#include <cassert>
#include <cstddef>
#include <iostream>

// Two strings are equal if they both have the same
// number of characters and each pair of corresponding
// characters is the same.
//
// Author a function that determines whether or not
// two strings are equal.

// Function declarations
bool are_strings_equal(
    char const str1[],
    char const str2[]
);

int main();

// Function definitions
int main() {
    std::cout << are_strings_equal(
        "Hi", "Hi there!"
    ) << std::endl;

    std::cout << are_strings_equal(
        "Hi", "Hi "
    ) << std::endl;

    std::cout << are_strings_equal(
        "Hi", "Hi"
    ) << std::endl;

    std::cout << are_strings_equal(
        "This is a sentence.",
        "This is a sentence."
    ) << std::endl;

    std::cout << are_strings_equal(
        "This is another sentence.",
        "this is another sentence."
    ) << std::endl;

    std::cout << are_strings_equal(
        "This is a third sentence.",
        "This is a thrid sentence."
    ) << std::endl;

    return 0;
}

bool are_strings_equal(
    char const str1[],
    char const str2[]
) {
    // Enter your implementation here.
    return false;
}






























// Hint: You do not have to determine the lengths
// of both strings first.
//
// Remember that every C-style string ends with the
// null character '\0'.





























// Here is one solution:

/*
bool are_strings_equal(
    char const str1[],
    char const str2[]
) {
    for ( std::size_t k{ 0 }; true; ++k ) {
        if ( str1[k] != str2[k] ) {
            return false;
        } else if ( str1[k] == '\0' ) {
            // We already know that str1[k] == str2[k].
            // Therefore, if str1[k] is the null
            // character, str2[k] must be as well.
            assert( str2[k] == '\0' );

            return true;
        }
    }
}
*/