Can anyone please help me out in this question. I have made the code it works fine as per me, but the app doesn't give me all test cases correct.

No

What about a MyChar pointer to char

Persian?

Yes

Nice too meet

Pele Persian

Are you Persian too?

What about a MyChar pointer to char

Que-> Given the sizes and left or right shoe, determine the pairs that can be formed with sizes being equal and left and right shoe. Pasting the code...

Did Somebody say anything?

Nope 🙂

That's you 🤣 Having any solution?

Just specify exactly what you're stuck with currently , I'm sure someone will help you out.

Mentioned it in earlier messages...

Can you give me an i/p and o/p?

Can you give me an i/p and o/p?

Hey, can anyone code a 22 lines python code to c++ ?

Hey, can anyone code a 22 lines python code to c++ ?

https://www.includehelp.com/python/shoes-matching-competitive-coding-questions.aspx This code

The most important thing is math, you can start with whatever you want but python and c is better than other languages for a beginner

https://gist.github.com/Zenohate/2c8ddea5cdeb7a4ae9dc7cc4dba516c7

Sorry, I don't know STL, please do it in traditional way....

Sorry, I don't know STL, please do it in traditional way....

STL is the traditional way

So operator [] need return a Char reference

Ok then the other way of dealing with it 😅

If you have wrapped char with your own Char class like this: class Char { char base; public: Char(char c) { base = c } } Then you could just return char& inside the operator [] in your string class. The default constructors created for the Char class would take care of creating a Char object from char for you If you want more control you can override char() operator https://del.dog/efeckenayl.cpp

get this book, C++ Primer by Stanley Lippman et el. (5th edition for C++11), it's a great book for C++

Interesting

The default constructor, copy constructor, etc are created for you if you don't define one of them. :) Though I wouldn't recommend wrapping base types like char, int etc unless you have a very good reason

If you have wrapped char with your own Char class like this: class Char { char base; public: Char(char c) { base = c } } Then you could just return char& inside the operator [] in your string class. The default constructors created for the Char class would take care of creating a Char object from char for you If you want more control you can override char() operator https://del.dog/efeckenayl.cpp

cannot bind non-const lvalue reference of type ‘Char&’ to an rvalue of type ‘Char’

class Char : public Any{ private: char holder = '\0'; public: Char(); Char(char&); ~Char(); Char& operator=(char&); operator char(); Int toInt() const; Int toIntC() const; String toString() const; };

Then I suggest you use an array of Chars instead of std::string inside String class of yours

how it will work? is it fast?

Idk, it will be slower I think. Will have to test this. Why are you even wrapping base types if you want something fast.

OK I want to delete Char class for 1-this problem 2-utf-8 problem

utf8 aaah, I see. Can't help you there haha. I don't have much experience with handing encoded strings

how to know length of a utf-8 char in std::string??

Utf8 is 8 bits per character so 8 bits I guess

it have range 1-4 Byte

Ahmed each char have 1 Byte

That's not always true. Sizes are infrastructure dependent afaik

yes I said for my pc

For a 64 bit machine, lemme see

That's not always true. Sizes are infrastructure dependent afaik

char is guaranteed to be 1 bytes, but it also defines the byte in C and C++. It is not, however, guaranteed to be 8 bits

Isn't that only for C?

int size(char* s){ int len = 0; while (*s){ len += (*s++ & 0xc0) != 0x80; } return len; }

int size(char* s){ int len = 0; while (*s){ len += (*s++ & 0xc0) != 0x80; } return len; }

No, but in C++ a byte must be able to at least represent a utf8 character of one code unit

Why use pointer for char? That's wasteful afaik

char* and std::string are same in utf-8

but how?

Nvm 😑, for a moment I thought you were manipulating a char with a pointer, not C string

It counts every code unit that marks the start of a utf8 character

I try std::string and char* for know which better for me