import java.util.*;
public class Main {

    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        Map<Integer,Integer> map = new HashMap<>();
        int max = -1;
        int max_num = -1;
        for(int i = 0 ; i < n ; i++) {
            int num = sc.nextInt();
            int score = sc.nextInt();
            if(map.containsKey(num)) {
                map.put(num, map.get(num) + score);
            } else {
                map.put(num, score);
            }
            if(max < map.get(num)) {
                max = map.get(num);
                max_num = num;
            }
        }
        System.out.println(max_num + " " + max);
    }
}

以上代码,在牛客网可以通过,但是在官网只能部分正确。因为官网限制在200ms alt alt 目前没想到改进方法,以后想到了再来改进