[프로그래머스] 모의고사

https://programmers.co.kr/learn/courses/30/lessons/42840

코딩테스트 연습 - 모의고사

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Code

function solution(answers) {
    var answers1 = [1, 2, 3, 4, 5];
    var answers2 = [2, 1, 2, 3, 2, 4, 2, 5];
    var answers3 = [3, 3, 1, 1, 2, 2, 4, 4, 5, 5];
    
    var scores = [0, 0, 0];
    for (let idx in answers) {
        const answer = answers[idx];
        
        if (isCollect(answers1, idx, answer)) scores[0]++;
        if (isCollect(answers2, idx, answer)) scores[1]++;
        if (isCollect(answers3, idx, answer)) scores[2]++;
    }
    
    var results = [];
    var maxValue = Math.max(...scores);
    for (let idx = 0;  idx < scores.length; idx++) {
        if (maxValue === scores[idx]) {
            results.push(idx + 1);
        }
    }  
    return results;
}
    
function isCollect(answers, idx, realAnswer) {
    return answers[idx % answers.length] === realAnswer;
}