結果

問題 No.1463 Hungry Kanten
ユーザー yakamotoyakamoto
提出日時 2021-04-02 22:20:17
言語 Kotlin
(1.9.23)
結果
AC  
実行時間 684 ms / 2,000 ms
コード長 3,317 bytes
コンパイル時間 16,993 ms
コンパイル使用メモリ 461,888 KB
実行使用メモリ 130,896 KB
最終ジャッジ日時 2024-06-06 09:24:02
合計ジャッジ時間 24,499 ms
ジャッジサーバーID
（参考情報） 		judge4 / judge5
このコードへのチャレンジ
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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 270 ms
56,680 KB
testcase_01 AC 271 ms
56,748 KB
testcase_02 AC 365 ms
69,996 KB
testcase_03 AC 587 ms
121,380 KB
testcase_04 AC 265 ms
50,948 KB
testcase_05 AC 684 ms
130,896 KB
testcase_06 AC 272 ms
50,704 KB
testcase_07 AC 270 ms
50,800 KB
testcase_08 AC 276 ms
50,636 KB
testcase_09 AC 269 ms
50,820 KB
testcase_10 AC 275 ms
51,040 KB
testcase_11 AC 277 ms
51,144 KB
testcase_12 AC 277 ms
51,800 KB
testcase_13 AC 270 ms
51,220 KB
testcase_14 AC 321 ms
55,124 KB
testcase_15 AC 283 ms
51,528 KB
testcase_16 AC 343 ms
63,396 KB
testcase_17 AC 393 ms
84,728 KB
testcase_18 AC 341 ms
62,396 KB
testcase_19 AC 534 ms
103,884 KB
testcase_20 AC 591 ms
117,236 KB
testcase_21 AC 273 ms
51,080 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:128:11: 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:132:11: 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: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: BooleanArray) {
          ^
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 toString(a: BooleanArray) = run{a.map { if (it) 1 else 0 }.joinToString("")}
          ^
Main.kt:142:11: 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:149:11: 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:156:11: 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:173:11: 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.math.BigInteger
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 (N, K) = na(2)
    val A = na(N)
    val ans = mutableListOf<BigInteger>()
    for (bit in 0 until (1 shl N)) {
      if (Integer.bitCount(bit) < K) continue

      var sum = 0L
      var prod = BigInteger.ONE
      for (i in 0 until N) {
        if (bit shr i and 1 == 1) {
          sum += A[i]
          prod = prod.times(BigInteger.valueOf(A[i].toLong()))
        }
      }
      ans += BigInteger.valueOf(sum)
      ans += prod
    }

    out.println(ans.distinct().size)
  }













































  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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