题解 | #计算日期到天数转换#

import java.time.LocalDate;
import java.util.Scanner;

/**
 * @author hll[yellowdradra@foxmail.com]
 * @since 2023-03-24 14:30
 **/
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int year = in.nextInt();
        int month = in.nextInt();
        int day = in.nextInt();
        System.out.println(LocalDate.of(year, month, day).getDayOfYear());
        // System.out.println(dayOfYear(year, month, day));
    }

    // public static int dayOfYear(int year, int month, int day) {
    //     return firstDayOfYear(isLeapYear(year), month) + day - 1;
    // }

    // public static boolean isLeapYear(long prolepticYear) {
    //     return ((prolepticYear & 3) == 0)
    //             && ((prolepticYear % 100) != 0 || (prolepticYear % 400) == 0);
    // }

    // public static int firstDayOfYear(boolean leapYear, int month) {
    //     int leap = leapYear ? 1 : 0;
    //     return switch (month) {
    //         case 1 -> 1;
    //         case 2 -> 32;
    //         case 3 -> 60 + leap;
    //         case 4 -> 91 + leap;
    //         case 5 -> 121 + leap;
    //         case 6 -> 152 + leap;
    //         case 7 -> 182 + leap;
    //         case 8 -> 213 + leap;
    //         case 9 -> 244 + leap;
    //         case 10 -> 274 + leap;
    //         case 11 -> 305 + leap;
    //         // 12
    //         default -> 335 + leap;
    //     };
    // }

}