#include <iostream> #include <ctime> // Import the ctime library using namespace std; int main () { // Create the datetime structure and use mktime to fill in the missing members struct tm datetime; datetime.tm_year = 2023 - 1900; // Number of years since 1900 datetime.tm_mon = 12 - 1; // Number of months since January datetime.tm_mday = 17; datetime.tm_hour = 0; datetime.tm_min = 0; datetime.tm_sec = 0; datetime.tm_isdst = -1; mktime(&datetime); string weekdays[] = {"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"}; cout << "The date is on a " << weekdays[datetime.tm_wday]; return 0; }