题解 | 数独数组

import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        while (in.hasNextInt()) {
            int numberCount = in.nextInt();
            int[] map = new int[10];
            for (int i = 0; i < numberCount; i++) {
                map[in.nextInt()]++;
            }
            String res = "YES";
            for (int i = 1; i <= 9; i++) {
                if (map[i] >= numberCount / 9 && map[i] <= numberCount / 9 + 1) {
                    continue;
                } else {
                    res = "NO";
                    break;
                }
            }
            System.out.println(res);
        }
    }
}