How to work with Russian characters in C++?

Question

ASCII

I am programming in Ubuntu and I ran into a problem: Russian characters are not displayed in the terminal.
Looked at the ASCII table and tried to deduce the character codes. Gives the wrong range and wrong characters.
How to solve this problem ?

#include <iostream>
#include <clocale>
using std::cout;
using std::endl;

int main(){
    setlocale(LC_CTYPE,"rus");
   unsigned char a = 'а';
   for(int i = 0; i < 34; i++){
   cout<<a<<" "<<static_cast<unsigned int>(a+i)<<endl;
   }
    return 0;
}

Answer 1

#include<iostream>
int main()
{
  std::cout << "пиши как есть" << std::endl;
}

look at the output in the terminal$ locale

Answer 2

#include <iostream>
#include <clocale>
 
using namespace std;
 
int main()
{
  setlocale(LC_ALL,"Russian");
  cout << "Привет, Мир!";
  return 0;
}

Check.

Answer 3

Save the sources in UTF8 and rebuild. In Lina, UTF8 is now everywhere by default.
In older versions of Linux, the Russian locale was encoded as KOI8-R.