1028 人口普查 (20分) -java

/**
 * @author ：zxq
 */

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.*;

public class Main {

    public static void main(String[] args) throws IOException {
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        int n = Integer.parseInt(in.readLine());
        long maxAge = 20140907L, minAge = 18140905L;
        String maxName = "", minName = "";
        int cnt = 0;
        for (int i = 0; i < n; i++) {
            String[] strings = in.readLine().split(" ");
            String[] ymd = strings[1].split("/");
            long birth = Long.parseLong(ymd[0]) * 10000 + Long.parseLong(ymd[1]) * 100 + Long.parseLong(ymd[2]);
            if (birth >= 18140906 && birth <= 20140906) {
                cnt++;
                if (birth < maxAge) {
                    maxAge = birth;
                    maxName = strings[0];
                }
                if (birth > minAge) {
                    minAge = birth;
                    minName = strings[0];
                }
            }
        }
        if (cnt > 0) {
            System.out.println(cnt + " " + maxName + " " + minName);
        }else {
            System.out.println("0");
        }
    }
}