Compile and run the following code, then answer the questions: (a) What is stored in "matches"? (b) What does "\d" mean? #include #include #include using namespace std; int main() {regex pattern{R"(\d\d)"}; string to_search = "I would like the number 98" " to be found and printed, thanks."; smatch matches; regex_search(to_search, matches, pattern); for (auto match: matches) {cout