Password Confirmation Code

[EzioKurosaki]

I've been trying to set up a kind of password confirmation code for fun. Containing strings and conditions. And I can only imagine this has 1001 errors that you may see that I cannot. Just give me any suggestions:

#include <iostream>
#include <conio.h>
#include <string>

using namespace std;

int main()
{
    char password;
    char mypassword;
    char a;
    char b;
    char c;

    string correct = password;
    string incorrect = "\n\nInvalid password.";

    cout << "Please enter your password:\n" << endl;
    cin >> mypassword;

    a = correct;
    b = mypassword;
    c = (a==b) ? correct : incorrect;

    cout << c;

    return 0;
}

What do you think? And does this seem like an efficient way to do password confirmations?

Also, the following mistakes keeps coming up:

error: invalid conversion from 'char' to 'const char*'|

error: initializing argument 1 of 'std::basic_string<_CharT, _Traits, _Alloc>::basic_string(const _CharT*, const _Alloc&) [with _CharT = char, _Traits = std::char_traits<char>, _Alloc = std::allocator<char>]'|

error: cannot convert 'std::string' to 'char' in assignment|

error: cannot convert 'std::string' to 'char' in assignment|

Any advice/suggestions?

[eypros]

Why you have posted 2 same posts? You can use edit to edit your posts if you want to add some information later.
Check your other post for some answers.