結果
問題 | No.1645 AB's abs |
ユーザー | 👑 箱 |
提出日時 | 2021-08-13 21:54:03 |
言語 | Kotlin (1.9.10) |
結果 |
AC
|
実行時間 | 464 ms / 2,000 ms |
コード長 | 2,719 bytes |
コンパイル時間 | 17,609 ms |
コンパイル使用メモリ | 434,536 KB |
実行使用メモリ | 60,108 KB |
最終ジャッジ日時 | 2023-07-27 04:16:25 |
合計ジャッジ時間 | 35,926 ms |
ジャッジサーバーID (参考情報) |
judge12 / judge11 |
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 | 281 ms
52,852 KB |
testcase_01 | AC | 282 ms
52,868 KB |
testcase_02 | AC | 322 ms
56,652 KB |
testcase_03 | AC | 285 ms
52,140 KB |
testcase_04 | AC | 283 ms
54,532 KB |
testcase_05 | AC | 280 ms
52,144 KB |
testcase_06 | AC | 282 ms
52,472 KB |
testcase_07 | AC | 281 ms
52,008 KB |
testcase_08 | AC | 334 ms
57,188 KB |
testcase_09 | AC | 353 ms
57,296 KB |
testcase_10 | AC | 326 ms
57,440 KB |
testcase_11 | AC | 331 ms
55,892 KB |
testcase_12 | AC | 329 ms
55,472 KB |
testcase_13 | AC | 437 ms
57,892 KB |
testcase_14 | AC | 380 ms
55,596 KB |
testcase_15 | AC | 442 ms
57,780 KB |
testcase_16 | AC | 444 ms
58,336 KB |
testcase_17 | AC | 446 ms
59,824 KB |
testcase_18 | AC | 435 ms
57,880 KB |
testcase_19 | AC | 431 ms
57,744 KB |
testcase_20 | AC | 389 ms
57,448 KB |
testcase_21 | AC | 437 ms
59,680 KB |
testcase_22 | AC | 429 ms
58,104 KB |
testcase_23 | AC | 432 ms
58,268 KB |
testcase_24 | AC | 438 ms
60,032 KB |
testcase_25 | AC | 450 ms
58,372 KB |
testcase_26 | AC | 433 ms
58,052 KB |
testcase_27 | AC | 436 ms
59,768 KB |
testcase_28 | AC | 428 ms
59,768 KB |
testcase_29 | AC | 435 ms
57,996 KB |
testcase_30 | AC | 439 ms
57,780 KB |
testcase_31 | AC | 440 ms
60,108 KB |
testcase_32 | AC | 438 ms
58,324 KB |
testcase_33 | AC | 453 ms
60,020 KB |
testcase_34 | AC | 449 ms
58,092 KB |
testcase_35 | AC | 446 ms
58,084 KB |
testcase_36 | AC | 464 ms
57,820 KB |
testcase_37 | AC | 449 ms
58,068 KB |
testcase_38 | AC | 308 ms
52,584 KB |
ソースコード
import java.io.PrintWriter import java.util.* import kotlin.math.* fun PrintWriter.solve() { val n = nextInt() val a = Array(n) { nextInt() } var map = mutableMapOf<Int, ModInt>() map[0] = ModInt(1) for (i in 0 until n) { val map2 = mutableMapOf<Int, ModInt>() for (k in map.keys) { map2[k + a[i]] = (map2[k + a[i]] ?: ModInt(0)) + map[k]!! val v = (k - a[i]).absoluteValue map2[v] = (map2[v] ?: ModInt(0)) + map[k]!! } map = map2 } var ans = ModInt(0) for ((k, v) in map) { ans += k.toModInt() * v } println(ans) } // 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 fun main() { Thread(null, { val writer = PrintWriter(System.out, false) writer.solve() writer.flush() }, "solve", 1.shl(26)).start() } // 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