package New2013;

import java.util.Calendar;

public class n1 {
    public static void main(String[] args) {
        //建立日历
        Calendar ca=Calendar.getInstance();
        for (int year = 1999; year < 10000; year+=100) {
            ca.set(Calendar.YEAR,year);
            ca.set(Calendar.MARCH,11);
            ca.set(Calendar.DAY_OF_MONTH,31);
            if(ca.get(Calendar.DAY_OF_WEEK)==1){
                System.out.println(ca.get(Calendar.YEAR));
                break;
            }
        }
    }
}

package New2013;

public class n2 {
    public static void main(String[] args) {
        int num = n(0, 0);
        System.out.println(num);
    }

    private static int n(int i, int j) {
        if(i==3||j==4)return 1;
        return n(i+1,j)+n(i,j+1);
    }
}