網易2018春招筆試編程題:牛牛找工作

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

/**
 * Created by 莫文龍 on 2018/3/27.
 */
public class Main {
    public static void main(String[] args) throws Exception {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        String s1 = br.readLine();
        String[] split = s1.split(" ");
        HashMap<Integer, Integer> map = new HashMap<>();
        ArrayList<Integer> list = new ArrayList<>();
        for (int i = 0 ; i < Integer.parseInt(split[0]) ; i ++) {
            String sn = br.readLine();
            //報酬爲key
            map.put(Integer.parseInt(sn.split(" ")[1]),Integer.parseInt(sn.split(" ")[0]));
        }
        String s = br.readLine();
        String[] split1 = s.split(" ");
        for (int i = 0 ; i < split1.length ; i ++) list.add(Integer.parseInt(split1[i]));
        //比較
        for (int i = 0 ; i < list.size() ; i ++) {
            //工作能力
            Integer integer = list.get(i);
            Set<Integer> integers = map.keySet();
            //最大工資
            int max = 0;
            //key是薪資，value是難度
            for (Integer iii :integers) {
                if (map.get(iii) <= integer && iii > max) max = iii;
            }
            System.out.println(max);
            max = 0;
        }
    }
}