题解 | #名字的漂亮度#函数式解法

import java.util.Arrays;
import java.util.Comparator;
import java.util.Map;
import java.util.Scanner;
import java.util.function.Function;
import java.util.stream.Collectors;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        while (in.hasNext()) {
            int n = Integer.parseInt(in.nextLine());
            for (int i = 0; i < n; i++) {
                Map<String, Long> map = Arrays.stream(in.nextLine().split("")).collect(
                        Collectors.groupingBy(Function.identity(), Collectors.counting()));
                int beauty = 26;
                int sum = 0;
                for (Long num : map.values().stream().sorted(Comparator.reverseOrder()).collect(Collectors.toList())) {
                    sum += beauty-- * num;
                }
                System.out.println(sum);
            }
        }
    }
}