Problem Solution/Programmers

[ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค/JS] ์ง์ˆ˜๋Š” ์‹ซ์–ด์š”

yuri lee 2023. 9. 12. 00:08
๋ฐ˜์‘ํ˜•

Problem Description

์ •์ˆ˜ n์ด ๋งค๊ฐœ๋ณ€์ˆ˜๋กœ ์ฃผ์–ด์งˆ ๋•Œ, n ์ดํ•˜์˜ ํ™€์ˆ˜๊ฐ€ ์˜ค๋ฆ„์ฐจ์ˆœ์œผ๋กœ ๋‹ด๊ธด ๋ฐฐ์—ด์„ returnํ•˜๋„๋ก solution ํ•จ์ˆ˜๋ฅผ ์™„์„ฑํ•ด์ฃผ์„ธ์š”.

 

Restrictions

  • 1 ≤ n ≤ 100

 

Input/Output Example

  • ์ž…์ถœ๋ ฅ ์˜ˆ #1 10 ์ดํ•˜์˜ ํ™€์ˆ˜๊ฐ€ ๋‹ด๊ธด ๋ฐฐ์—ด [1, 3, 5, 7, 9]๋ฅผ returnํ•ฉ๋‹ˆ๋‹ค.
  • ์ž…์ถœ๋ ฅ ์˜ˆ #2 15 ์ดํ•˜์˜ ํ™€์ˆ˜๊ฐ€ ๋‹ด๊ธด ๋ฐฐ์—ด [1, 3, 5, 7, 9, 11, 13, 15]๋ฅผ returnํ•ฉ๋‹ˆ๋‹ค.

 

My solution

function solution(n) {
    let array = [];
    let i
    for (i = 0; i <= n; i++) {
        array.push(i)
    }
    return array.filter((x) => x%2 == 1)
}

 

Another solutions

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

    for (let i = 1; i<=n; i+=2) answer.push(i)

    return answer;
}
const array = Array.from({ length: n + 1 }, (_, i) => i);

 


https://school.programmers.co.kr/learn/courses/30/lessons/120813

 

ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค

์ฝ”๋“œ ์ค‘์‹ฌ์˜ ๊ฐœ๋ฐœ์ž ์ฑ„์šฉ. ์Šคํƒ ๊ธฐ๋ฐ˜์˜ ํฌ์ง€์…˜ ๋งค์นญ. ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค์˜ ๊ฐœ๋ฐœ์ž ๋งž์ถคํ˜• ํ”„๋กœํ•„์„ ๋“ฑ๋กํ•˜๊ณ , ๋‚˜์™€ ๊ธฐ์ˆ  ๊ถํ•ฉ์ด ์ž˜ ๋งž๋Š” ๊ธฐ์—…๋“ค์„ ๋งค์นญ ๋ฐ›์œผ์„ธ์š”.

programmers.co.kr

https://developer.mozilla.org/ko/docs/Web/JavaScript/Reference/Global_Objects/Array/from

 

Array.from() - JavaScript | MDN

Array.from() ๋ฉ”์„œ๋“œ๋Š” ์œ ์‚ฌ ๋ฐฐ์—ด ๊ฐ์ฒด(array-like object)๋‚˜ ๋ฐ˜๋ณต ๊ฐ€๋Šฅํ•œ ๊ฐ์ฒด(iterable object)๋ฅผ ์–•๊ฒŒ ๋ณต์‚ฌํ•ด ์ƒˆ๋กœ์šดArray ๊ฐ์ฒด๋ฅผ ๋งŒ๋“ญ๋‹ˆ๋‹ค.

developer.mozilla.org

 

๋ฐ˜์‘ํ˜•