Moments of growth

[내 코드] class Solution { fun solution(absolutes: IntArray, signs: BooleanArray): Int { var answer: Int = 0 for(i in 0 until signs.size){ if(signs[i] == true){ answer += absolutes[i] }else answer -= absolutes[i] } return answer } } [다른 사람 풀이] class Solution { fun solution(absolutes: IntArray, signs: BooleanArray) = absolutes.foldIndexed(0) { idx, acc, num -> acc + if (signs[idx]) num else -num } }