릿코드 1637. Widest Vertical Area Between Two Points Containing No Points 코틀린

그냥 x만빼다가 정렬치고 집합에 넣고,이전거랑 현재거랑 빼서 max값 뽑아낸다음 리턴

정답

import kotlin.math.max

class Solution {
    fun maxWidthOfVerticalArea(points: Array<IntArray>): Int {
        val pointXList=points.asSequence().map { it[0] }.sorted().toSet()
        var max=0
        var prev=-1
        for (i in pointXList){
            if (prev==-1){
                prev=i
                continue
            }
            max=max(i-prev,max)
            prev=i
        }
        println(max)
        return max
    }
}