How to write a wchar literal in C++ and output its binary representation

wchar literal in C++

#include <iostream>
#include <bitset>
using namespace std;
int main()
{
    wchar_t A[] = L"bỏ dấu cho đúng chính tả em ơi";
    for(auto x : A){
        cout << bitset<16>( x ) << endl;
    }
}