Дан массив слов Вывести пары рифмуемых слов (в конце одинаковые три или две буквы)

#include <iostream>
 
bool isRhymingWords(const std::string &w1, const std::string &w2) {
    return (w1.back() == w2.back() && *(w1.rbegin()+1) == *(w2.rbegin()+1));
}
 
int main() {
    std::string words[3] = {"kill", "will", "fild"};
    std::cout << std::boolalpha << isRhymingWords(words[0], words[1]) << "\n";
    std::cout << isRhymingWords(words[0], words[2]) << "\n";
    std::cout << isRhymingWords(words[1], words[2]) << "\n";
    return 0;
}

#include <iostream>
 
bool isRhymingWords(const std::string &w1, const std::string &w2) {
    return (w1.back() == w2.back() && *(w1.rbegin()+1) == *(w2.rbegin()+1));
}
 
int main() {
    std::string words[3] = {"kill", "will", "fild"};
 
    if (isRhymingWords(words[0], words[1])) {
        std::cout << words[0] << " " << words[1] << "\n";
    }
    if (isRhymingWords(words[0], words[2])) {
        std::cout << words[0] << " " << words[2] << "\n";
    }
    if (isRhymingWords(words[1], words[2])) {
        std::cout << words[1] << " " << words[2] << "\n";
    }
 
    return 0;
}

string words[5] = {"kill", "bart", "will", "fild", "mart"};