蓝桥杯c组--跑步锻炼

public class Demo {

    public static void main(String[] args) {
        int years = 2000;//年
        int month = 1;//月
        int days = 1;//日
        int weekDay = 6;//星期
        int yearsDay;//用于判断闰年平年天数
        int monthDay = 0;//用于记录每个月的天数
        int meter = 0;
        boolean loop = true;
        
        while(loop) {
            //判断闰年 平年
            if ((years % 4 == 0 && years % 100 != 0) || years % 400 == 0) {
                yearsDay = 366;
            }else {
                yearsDay = 365;
            }
            
            for(int i = 1 ;;i++) {
                //10月1日包含 所以是10月2日判定退出
                if (years == 2020 && month == 10 && days == 2) {
                    loop = false;
                    break;
                }
                switch (month) {
                //每个月的天数
                    case 2:
                        //闰年 平年二月天数判断
                        if(yearsDay == 366) {
                            monthDay = 29;
                        }else {
                            monthDay = 28;
                        }
                        break;
                    case 4:
                    case 6:
                    case 9:
                    case 11:
                        monthDay = 30;
                        break;
                    case 1:
                    case 3:
                    case 5:
                    case 7:
                    case 8:
                    case 10:
                    case 12:
                        monthDay = 31;
                        break;
                }
                //每周一 或者 月初 
                if(weekDay == 1 || days == 1) {
                    meter += 2;
                    weekDay++;
                    days++;
                }else {
                    meter += 1;
                    weekDay++;
                    days++;
                }
                //月增加 月的天数变为1
                if(days > monthDay) {
                    days = 1;
                    month++;
                }
                //星期刷新                
                if(weekDay > 7) {
                    weekDay = 1;
                }
                //年增加 月刷新
                if(i == yearsDay) {
                    years++;
                    month = 1;
                    break;
                }                
            }
        }
        System.out.println(meter);
    }
}