Problem Solution/Programmers

[ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค/JS] ๊ฐ€์žฅ ํฐ ์ˆ˜ ์ฐพ๊ธฐ

yuri lee 2023. 9. 25. 22:35
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Problem Description

์ •์ˆ˜ ๋ฐฐ์—ด array๊ฐ€ ๋งค๊ฐœ๋ณ€์ˆ˜๋กœ ์ฃผ์–ด์งˆ ๋•Œ, ๊ฐ€์žฅ ํฐ ์ˆ˜์™€ ๊ทธ ์ˆ˜์˜ ์ธ๋ฑ์Šค๋ฅผ ๋‹ด์€ ๋ฐฐ์—ด์„ return ํ•˜๋„๋ก solution ํ•จ์ˆ˜๋ฅผ ์™„์„ฑํ•ด๋ณด์„ธ์š”.

 

Restrictions.

  • 1 ≤ array์˜ ๊ธธ์ด ≤ 100
  • 0 ≤ array ์›์†Œ ≤ 1,000
  • array์— ์ค‘๋ณต๋œ ์ˆซ์ž๋Š” ์—†์Šต๋‹ˆ๋‹ค.

 

Input/Output Example

  • ์ž…์ถœ๋ ฅ ์˜ˆ #1 1, 8, 3 ์ค‘ ๊ฐ€์žฅ ํฐ ์ˆ˜๋Š” 8์ด๊ณ  ์ธ๋ฑ์Šค 1์— ์žˆ์Šต๋‹ˆ๋‹ค.
  • ์ž…์ถœ๋ ฅ ์˜ˆ #2  9, 10, 11, 8 ์ค‘ ๊ฐ€์žฅ ํฐ ์ˆ˜๋Š” 11์ด๊ณ  ์ธ๋ฑ์Šค 2์— ์žˆ์Šต๋‹ˆ๋‹ค.

 

My solution

function solution(array) {
    var answer = [];
    answer.push(Math.max(...array))
    answer.push(array.indexOf(Math.max(...array)))
    return answer;
}

 

Another solutions

function solution(array) {
    let max = Math.max(...array);
    return [max, array.indexOf(max)];
}

https://school.programmers.co.kr/learn/courses/30/lessons/120899

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

 

Array.prototype.indexOf() - JavaScript | MDN

indexOf() ๋ฉ”์„œ๋“œ๋Š” ๋ฐฐ์—ด์—์„œ ์ง€์ •๋œ ์š”์†Œ๋ฅผ ์ฐพ์„ ์ˆ˜ ์žˆ๋Š” ์ฒซ ๋ฒˆ์งธ ์ธ๋ฑ์Šค๋ฅผ ๋ฐ˜ํ™˜ํ•˜๊ณ  ์กด์žฌํ•˜์ง€ ์•Š์œผ๋ฉด -1์„ ๋ฐ˜ํ™˜ํ•ฉ๋‹ˆ๋‹ค.

developer.mozilla.org

 

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