ํ‹ฐ์Šคํ† ๋ฆฌ ๋ทฐ

๋ฌธ์ œ ์„ค๋ช…

์ˆ˜ํฌ์ž๋Š” ์ˆ˜ํ•™์„ ํฌ๊ธฐํ•œ ์‚ฌ๋žŒ์˜ ์ค€๋ง์ž…๋‹ˆ๋‹ค. ์ˆ˜ํฌ์ž ์‚ผ์ธ๋ฐฉ์€ ๋ชจ์˜๊ณ ์‚ฌ์— ์ˆ˜ํ•™ ๋ฌธ์ œ๋ฅผ ์ „๋ถ€ ์ฐ์œผ๋ ค ํ•ฉ๋‹ˆ๋‹ค. ์ˆ˜ํฌ์ž๋Š” 1๋ฒˆ ๋ฌธ์ œ๋ถ€ํ„ฐ ๋งˆ์ง€๋ง‰ ๋ฌธ์ œ๊นŒ์ง€ ๋‹ค์Œ๊ณผ ๊ฐ™์ด ์ฐ์Šต๋‹ˆ๋‹ค.

  • 1๋ฒˆ ์ˆ˜ํฌ์ž๊ฐ€ ์ฐ๋Š” ๋ฐฉ์‹: 1, 2, 3, 4, 5, 1, 2, 3, 4, 5, ...
  • 2๋ฒˆ ์ˆ˜ํฌ์ž๊ฐ€ ์ฐ๋Š” ๋ฐฉ์‹: 2, 1, 2, 3, 2, 4, 2, 5, 2, 1, 2, 3, 2, 4, 2, 5, ...
  • 3๋ฒˆ ์ˆ˜ํฌ์ž๊ฐ€ ์ฐ๋Š” ๋ฐฉ์‹: 3, 3, 1, 1, 2, 2, 4, 4, 5, 5, 3, 3, 1, 1, 2, 2, 4, 4, 5, 5, ...

1๋ฒˆ ๋ฌธ์ œ๋ถ€ํ„ฐ ๋งˆ์ง€๋ง‰ ๋ฌธ์ œ๊นŒ์ง€์˜ ์ •๋‹ต์ด ์ˆœ์„œ๋Œ€๋กœ ๋“ค์€ ๋ฐฐ์—ด answers๊ฐ€ ์ฃผ์–ด์กŒ์„ ๋•Œ, ๊ฐ€์žฅ ๋งŽ์€ ๋ฌธ์ œ๋ฅผ ๋งžํžŒ ์‚ฌ๋žŒ์ด ๋ˆ„๊ตฌ์ธ์ง€ ๋ฐฐ์—ด์— ๋‹ด์•„ return ํ•˜๋„๋ก solution ํ•จ์ˆ˜๋ฅผ ์ž‘์„ฑํ•ด์ฃผ์„ธ์š”.

์ œํ•œ ์กฐ๊ฑด

์‹œํ—˜์€ ์ตœ๋Œ€ 10,000 ๋ฌธ์ œ๋กœ ๊ตฌ์„ฑ๋˜์–ด์žˆ์Šต๋‹ˆ๋‹ค.
๋ฌธ์ œ์˜ ์ •๋‹ต์€ 1, 2, 3, 4, 5์ค‘ ํ•˜๋‚˜์ž…๋‹ˆ๋‹ค.
๊ฐ€์žฅ ๋†’์€ ์ ์ˆ˜๋ฅผ ๋ฐ›์€ ์‚ฌ๋žŒ์ด ์—ฌ๋Ÿฟ์ผ ๊ฒฝ์šฐ, returnํ•˜๋Š” ๊ฐ’์„ ์˜ค๋ฆ„์ฐจ์ˆœ ์ •๋ ฌํ•ด์ฃผ์„ธ์š”.

์ž…์ถœ๋ ฅ ์˜ˆ

answers  return
[1,2,3,4,5]  [1]
[1,3,2,4,2]  [1,2,3]





 

function solution(answers) {
    const a = [1, 2, 3, 4, 5];
    const b = [2, 1, 2, 3, 2, 4, 2, 5];
    const c = [3, 3, 1, 1, 2, 2, 4, 4, 5, 5,];

    const score = (student) => answers.filter((v, i) => v === student[(i) % student.length]).length;


    const scores = [score(a), score(b), score(c)];
    const max = Math.max(...scores);

    const result = [];

    scores.forEach((v, i) => {
        if (max === v) {
            result.push(i + 1);
        }
    });

    return result;
};

 

๋Œ“๊ธ€