[백준] 10707번 : 수도요금 - Kotlin(코틀린)

https://www.acmicpc.net/problem/10707

import java.util.*
fun main(args: Array<String>) {
    val s=Scanner(System.`in`)
    var a=s.nextInt()
    var b=s.nextInt()
    var c=s.nextInt()
    var d=s.nextInt()
    var p=s.nextInt()
    var sum=p*a
    var sum1:Int
    if(p<=c) sum1=b
    else sum1=b+(p-c)*d
    print(Math.min(sum,sum1))
}