import java.util.ArrayList; import java.util.List; class Solution { public int[] solution(int[] answers) { int[] stu1 = { 1, 2, 3, 4, 5 }; int[] stu2 = { 2, 1, 2, 3, 2, 4, 2, 5 }; int[] stu3 = { 3, 3, 1, 1, 2, 2, 4, 4, 5, 5 }; int count[] = {0,0,0}; for (int i = 0; i < answers.length; i++) { if (answers[i] == stu1[i%stu1.length]) { count[0]++; } if (answers[i] == stu2[i%stu2.length]) { count[1]+..