結果

問題 No.1988 Divisor Tiling
ユーザー yakamoto
提出日時 2022-06-25 15:53:52
言語 Kotlin
(2.1.0)
結果
AC  
実行時間 382 ms / 2,000 ms
コード長 4,578 bytes
コンパイル時間 17,074 ms
コンパイル使用メモリ 469,872 KB
実行使用メモリ 60,736 KB
最終ジャッジ日時 2024-11-14 14:23:07
合計ジャッジ時間 30,243 ms
ジャッジサーバーID
（参考情報） 		judge4 / judge3
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 2
other AC * 32
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:185:11: 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:189:11: 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:193:11: 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:197:11: 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:199:11: 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:206:11: 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:213:11: 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:230:11: 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 #
プレゼンテーションモードにする

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
fun divisors(x: Int): MutableList<Int> {
  val res = mutableListOf<Int>()
  val post = mutableListOf<Int>()
  var d = 1
  while (d * d <= x) {
    if (x % d == 0) {
      res += d
      if (d * d != x) post += x / d
    }
    ++d
  }
  for (i in post.size - 1 downTo 0) {
    res += post[i]
  }
  return res
}
class Solver(stream: InputStream, private val out: java.io.PrintWriter) {
  private val reader = BufferedReader(InputStreamReader(stream), 32768)
  fun transpose(g: Array<IntArray>): Array<IntArray> {
    val H = g.size
    val W = g[0].size
    val g2 = Array(W){IntArray(H)}
    for (h in 0 until H) {
      for (w in 0 until W) {
        g2[w][h] = g[h][w]
      }
    }
    return g2
  }
  fun solve() {
    val N = ni()
    val H0 = ni()
    if (H0 == 1) {
      val ans = IntArray(N)
      var cur = 0
      for (d in divisors(N).dropLast(1)) {
        for (i in 0 until d) {
          ans[cur++] = d
        }
      }
      out.println(ans.joinToString(" "))
      return
    }
    if (H0 == N) {
      for (d in divisors(N).dropLast(1)) {
        for (i in 0 until d) {
          out.println(d)
        }
      }
      return
    }
    val H = if (N/H0 > H0) N/H0 else H0
    debug{"H:$H"}
    val divs = divisors(N).dropLast(1)
    val g = Array(H){IntArray(N/H)}
    val prevs = divs.take(divs.indexOf(H))
    var row = 0
    for (d in prevs) {
      for (i in 0 until d) {
        g[row++][0] = d
      }
    }
    var col = 1
    for (d in divs.drop(divs.indexOf(H))) {
      for (i in 0 until d/H) {
        for (j in 0 until H) {
          g[j][col] = d
        }
        col++
      }
    }
    debugDim(g)
    val ans = if (H != H0) transpose(g) else g
    for (i in 0 until H0) {
      out.println(ans[i].joinToString(" "))
    }
  }
  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())}
  companion object {
    // TestRunnerから呼びたいので単純なmainじゃだめ
    fun main() {
      val out = java.io.PrintWriter(System.out)
      Solver(System.`in`, out).solve()
      out.flush()
    }
  }
}
/**
 * judgeから呼ばれる
 */
fun main() = Solver.main()
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