๋ณธ๋ฌธ ๋ฐ”๋กœ๊ฐ€๊ธฐ
Kotlin/Programmers Algorithm

[ํ”„๋กœ๊ทธ๋ž˜๋จธ์Šค - ์ฝ”ํ‹€๋ฆฐ] ๋‘ ์ •์ˆ˜ ์‚ฌ์ด์˜ ํ•ฉ #12912

by eun.24k 2023. 10. 24.

#12912

๐ŸŽ„ Question ?

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

class Solution {
    fun solution(a: Int, b: Int): Long {
        var answer: Long = 0
        return answer
    }
}

๐Ÿงฉ Thought Process

  1. 3์—์„œ 5๊นŒ์ง€ for ๋ฌธ ์‚ฌ์šฉ
  2. answer์— for๋ฌธ์— ๋“ค์–ด๊ฐ€๋Š” ์ธ๋ฑ์Šค ๊ฐ’์„ ์ˆœ์ฐจ์ ์œผ๋กœ ๋”ํ•˜๊ธฐ
  3. a ๊ฐ€ b ๋ณด๋‹ค ํด๋•Œ๋ž‘ b๊ฐ€ a ๋ณด๋‹ค ํด ๋•Œ๋กœ ๊ฒฝ์šฐ ๋‚˜๋ˆ„๊ธฐ

 

๐ŸŽ€ Answer

class Solution {
    fun solution(a: Int, b: Int): Long {
        var answer: Long = 0
        
        if (a <= b) {
            for (i in a..b) {
                answer += i
            }
        } else if (a > b) {
            for (i in b..a) {
                answer += i
            }
        } 

        return answer
    }
}

 

๐ŸŽ Result

 

 

๐Ÿ† Comment

๊น”๋”. ์ค‘๊ฐ„์ค‘๊ฐ„์— ์žˆ๋Š” ์‰ฌ์šด ๋ฌธ์ œ๋“ค์ด ์‚ฌ๋ง‰์—์„œ ๋ฐœ๊ฒฌํ•œ ์˜ค์•„์‹œ์Šค ๊ฐ™๋‹น ํžˆํžˆ