What Modern C++ Nerds want you to Believe

std::array<uint32_t, 5> high_scores;
// ...
std::string high_scores_string = "High Scores: ";
for (const auto score : high_scores) {
  high_scores_string = high_scores_string + ", " + std::to_string(score);
}

std::array<uint32_t, 5> high_scores;
// ...
auto comma_fold = [](const std::string &text, uint32_t score) {
  return text + ", " + std::to_string(score);
};
std::string high_scores_string =
    std::accumulate(std::next(high_scores.begin()), high_scores.end(),
                    "High Scores: " + std::to_string(high_scores.front()), comma_fold);