[프로그래머스] 모의고사

import java.util.*;
class Solution {
    public ArrayList<Integer> solution(int[] answers) {
        ArrayList<Integer> answer = new ArrayList<>();
        
        int[] student1 = {1, 2, 3, 4, 5};
        int[] student2 = {2, 1, 2, 3, 2, 4, 2, 5};
        int[] student3 = {3, 3, 1, 1, 2, 2, 4, 4, 5, 5};
        
        int[] scores = new int[3];
        
        
        for(int i=0; i<answers.length; i++){
            if(student1[i%5] == answers[i]) scores[0]++;
            if(student2[i%8]== answers[i]) scores[1]++;
            if(student3[i%10] == answers[i]) scores[2]++;
        }
        
        int max = Math.max(scores[0], Math.max(scores[1], scores[2]));
        
        for(int i=0; i<3; i++){
            if(max == scores[i]){
                answer.add(i+1);
            }
        }

        
        return answer;
    }
}