3052 나머지 JAVA

정말 쉬운 문제이므로, 설명은 생략하겠다.

 

https://www.acmicpc.net/problem/3052

 

import java.io.*;
public class M3052 {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

        boolean[] diff = new boolean[42];
        int count = 0;

        for(int i = 0; i < 10; i++)
            diff[Integer.parseInt(br.readLine()) % 42] = true;

        for(boolean yes : diff) {
            if (yes) count++;
        }

        System.out.println(count);
    }
}