题目描述

多变少 也是多变成avg

贪心

import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        int n = scanner.nextInt();

        ArrayList<Integer>[] w = new ArrayList[10];
        for (int i = 0; i < 10; i++) {
            w[i] = new ArrayList<>();
        }

        for (int i = 0; i < n; i++) {
            int a = scanner.nextInt();
            int b = scanner.nextInt();
            w[a].add(b);
        }

        long res = 0;
        int avg = n / 10;
        for (int i = 0; i < 10; i++) {
            if (w[i].size() > avg) {
                w[i].sort((x, y) -> x - y);
                for (int j = 0; j < w[i].size() - avg; j++) {
                    res += w[i].get(j);
                }
            }
        }

        System.out.println(res);
    }
}