根据以下已知条件写出计算请假天数的最优算法 1、年度日历数据表结构如下 1:工作日 2:法定假日 3:周末假日 2、每日工作时间设定数据如下 上午上班时间:08:30 上午下班时间:12:30 下午上班:13:30 下午下班时间:17:30 3、问题:根据输入的开始结束时间，计算请假天数 例阳:2022-09-3013:30:00至2022-10-1517:30:00 用java实现

好的，根据您的要求，我将按照您给出的条件来计算请假天数，下面是Java语言实现的最优算法：

import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.temporal.ChronoUnit;

public class LeaveDaysCalculator {

    // 年度日历数据表结构如下:
    // 1:工作日 2:法定假日 3:周末假日
    private static int[][] calendar = {
            {1, 1, 3, 1, 1, 1, 2, 2, 3, 1, 1, 1, 2, 2, 3, 1, 1, 1, 2, 2, 3, 1, 1, 1, 2, 2, 3, 1, 1, 2, 2},
            {2, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3},
            {3, 3, 1, 1, 1, 1, 1, 1, 1, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 3},
            {3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3},
            {3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3},
            {3, 3, 1, 1, 1, 1, 1, 1, 1, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 3},
            {2, 2, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3}
    };

    // 每日工作时间设定数据如下
    // 上午上班时间:08:30 上午下班时间:12:30 下午上班:13:30 下午下班时间:17:30
    private static LocalTime MORNING_START_TIME = LocalTime.of(8, 30);
    private static LocalTime MORNING_END_TIME = LocalTime.of(12, 30);
    private static LocalTime AFTERNOON_START_TIME = LocalTime.of(13, 30);
    private static LocalTime AFTERNOON_END_TIME = LocalTime.of(17, 30);

    public static int calculateLeaveDays(String startDateStr, String endDateStr) {
        LocalDateTime startDate = LocalDateTime.parse(startDateStr);
        LocalDateTime endDate = LocalDateTime.parse(endDateStr);

        int leaveDays = 0;
        LocalDateTime currentDateTime = startDate;

        while (currentDateTime.isBefore(endDate)) {
            LocalDate currentDate = currentDateTime.toLocalDate();
            LocalTime currentTime = currentDateTime.toLocalTime();
            int dayOfWeek = currentDate.getDayOfWeek().getValue();
            int dayOfMonth = currentDate.getDayOfMonth();
            int month = currentDate.getMonthValue();
            int year = currentDate.getYear();

            int calendarType = calendar[dayOfWeek - 1][dayOfMonth - 1];
            boolean isWeekendHoliday = calendarType == 3;
            boolean isLegalHoliday = calendarType == 2;

            // 如果当前时间是工作时间，则该天请假天数加1
            if (!isWeekendHoliday && !isLegalHoliday &&
                    ((currentTime.isAfter(MORNING_START_TIME) && currentTime.isBefore(MORNING_END_TIME)) ||
                            (currentTime.isAfter(AFTERNOON_START_TIME) && currentTime.isBefore(AFTERNOON_END_TIME)))) {
                leaveDays++;
            }

            currentDateTime = currentDateTime.plus(30, ChronoUnit.MINUTES);

            // 如果当前时间是开工第一天的上午或者最后一天的下午，要减去半天的假期时间
            if ((currentDate.isEqual(startDate.toLocalDate()) && currentTime.isAfter(AFTERNOON_START_TIME)) ||
                    (currentDate.isEqual(endDate.toLocalDate()) && currentTime.isBefore(MORNING_END_TIME))) {
                leaveDays -= 0.5;
            }
        }

        return leaveDays;
    }

    public static void main(String[] args) {
        String startDateStr = "2022-09-30T13:30:00";
        String endDateStr = "2022-10-15T17:30:00";

        int leaveDays = calculateLeaveDays(startDateStr, endDateStr);
        System.out.println("请假天数：" + leaveDays);
    }
}

以上便是计算请假天数的最优算法的Java语言实现。如有问题，请随时联系我。