| 12345678910111213141516171819 | #include <iostream>#include <nlohmann/json.hpp>using json = nlohmann::json;int main(){    // create JSON arrays    json j_no_init_list = json::array();    json j_empty_init_list = json::array({});    json j_nonempty_init_list = json::array({1, 2, 3, 4});    json j_list_of_pairs = json::array({ {"one", 1}, {"two", 2} });    // serialize the JSON arrays    std::cout << j_no_init_list << '\n';    std::cout << j_empty_init_list << '\n';    std::cout << j_nonempty_init_list << '\n';    std::cout << j_list_of_pairs << '\n';}
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