結果

問題 No.1465 Archaea
ユーザー yakamotoyakamoto
提出日時 2021-04-02 22:39:02
言語 Kotlin
(1.9.10)
結果
AC  
実行時間 252 ms / 2,000 ms
コード長 3,428 bytes
コンパイル時間 14,536 ms
コンパイル使用メモリ 436,452 KB
実行使用メモリ 50,776 KB
最終ジャッジ日時 2023-08-25 16:19:32
合計ジャッジ時間 21,280 ms
ジャッジサーバーID
(参考情報)
judge12 / judge11
このコードへのチャレンジ(β)

テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 225 ms
50,480 KB
testcase_01 AC 224 ms
50,256 KB
testcase_02 AC 230 ms
50,552 KB
testcase_03 AC 223 ms
50,532 KB
testcase_04 AC 224 ms
50,112 KB
testcase_05 AC 223 ms
50,672 KB
testcase_06 AC 224 ms
50,064 KB
testcase_07 AC 218 ms
50,312 KB
testcase_08 AC 226 ms
50,344 KB
testcase_09 AC 222 ms
50,464 KB
testcase_10 AC 222 ms
50,484 KB
testcase_11 AC 220 ms
50,424 KB
testcase_12 AC 222 ms
50,336 KB
testcase_13 AC 229 ms
50,384 KB
testcase_14 AC 225 ms
50,124 KB
testcase_15 AC 222 ms
50,440 KB
testcase_16 AC 244 ms
50,276 KB
testcase_17 AC 248 ms
50,776 KB
testcase_18 AC 247 ms
50,312 KB
testcase_19 AC 252 ms
50,136 KB
testcase_20 AC 232 ms
50,392 KB
testcase_21 AC 239 ms
50,452 KB
testcase_22 AC 233 ms
50,452 KB
testcase_23 AC 229 ms
50,472 KB
権限があれば一括ダウンロードができます
コンパイルメッセージ
Main.kt:136:11: warning: expected performance impact from inlining is insignificant. Inlining works best for functions with parameters of functional types
  private inline fun debug(a: LongArray) {
          ^
Main.kt:140:11: warning: expected performance impact from inlining is insignificant. Inlining works best for functions with parameters of functional types
  private inline fun debug(a: IntArray) {
          ^
Main.kt:144:11: warning: expected performance impact from inlining is insignificant. Inlining works best for functions with parameters of functional types
  private inline fun debug(a: BooleanArray) {
          ^
Main.kt:148:11: warning: expected performance impact from inlining is insignificant. Inlining works best for functions with parameters of functional types
  private inline fun toString(a: BooleanArray) = run{a.map { if (it) 1 else 0 }.joinToString("")}
          ^
Main.kt:150:11: warning: expected performance impact from inlining is insignificant. Inlining works best for functions with parameters of functional types
  private inline fun debugDim(A: Array<LongArray>) {
          ^
Main.kt:157:11: warning: expected performance impact from inlining is insignificant. Inlining works best for functions with parameters of functional types
  private inline fun debugDim(A: Array<IntArray>) {
          ^
Main.kt:164:11: warning: expected performance impact from inlining is insignificant. Inlining works best for functions with parameters of functional types
  private inline fun debugDim(A: Array<BooleanArray>) {
          ^
Main.kt:181:11: warning: expected performance impact from inlining is insignificant. Inlining works best for functions with parameters of functional types
  private inline fun assert(b: Boolean) = run{if (!b) throw AssertionError()}
          ^

ソースコード

diff #

import java.io.BufferedReader
import java.io.InputStream
import java.io.InputStreamReader
import java.lang.AssertionError
import java.util.*
import kotlin.math.abs
import kotlin.math.max
import kotlin.math.min

val MOD = 1_000_000_007

class Solver(stream: InputStream, private val out: java.io.PrintWriter) {
  private val reader = BufferedReader(InputStreamReader(stream), 32768)

  fun solve() {
    val ans = if (solve2()) "YES" else "NO"
    out.println(ans)
  }

  fun solve2(): Boolean {
    val (N, K) = na(2)
    val MAX = kotlin.math.log2(N.toDouble()).toInt()
    val pow2 = IntArray(MAX + 1)
    pow2[0] = 1
    for (i in 1 until pow2.size) {
      pow2[i] = pow2[i - 1] * 2
    }
    debug{"MAX:$MAX"}
    debug(pow2)
    for (i in 0 .. MAX) {
      var k = K - i
      var n = N - pow2[i]
      for (j in i downTo 0) {
        debug{"k:$k n:$n"}
        while (n >= pow2[j]*3 && k > 0) {
          n -= pow2[j]*3
          k--
        }
      }
      if (n == 0 && k >= 0) return true
    }

    return false
  }













































  private val isDebug = try {
    // なんか本番でエラーでる
    System.getenv("MY_DEBUG") != null
  } catch (t: Throwable) {
    false
  }

  private var tokenizer: StringTokenizer? = null
  private fun next(): String {
    while (tokenizer == null || !tokenizer!!.hasMoreTokens()) {
      tokenizer = StringTokenizer(reader.readLine())
    }
    return tokenizer!!.nextToken()
  }

  private fun ni() = next().toInt()
  private fun nl() = next().toLong()
  private fun ns() = next()
  private fun na(n: Int, offset: Int = 0): IntArray {
    return IntArray(n) { ni() + offset }
  }
  private fun nal(n: Int, offset: Int = 0): LongArray {
    val res = LongArray(n)
    for (i in 0 until n) {
      res[i] = nl() + offset
    }
    return res
  }

  private fun na2(n: Int, offset: Int = 0): Array<IntArray> {
    val a  = Array(2){IntArray(n)}
    for (i in 0 until n) {
      for (e in a) {
        e[i] = ni() + offset
      }
    }
    return a
  }

  private inline fun debug(msg: () -> String) {
    if (isDebug) System.err.println(msg())
  }

  /**
   * コーナーケースでエラー出たりするので、debug(dp[1])のように添え字付きの場合はdebug{}をつかうこと
   */
  private inline fun debug(a: LongArray) {
    debug { a.joinToString(" ") }
  }

  private inline fun debug(a: IntArray) {
    debug { a.joinToString(" ") }
  }

  private inline fun debug(a: BooleanArray) {
    debug { toString(a) }
  }

  private inline fun toString(a: BooleanArray) = run{a.map { if (it) 1 else 0 }.joinToString("")}

  private inline fun debugDim(A: Array<LongArray>) {
    if (isDebug) {
      for (a in A) {
        debug(a)
      }
    }
  }
  private inline fun debugDim(A: Array<IntArray>) {
    if (isDebug) {
      for (a in A) {
        debug(a)
      }
    }
  }
  private inline fun debugDim(A: Array<BooleanArray>) {
    if (isDebug) {
      for (a in A) {
        debug(a)
      }
    }
  }

  /**
   * 勝手にimport消されるのを防ぎたい
   */
  private fun hoge() {
    min(1, 2)
    max(1, 2)
    abs(-10)
  }

  private inline fun assert(b: Boolean) = run{if (!b) throw AssertionError()}
  private inline fun assert(b: Boolean, f: () -> String) = run{if (!b) throw AssertionError(f())}
}

fun main() {
  val out = java.io.PrintWriter(System.out)
  Solver(System.`in`, out).solve()
  out.flush()
}
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