모의고사

이문제는 나머지를 구하여 해당 번호의 답을 찾아내는것이 관건이었던 것 같다.

 

 

 

 

import java.util.*; class Solution {     public int[] solution(int[] answers) {                  int[] one = {1,2,3,4,5};         int[] two = {2,1,2,3,2,4,2,5};         int[] three = {3,3,1,1,2,2,4,4,5,5};         int[] score = {0,0,0};         for(int i=0; i<answers.length; i++){             if(one[i%one.length] == answers[i]){                 score[0] ++;             }             if(two[i%two.length] == answers[i]){                 score[1] ++;             }             if(three[i%three.length] == answers[i]){                 score[2] ++;             }         }                  ArrayList<Integer> list = new ArrayList();         int max = Math.max(score[2],Math.max(score[0],score[1]));         for(int i=0; i<score.length; i++){             if(max == score[i]){                 list.add(i+1);             }         }        int[] answer = new int[list.size()];         for(int i=0; i<list.size(); i++){             answer[i] = list.get(i) ;         }                  return answer;     } }