[백준]3052 : 나머지

 

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {

        Scanner scan = new Scanner(System.in);

        int count = 0;
        int count2[] = new int[42];
        for (int i = 0; i < 10; i++) {
            count2[ scan.nextInt() % 42]++;
        }
       for(int i=0; i<count2.length;i++)
           if(count2[i]!=0)
               count++;
        System.out.println(count);
    }
}