結果
問題 | No.430 文字列検索 |
ユーザー | iwkjosec |
提出日時 | 2019-10-04 12:11:13 |
言語 | C#(csc) (csc 3.9.0) |
結果 |
AC
|
実行時間 | 96 ms / 2,000 ms |
コード長 | 3,324 bytes |
コンパイル時間 | 949 ms |
コンパイル使用メモリ | 108,032 KB |
実行使用メモリ | 43,860 KB |
最終ジャッジ日時 | 2024-11-10 00:35:31 |
合計ジャッジ時間 | 2,276 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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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 | 25 ms
19,584 KB |
testcase_01 | AC | 96 ms
43,860 KB |
testcase_02 | AC | 57 ms
20,124 KB |
testcase_03 | AC | 55 ms
19,864 KB |
testcase_04 | AC | 26 ms
19,200 KB |
testcase_05 | AC | 27 ms
19,328 KB |
testcase_06 | AC | 26 ms
19,456 KB |
testcase_07 | AC | 26 ms
19,328 KB |
testcase_08 | AC | 95 ms
43,736 KB |
testcase_09 | AC | 28 ms
19,456 KB |
testcase_10 | AC | 32 ms
21,504 KB |
testcase_11 | AC | 64 ms
23,424 KB |
testcase_12 | AC | 62 ms
23,168 KB |
testcase_13 | AC | 63 ms
23,296 KB |
testcase_14 | AC | 62 ms
21,760 KB |
testcase_15 | AC | 62 ms
21,760 KB |
testcase_16 | AC | 56 ms
19,896 KB |
testcase_17 | AC | 58 ms
19,884 KB |
コンパイルメッセージ
Microsoft (R) Visual C# Compiler version 3.9.0-6.21124.20 (db94f4cc) Copyright (C) Microsoft Corporation. All rights reserved.
ソースコード
using System; using System.Collections.Generic; using System.Linq; using static System.Console; using static System.Math; class Program { static void Main() { var s = ReadLine(); var m = int.Parse(ReadLine()); var rh = new RollingHash(s); var d = new Map<ulong, int>(); for (int i = 1; i < 11; i++) { for (int j = 0; j <= s.Length - i; j++) { d[rh.Hash(j, j + i)]++; } } var a = 0; for (int i = 0; i < m; i++) { var c = ReadLine(); var h = RollingHash.ComputeHash(c); a += d[h]; } WriteLine(a); } } public class Map<TKey, TValue> : Dictionary<TKey, TValue> { public Map() { } public Map(int capacity) : base(capacity) { } public Map(IEqualityComparer<TKey> comparer) : base(comparer) { } public Map(int capacity, IEqualityComparer<TKey> comparer) : base(capacity, comparer) { } public Map(IDictionary<TKey, TValue> dictionary) : base(dictionary) { } public Map(IDictionary<TKey, TValue> dictionary, IEqualityComparer<TKey> comparer) : base(dictionary, comparer) { } public Map(IEnumerable<KeyValuePair<TKey, TValue>> collection) : base(collection) { } public Map(IEnumerable<KeyValuePair<TKey, TValue>> collection, IEqualityComparer<TKey> comparer) : base(collection, comparer) { } public new TValue this[TKey key] { get => TryGetValue(key, out var value) ? value : default; set => base[key] = value; } } class RollingHash { const ulong MASK30 = (1UL << 30) - 1; const ulong MASK31 = (1UL << 31) - 1; const ulong MOD = (1UL << 61) - 1; const ulong POSITIVIZER = MOD * ((1UL << 3) - 1); static uint Base; static ulong[] powMemo = new ulong[100000 + 1]; static RollingHash() { Base = (uint)new Random().Next(129, int.MaxValue); powMemo[0] = 1; for (int i = 1; i < powMemo.Length; i++) powMemo[i] = CalcMod(Mul(powMemo[i - 1], Base)); } ulong[] hash; public RollingHash(string s) { hash = new ulong[s.Length + 1]; for (int i = 0; i < s.Length; i++) hash[i + 1] = CalcMod(Mul(hash[i], Base) + s[i]); } public ulong Hash(int begin, int end) { return CalcMod(hash[end] + POSITIVIZER - Mul(hash[begin], powMemo[end - begin])); } public static ulong ComputeHash(string s) { var h = 0UL; for (int i = 0; i < s.Length; i++) { h = CalcMod(Mul(h, Base)+s[i]); } return h; } private static ulong Mul(ulong l, ulong r) { var lu = l >> 31; var ld = l & MASK31; var ru = r >> 31; var rd = r & MASK31; var middleBit = ld * ru + lu * rd; return ((lu * ru) << 1) + ld * rd + ((middleBit & MASK30) << 31) + (middleBit >> 30); } private static ulong Mul(ulong l, uint r) { var lu = l >> 31; var rd = r & MASK31; var middleBit = lu * rd; return (l & MASK31) * rd + ((middleBit & MASK30) << 31) + (middleBit >> 30); } private static ulong CalcMod(ulong val) { val = (val & MOD) + (val >> 61); if (val > MOD) val -= MOD; return val; } }