kimji1

// java 8 이상에서 현재 시간에 맞는 각 타임존 별 시간 얻기
  val pattern = DateTimeFormatter.ofPattern("HH:mm:ss")

  val seoul = ZonedDateTime.now()
  println(seoul.format(pattern))

  val utc = seoul.withZoneSameInstant(ZoneOffset.UTC)
  println(utc.format(pattern))

  val vancouver = utc.withZoneSameInstant(ZoneId.of("America/Vancouver"))

kimji1

import java.io.*
import java.math.*
import java.security.*
import java.text.*
import java.util.*
import java.util.concurrent.*
import java.util.function.*
import java.util.regex.*
import java.util.stream.*
import kotlin.collections.*

kimji1

fun pickingNumbers(a: Array<Int>): Int {
    var ret = Int.MIN_VALUE
    val map = hashMapOf<Int, Int>()
    a.forEach { i ->
        map[i] = a.filter { it == i }.size
    }

    for (i in map.keys) {
        val value = map[i]!!.plus(map.getOrDefault(i - 1, 0))
        if (value > ret) {

kimji1

val Int.dp: Int 
   get() = (this / Resources.getSystem().displayMetrics.density).toInt()
val Int.px: Int
   get() = (this * Resources.getSystem().displayMetrics.density).toInt()

kimji1

fun main() {
	println(maxSubArray(intArrayOf(-2,1,-3,4,-1,2,1,-5,4)))
}

fun maxSubArray(nums: IntArray): Int {
	var currentMax = nums[0]
	var max = nums[0]

	for (i in 1 until nums.size) {
	    currentMax = Math.max(nums[i], nums[i]+currentMax)

kimji1

class Solution {
    fun solution(arrayParam: IntArray, targetParam: Int): IntArray {
        val map = mutableMapOf<Int, Int>()
        arrayParam.forEachIndexed { index, i ->
            val diff = targetParam - i
            map[diff]?.let {
                return arrayOf(it, index).toIntArray()
            }
            map[i] = index
        }

kimji1

fun main() {
    println(solution(intArrayOf(-6, -91, 1011, -100, 84, -22, 0, 1, 473)))
}

fun solution(A: IntArray): Int {
    val oneDigits = A.filter { it < 10 && it > -10 }
    var max = oneDigits[0]
    oneDigits.forEach {
        if (it > max) {
            max = it

kimji1

fun main() {
    println(solution(28))
    println(solution(734))
    println(solution(1990))
    println(solution(1000))
}

fun solution(N: Int): Int {
    val target = sumOfDisassembledN(N)
    var n = N

kimji1

fun main() {
    println(solution("azABaabza"))
    println(solution("ABcabbCa"))
    println(solution("azABaabza"))
    println(solution("CATattac"))
    println(solution("TacoCat"))
    println(solution("Madam"))
    println(solution("AcZCbaBz"))
    println(solution("aZABcabbCa"))
}

kimji1

fun main() {
    println(solution("azABaabza"))
    println(solution("ABcabbCa"))
    println(solution("azABaabza"))
    println(solution("CATattac"))
    println(solution("TacoCat"))
    println(solution("Madam"))
    println(solution("AcZCbaBz"))
    println(solution("aZABcabbCa"))
}