There's no way

Just to prove ur lack of creativity I just created a function which reverses a map

Just to prove ur lack of creativity I just created a function which reverses a map

Show it. NOW

Just to prove ur lack of creativity I just created a function which reverses a map

🤦‍♂

Just to prove ur lack of creativity I just created a function which reverses a map

I'm waiting for your creativity. where is it?

Hahaha I admit it's stupid but u guys said it's impossible so I copied the elements from a map to a list<std::pair<datatype,datatypa>> then I clear the map an then reverse the list then copy the elements back to the map🤦‍♂

🤦‍♂

LOL.

Hahaha I admit it's stupid but u guys said it's impossible so I copied the elements from a map to a list<std::pair<datatype,datatypa>> then I clear the map an then reverse the list then copy the elements back to the map🤦‍♂

We didn't say that lol Your imagination is so cool

Hahaha I admit it's stupid but u guys said it's impossible so I copied the elements from a map to a list<std::pair<datatype,datatypa>> then I clear the map an then reverse the list then copy the elements back to the map🤦‍♂

and start iterating that map now. Do you find them in sorted order.

..

Hahaha I admit it's stupid but u guys said it's impossible so I copied the elements from a map to a list<std::pair<datatype,datatypa>> then I clear the map an then reverse the list then copy the elements back to the map🤦‍♂

Code it buddy.

..

Dude, if you can't read, it is your problem

There's no way

...

Code it buddy.

Give me 5mins

Hahaha I admit it's stupid but u guys said it's impossible so I copied the elements from a map to a list<std::pair<datatype,datatypa>> then I clear the map an then reverse the list then copy the elements back to the map🤦‍♂

Kindly find your map unreversed

...

No one asked you how to move something

After all the shit you did to it

😂😂😂Damn it i get it now..

If possible just use vector<pair<datatype, datatype>> and save ur self some pain

How to multiply two numbers which have a base system other than 10 without converting them to decimal system?

Read about bite operations(if it is) or watch videos about the base what do you need.

If possible just use vector<pair<datatype, datatype>> and save ur self some pain

🤦‍♂️ x2

https://paste.ubuntu.com/p/y4SpCBPgq2/

🤦‍♂️ x2

Why

If possible just use vector<pair<datatype, datatype>> and save ur self some pain

Please, if you don't know what you're talking about, just say nothing

https://paste.ubuntu.com/p/y4SpCBPgq2/

Ajay

Why

The question was how to iterate MAP in reversed order You're talking about std::move, vectors...

Yeah I meant it as an alternative if it suited his needs thats y I said if 'posible' bcoz he wanted to use for(auto:container)

@admin can I promote my group

Please

/report

Can anyone help me in linked list iam new to it and getting segmentation error

It could be that you’re not allocating right about of memory for storing the information.

How to multiply two numbers which have a base system other than 10 without converting them to decimal system?

To do this your you’ll have to write actual way to add things in this new system, but computer actually works in binary that means it only works with 0 or 1 it doesn’t know 10 base or 16 base. Convert 16 base to 10 base do calculation and convert result back to 16 base or whatever.

/report

@admin can I promote my group

no.

no.

So sad okay I will not