結果

問題 No.1560 majority x majority
ユーザー yakamotoyakamoto
提出日時 2021-06-26 20:30:20
言語 Kotlin
(1.9.23)
結果
AC  
実行時間 794 ms / 2,000 ms
コード長 3,420 bytes
コンパイル時間 17,522 ms
コンパイル使用メモリ 468,336 KB
実行使用メモリ 55,556 KB
最終ジャッジ日時 2024-06-25 09:21:38
合計ジャッジ時間 31,431 ms
ジャッジサーバーID
（参考情報） 		judge4 / judge2
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 794 ms
55,556 KB
testcase_01 AC 750 ms
55,328 KB
testcase_02 AC 287 ms
50,084 KB
testcase_03 AC 721 ms
55,248 KB
testcase_04 AC 678 ms
54,728 KB
testcase_05 AC 685 ms
54,932 KB
testcase_06 AC 354 ms
51,348 KB
testcase_07 AC 387 ms
52,136 KB
testcase_08 AC 546 ms
54,292 KB
testcase_09 AC 434 ms
52,552 KB
testcase_10 AC 306 ms
50,628 KB
testcase_11 AC 383 ms
52,020 KB
testcase_12 AC 363 ms
51,128 KB
testcase_13 AC 380 ms
51,828 KB
testcase_14 AC 387 ms
53,508 KB
testcase_15 AC 421 ms
52,272 KB
testcase_16 AC 368 ms
52,804 KB
testcase_17 AC 576 ms
54,280 KB
testcase_18 AC 436 ms
52,960 KB
testcase_19 AC 304 ms
50,536 KB
testcase_20 AC 369 ms
52,848 KB
testcase_21 AC 364 ms
53,196 KB
testcase_22 AC 472 ms
53,492 KB
testcase_23 AC 309 ms
50,972 KB
testcase_24 AC 321 ms
50,692 KB
testcase_25 AC 457 ms
53,168 KB
testcase_26 AC 283 ms
50,152 KB
testcase_27 AC 294 ms
50,208 KB
testcase_28 AC 292 ms
50,132 KB
testcase_29 AC 286 ms
50,092 KB
testcase_30 AC 287 ms
50,092 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 (N, M) = na(2)
    val grid = Array(N) {
      val A = na(M)
      var bit = 0
      for (i in 0 until M) {
        bit = bit or (1 shl i)*A[i]
      }
      bit
    }

    val dp = LongArray(1 shl M)
    dp[0] = 1
    for (s in 0 until (1 shl M)) {
      for (i in 0 until M) {
        if (s shr i and 1 == 1) continue

        val cnt = IntArray(2)
        for (j in 0 until N) {
          if (grid[j] and s == s) {
            cnt[grid[j] shr i and 1]++
          }
        }
        if (cnt[0] <= cnt[1]) {
          dp[s or (1 shl i)] += dp[s]
        }
      }
    }
    out.println(dp[(1 shl M) - 1])
  }













































  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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