22. Equal Strings C++

#include <iostream>
#include <string>

bool AreEqual(const std::string&, const std::string&);

int main()
{

    std::string s1, s2;
    std::cin >> s1 >> s2;

    if (AreEqual(s1, s2))
        std::cout << "Equal\n";
    else
        std::cout << "Not Equal\n";

    return 0;
}

bool AreEqual(const std::string& a, const std::string& b)
{
    if (a.length() != b.length())
        return false;

    for (int i = 0; i < a.size(); ++i)
        if (a[i] != b[i])
            return false;

    return true;
}