結果
問題 | No.1620 Substring Sum |
ユーザー | 箱星 |
提出日時 | 2021-07-22 22:37:12 |
言語 | Kotlin (1.9.23) |
結果 |
AC
|
実行時間 | 559 ms / 2,000 ms |
コード長 | 2,377 bytes |
コンパイル時間 | 15,594 ms |
コンパイル使用メモリ | 442,868 KB |
実行使用メモリ | 84,312 KB |
最終ジャッジ日時 | 2024-07-17 18:53:38 |
合計ジャッジ時間 | 26,460 ms |
ジャッジサーバーID (参考情報) |
judge5 / 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 | 284 ms
54,112 KB |
testcase_01 | AC | 285 ms
54,264 KB |
testcase_02 | AC | 281 ms
54,208 KB |
testcase_03 | AC | 284 ms
54,124 KB |
testcase_04 | AC | 544 ms
84,092 KB |
testcase_05 | AC | 547 ms
84,252 KB |
testcase_06 | AC | 539 ms
84,312 KB |
testcase_07 | AC | 548 ms
82,304 KB |
testcase_08 | AC | 551 ms
82,312 KB |
testcase_09 | AC | 542 ms
82,444 KB |
testcase_10 | AC | 548 ms
82,508 KB |
testcase_11 | AC | 548 ms
82,536 KB |
testcase_12 | AC | 382 ms
81,536 KB |
testcase_13 | AC | 535 ms
82,424 KB |
testcase_14 | AC | 538 ms
82,544 KB |
testcase_15 | AC | 522 ms
82,360 KB |
testcase_16 | AC | 484 ms
82,172 KB |
testcase_17 | AC | 516 ms
82,452 KB |
testcase_18 | AC | 283 ms
50,080 KB |
testcase_19 | AC | 286 ms
50,072 KB |
testcase_20 | AC | 559 ms
82,604 KB |
testcase_21 | AC | 546 ms
82,416 KB |
ソースコード
import java.io.PrintWriter import java.util.* import kotlin.math.* fun PrintWriter.solve() { val s = nextLine() val n = s.length var ans = ModInt(0) for (i in 0 until n) { val left = i.toLong() val right = n - i - 1L ans += ModInt(s[i] - '0') * (ModInt(11).pow(right) * ModInt(2).pow(left)) } 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() { val writer = PrintWriter(System.out, false) writer.solve() writer.flush() } // 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