Поделитесь своими знаниями, ответьте на вопрос:
Teacher’s day is celebrated each year on the first sunday of the october. given natural number n, that represents the number of the year. output the date of the teacher’s day of that year. example: input: 2010output3с++
#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include <ctime>
using namespace std;
int main()
{
int y;
char buffer[80];
cout << "Year = ";
cin >> y;
tm time_in;
time_in.tm_sec = 0; // second
time_in.tm_min = 0; // minute
time_in.tm_hour = 0; // hour
time_in.tm_mday = 1; // 1-based day
time_in.tm_mon = 9; // 0-based month
time_in.tm_year = y - 1900; // year since 1900
time_t time_temp = mktime (&time_in); // Convert the local time to a calendar value.
tm* time_out = localtime (&time_temp); // Converts a time_t time value to a tm structure
if (time_out->tm_wday > 0) // if it is not Sunday, go to the next Sunday
time_out->tm_mday += 7 - time_out->tm_wday;
strftime(buffer, 80, "%d.%m.%Y", time_out); // date formatting for output
cout << "\nTeachers day is " << buffer << "\n";
}
Объяснение: explanations in the comments to the program