結果
問題 | No.2794 I Love EDPC-T |
ユーザー | 箱星 |
提出日時 | 2023-01-31 08:59:58 |
言語 | Kotlin (1.9.23) |
結果 |
TLE
|
実行時間 | - |
コード長 | 4,079 bytes |
コンパイル時間 | 16,569 ms |
コンパイル使用メモリ | 456,432 KB |
実行使用メモリ | 93,844 KB |
最終ジャッジ日時 | 2024-05-30 16:24:16 |
合計ジャッジ時間 | 25,744 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge2 |
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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 | 332 ms
65,712 KB |
testcase_01 | AC | 335 ms
62,436 KB |
testcase_02 | AC | 988 ms
93,844 KB |
testcase_03 | AC | 525 ms
71,100 KB |
testcase_04 | AC | 541 ms
71,108 KB |
testcase_05 | AC | 352 ms
62,532 KB |
testcase_06 | TLE | - |
testcase_07 | -- | - |
testcase_08 | -- | - |
testcase_09 | -- | - |
testcase_10 | -- | - |
testcase_11 | -- | - |
testcase_12 | -- | - |
testcase_13 | -- | - |
testcase_14 | -- | - |
testcase_15 | -- | - |
testcase_16 | -- | - |
testcase_17 | -- | - |
testcase_18 | -- | - |
testcase_19 | -- | - |
testcase_20 | -- | - |
testcase_21 | -- | - |
testcase_22 | -- | - |
testcase_23 | -- | - |
testcase_24 | -- | - |
testcase_25 | -- | - |
testcase_26 | -- | - |
testcase_27 | -- | - |
testcase_28 | -- | - |
testcase_29 | -- | - |
testcase_30 | -- | - |
testcase_31 | -- | - |
testcase_32 | -- | - |
testcase_33 | -- | - |
ソースコード
import java.io.PrintWriter import java.util.* import kotlin.math.* fun PrintWriter.solve() { val n = nextInt() val s = nextLine() val p = (1..n).toMutableList() var ans = 0 loop@ do { for (i in 0 until n - 1) { if (s[i] == '<' && p[i] > p[i + 1]) { continue@loop } if (s[i] == '>' && p[i] < p[i + 1]) { continue@loop } } if (lis(p.toTypedArray()) != 2) { continue@loop } ans++ } while (nextPermutation(p)) println(ans) } fun nextPermutation(lst: MutableList<Int>): Boolean { val n = lst.size for (i in n - 2 downTo 0) { if (lst[i] < lst[i + 1]) { for (j in n - 1 downTo i + 1) { if (lst[j] > lst[i]) { lst[i] = lst[j].also { lst[j] = lst[i] } val tmpArray = lst.takeLast(n - (i + 1)).sorted() tmpArray.forEachIndexed { index, e -> lst[i + 1 + index] = e } return true } } } } return false } // region ModInt class ModInt(x: Long) { companion object { //const val MOD = 1000000007L const val MOD = 998244353L } constructor(y: Int) : this(y.toLong()) val x = (x % MOD + MOD) % MOD operator fun plus(other: ModInt): ModInt { return ModInt(x + other.x) } operator fun minus(other: ModInt): ModInt { return ModInt(x - other.x) } operator fun times(other: ModInt): ModInt { return ModInt(x * other.x) } operator fun div(other: ModInt): ModInt { return this * other.inv() } fun pow(exp: Long): ModInt { if (exp == 0L) return ModInt(1L) var a = pow(exp shr 1) a *= a if (exp and 1L == 0L) return a return this * a } fun inv(): ModInt { return this.pow(MOD - 2) } override fun equals(other: Any?): Boolean { if (this === other) return true if (javaClass != other?.javaClass) return false other as ModInt if (x != other.x) return false return true } override fun hashCode(): Int { return x.hashCode() } override fun toString(): String { return "$x" } } fun Long.toModInt(): ModInt { return ModInt(this) } fun Int.toModInt(): ModInt { return ModInt(this) } fun binomSimple(n: Long, k: Long): ModInt { var numer = ModInt(1) var denom = ModInt(1) for (i in 0 until k) { numer *= ModInt(n - i) denom *= ModInt(k - i) } return numer / denom } // endregion //広義のLIS fun lis(a: Array<Int>): Int { val lst = mutableListOf<Int>() for (v in a) { if ((lst.lastOrNull() ?: -1) <= v) { lst.add(v) } else { if (lst[0] > v) { lst[0] = v } else { var left = 0 var right = lst.size - 1 while (right - left > 1) { val mid = (left + right) / 2 if (lst[mid] < v) { left = mid } else { right = mid } } lst[right] = v } } } return lst.size } fun main() { Thread(null, { val writer = PrintWriter(System.out, false) writer.solve() writer.flush() }, "solve", abs(1L.shl(26))) .apply { setUncaughtExceptionHandler { _, e -> e.printStackTrace(); kotlin.system.exitProcess(1) } } .apply { start() }.join() } // region Scanner private var st = StringTokenizer("") private val br = System.`in`.bufferedReader() fun next(): String { while (!st.hasMoreTokens()) st = StringTokenizer(br.readLine()) return st.nextToken() } fun nextInt() = next().toInt() fun nextLong() = next().toLong() fun nextLine() = br.readLine() fun nextDouble() = next().toDouble() // endregion