[Programmers] 모의고사

https://programmers.co.kr/learn/courses/30/lessons/42840?language=javascript

코딩테스트 연습 - 모의고사

 

패턴대로 완전탐색을 돌리면 풀리는 문제이다.

 

function solution(answers) {
    var answer = [];

    let students = [0,0,0];
    let pattern = [
      [1,2,3,4,5],
        [2,1,2,3,2,4,2,5],
        [3,3,1,1,2,2,4,4,5,5]
    ];
    for(let answer_index=0; answer_index<answers.length; ++answer_index){
        for(let student_index=0;student_index<students.length;student_index++){
            if( answers[answer_index] === pattern[student_index][ answer_index%(pattern[student_index].length)] ){
                students[student_index]++;
            }
        }
    }

    for(let student=0; student<students.length; student++){
        if(students[student]===Math.max.apply(null, students)){
            answer.push(student+1);
        }
    }

    return answer;
}