結果
問題 | No.1112 冥界の音楽 |
ユーザー | yakamoto |
提出日時 | 2020-07-10 21:42:08 |
言語 | Kotlin (1.9.23) |
結果 |
AC
|
実行時間 | 436 ms / 2,000 ms |
コード長 | 3,744 bytes |
コンパイル時間 | 19,826 ms |
コンパイル使用メモリ | 466,812 KB |
実行使用メモリ | 55,844 KB |
最終ジャッジ日時 | 2024-10-11 08:33:54 |
合計ジャッジ時間 | 31,568 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge4 |
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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 | 327 ms
54,260 KB |
testcase_01 | AC | 327 ms
54,204 KB |
testcase_02 | AC | 335 ms
54,352 KB |
testcase_03 | AC | 330 ms
54,096 KB |
testcase_04 | AC | 329 ms
54,276 KB |
testcase_05 | AC | 330 ms
54,204 KB |
testcase_06 | AC | 337 ms
54,512 KB |
testcase_07 | AC | 338 ms
54,244 KB |
testcase_08 | AC | 325 ms
54,196 KB |
testcase_09 | AC | 333 ms
54,216 KB |
testcase_10 | AC | 334 ms
54,144 KB |
testcase_11 | AC | 328 ms
54,392 KB |
testcase_12 | AC | 329 ms
54,324 KB |
testcase_13 | AC | 351 ms
54,428 KB |
testcase_14 | AC | 389 ms
54,968 KB |
testcase_15 | AC | 364 ms
54,632 KB |
testcase_16 | AC | 329 ms
54,348 KB |
testcase_17 | AC | 352 ms
54,696 KB |
testcase_18 | AC | 351 ms
54,888 KB |
testcase_19 | AC | 320 ms
54,228 KB |
testcase_20 | AC | 329 ms
54,200 KB |
testcase_21 | AC | 389 ms
55,136 KB |
testcase_22 | AC | 391 ms
55,008 KB |
testcase_23 | AC | 354 ms
54,664 KB |
testcase_24 | AC | 327 ms
54,208 KB |
testcase_25 | AC | 327 ms
54,192 KB |
testcase_26 | AC | 332 ms
54,244 KB |
testcase_27 | AC | 333 ms
54,292 KB |
testcase_28 | AC | 335 ms
54,428 KB |
testcase_29 | AC | 330 ms
54,100 KB |
testcase_30 | AC | 357 ms
55,040 KB |
testcase_31 | AC | 335 ms
54,300 KB |
testcase_32 | AC | 361 ms
55,008 KB |
testcase_33 | AC | 332 ms
54,424 KB |
testcase_34 | AC | 329 ms
54,240 KB |
testcase_35 | AC | 330 ms
54,232 KB |
testcase_36 | AC | 436 ms
55,844 KB |
ソースコード
import java.io.BufferedReader import java.io.InputStream import java.io.InputStreamReader import java.util.* import kotlin.math.abs import kotlin.math.max import kotlin.math.min val MOD = 1_000_000_007 fun powMat(a: Array<LongArray>, n: Long, mod: Int): Array<LongArray> { if (n == 1L) return a val res = powMat(mulMat(a, a, mod), n / 2, mod) return if (n % 2 == 1L) mulMat(res, a, mod) else res } fun mulMat(a: Array<LongArray>, b: Array<LongArray>, mod: Int): Array<LongArray> { assert(a[0].size == b.size) val len = a[0].size val h = a.size val w = b[0].size val res = Array(h){LongArray(w)} val th = 7e18.toLong() for (i in 0 until h) { for (j in 0 until w) { var v = 0L for (k in 0 until len) { v += a[i][k] * b[k][j] if (v > th) v %= mod } res[i][j] = if (v >= mod) v % mod else v } } return res } class Solver(stream: InputStream, private val out: java.io.PrintWriter) { fun solve() { val K = ni() val M = ni() val N = nl() val A = Array(K * K){LongArray(K * K)} val s = Array(K * K){ LongArray(1) } for (i in 0 until M) { val p = ni() - 1 val q = ni() - 1 val r = ni() - 1 A[q * K + r][p * K + q]++ if (p == 0) { s[q * K + r][0]++ } } if (N == 3L) { out.println(s.withIndex().filter { it.index % K == 0 }.map{it.value[0]}.sum() % MOD) return } val B = powMat(A, N - 3, MOD) debug{"A"} debugDim(A) debug{"B"} debugDim(B) debug{"s"} debugDim(s) val ans = mulMat(B, s, MOD) out.println(ans.withIndex().filter { it.index % K == 0 }.map{it.value[0]}.sum() % MOD) } 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 val reader = BufferedReader(InputStreamReader(stream), 32768) 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 map(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 map(n: Int, f: (Int) -> Int): IntArray { val res = IntArray(n) for (i in 0 until n) { res[i] = f(i) } return res } private inline fun debug(msg: () -> String) { if (isDebug) System.err.println(msg()) } private fun debug(a: LongArray) { debug { a.joinToString(" ") } } private fun debug(a: IntArray) { debug { a.joinToString(" ") } } private fun debug(a: BooleanArray) { debug { a.map { if (it) 1 else 0 }.joinToString("") } } private fun debugDim(A: Array<LongArray>) { if (isDebug) { for (a in A) { debug(a) } } } private fun debugDim(A: Array<IntArray>) { 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) } } fun main() { val out = java.io.PrintWriter(System.out) Solver(System.`in`, out).solve() out.flush() }