#include <iostream>
#include <ctime>
 
int main() {
    // Get the current date
    time_t now = time(0);
    tm *currentTime = localtime(&now);
 
    int currentYear = currentTime->tm_year + 1900;
    int currentMonth = currentTime->tm_mon + 1; // Months are 0-11
    int currentDay = currentTime->tm_mday;
 
    // Input birthdate
    int birthYear, birthMonth, birthDay;
    std::cout << "Enter your birth year (YYYY): ";
    std::cin >> birthYear;
    std::cout << "Enter your birth month (1-12): ";
    std::cin >> birthMonth;
    std::cout << "Enter your birth day (1-31): ";
    std::cin >> birthDay;
 
    // Calculate age
    int age = currentYear - birthYear;
 
    // Adjust age if the birthday hasn't occurred yet this year
    if (currentMonth < birthMonth || (currentMonth == birthMonth && currentDay < birthDay)) {
        age--;
    }
 
    // Output the result
    std::cout << "You are " << age << " years old." << std::endl;
 
    return 0;
}
 

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