結果

問題 No.1598 4×4 Grid
ユーザー yakamotoyakamoto
提出日時 2021-07-10 18:41:37
言語 Kotlin
(1.9.23)
結果
AC  
実行時間 751 ms / 4,000 ms
コード長 4,176 bytes
コンパイル時間 16,539 ms
コンパイル使用メモリ 465,252 KB
実行使用メモリ 181,072 KB
最終ジャッジ日時 2024-07-02 02:44:20
合計ジャッジ時間 22,643 ms
ジャッジサーバーID
(参考情報)
judge4 / judge1
このコードへのチャレンジ
(要ログイン)

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 319 ms
55,964 KB
testcase_01 AC 428 ms
106,736 KB
testcase_02 AC 425 ms
106,944 KB
testcase_03 AC 584 ms
106,956 KB
testcase_04 AC 659 ms
145,992 KB
testcase_05 AC 751 ms
181,072 KB
testcase_06 AC 723 ms
180,836 KB
testcase_07 AC 310 ms
51,376 KB
testcase_08 AC 427 ms
106,752 KB
testcase_09 AC 670 ms
146,072 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:163:11: 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:167:11: 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:171:11: 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:175:11: 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:177:11: 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:184:11: 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:191:11: 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:208:11: 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
class Solver(stream: InputStream, private val out: java.io.PrintWriter) {
private val reader = BufferedReader(InputStreamReader(stream), 32768)
fun solve() {
val K = ni()
val D = arrayOf(
intArrayOf(-1, 0),
intArrayOf(0, 1),
intArrayOf(1, 0),
intArrayOf(0, -1)
)
val adjMask = IntArray(1 shl 16)
for (i in 0 until 16) {
val r = i/4
val c = i%4
for (d in D) {
val nr = r + d[0]
val nc = c + d[1]
if (nr in 0 until 4 && nc in 0 until 4) {
val j = nr*4 + nc
adjMask[i] = adjMask[i] or (1 shl j)
}
}
}
// if (isDebug) {
// for (i in 0 until 16) {
// debug{"${Integer.toBinaryString(adjMask[i])}"}
// }
// }
val adjCnt = IntArray(1 shl 16)
for (bit in 1 until (1 shl 16)) {
var i = 0
while(bit shr i and 1 == 0) i++
val prev = bit xor (1 shl i)
val adj = Integer.bitCount(adjMask[i] and prev)
val add = Integer.bitCount(adjMask[i]) -2*adj
adjCnt[bit] = adjCnt[prev] + add
}
// debug{"${adjCnt[96]}"}
val dp = Array(K + 1){LongArray(1 shl 16)}
dp[0][0] = 1
for (bit in 0 until (1 shl 16)) {
for (k in 0 .. K) {
if (dp[k][bit] == 0L) continue
for (i in 0 until 16) {
if (bit shr i and 1 == 1) continue
val nbit = bit or (1 shl i)
val nk = k + adjCnt[nbit]
if (nk <= K) dp[nk][nbit] += dp[k][bit]
}
}
}
out.println(dp[K][(1 shl 16) - 1])
}
private val isDebug = try {
//
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())
}
/**
* debug(dp[1])debug{}
*/
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)
}
}
}
/**
* import
*/
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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