[Coding Test] ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค -๋‘ ์ •์ˆ˜ ์‚ฌ์ด์˜ ํ•ฉ-

๐Ÿ“ƒ๋ฌธ์ œ ๋งํฌ

https://school.programmers.co.kr/learn/courses/30/lessons/12912

๐Ÿคจ์ƒ๊ฐํ•˜๊ธฐ

๋ฌธ์ œ ๊ทธ๋Œ€๋กœ ๊ตฌํ˜„

a,b๊ฐ€ ๋Œ€์†Œ ๊ตฌ๋ถ„ ์—†์ด ์ฃผ์–ด์ง„๋‹ค๋Š” ์ ์ด ์‹ ๊ฒฝ ์จ์•ผํ•  ๋ถ€๋ถ„์ธ๋ฐ, ๊ตฌ์กฐ ๋ถ„ํ•ด ํ• ๋‹น์„ ์‚ฌ์šฉํ•˜๋ฉด ์‰ฝ๊ฒŒ ๋‘ ๋ณ€์ˆ˜์˜ ๊ฐ’์„ ๋ฐ”๊ฟ€ ์ˆ˜ ์žˆ๋‹ค.

๐Ÿ˜Ž๋‚ด ํ’€์ด

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function solution(a, b) {
if (a === b) return a
if (b < a) {
;[a, b] = [b, a]
}
let sum = 0
for (let i = a; i <= b; i++) {
sum += i
}
return sum
}