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모의고사

Solution​

function solution(answers) {
  // 각 사람 찍기 패턴
  const { firstPattern, secondPattern, thirdPattern } = {
    firstPattern: [1, 2, 3, 4, 5],
    secondPattern: [2, 1, 2, 3, 2, 4, 2, 5],
    thirdPattern: [3, 3, 1, 1, 2, 2, 4, 4, 5, 5],
  };

  // 종합할 변수 정의
  const scoreList = Array(3).fill(0);

  // 각 사람 채점
  answers.forEach((answer, idx) => {
    if (answer === firstPattern[idx % firstPattern.length]) scoreList[0] += 1;
    if (answer === secondPattern[idx % secondPattern.length]) scoreList[1] += 1;
    if (answer === thirdPattern[idx % thirdPattern.length]) scoreList[2] += 1;
  });

  // 1등 점수 구한 뒤 누가 일등인지 판별
  const topScore = Math.max(...scoreList);
  return scoreList.reduce((acc, curScore, idx) => {
    if (curScore === topScore) acc.push(idx + 1);

    return acc;
  }, []);
}

Review​

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References​