[프로그래머스_구현] 모의고사

문제

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

코딩테스트 연습 - 모의고사

 

코드

function solution(answers) {
    let max = 0;
    let answer = [];
    
    let patterns = [
        [1,2,3,4,5],
        [2,1,2,3,2,4,2,5],
        [3,3,1,1,2,2,4,4,5,5]
    ];
    
    let count = [0,0,0];
    
    for( let i = 0; i < answers.length; i++ ) {
        
        if(answers[i] === patterns[0][i%5])
            count[0]++;
        
        if(answers[i] === patterns[1][i%8])
            count[1]++;
        
        if(answers[i] === patterns[2][i%10])
            count[2]++;
    }

    max = Math.max(count[0], count[1], count[2]);
    
    
    for( let j = 0; j < count.length; j++ ) {
        
        if ( max === count[j] )
            answer.push(j+1);
        
    }
    
    return answer;
}