結果

問題 No.430 文字列検索
コンテスト
ユーザー ひばち
提出日時 2019-08-16 15:57:34
言語 C#(csc)
(csc 3.9.0)
結果
AC  
実行時間 311 ms / 2,000 ms
コード長 7,869 bytes
コンパイル時間 1,144 ms
コンパイル使用メモリ 114,560 KB
実行使用メモリ 68,484 KB
最終ジャッジ日時 2024-11-10 00:28:59
合計ジャッジ時間 4,074 ms
ジャッジサーバーID
（参考情報） 		judge1 / judge5
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 4
other AC * 14
権限があれば一括ダウンロードができます
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

diff # 

using System;
using System.Collections.Generic;
using System.Linq;
using System.IO;
using static System.Console;
using static System.Convert;
using static System.Math;
//using static System.Globalization.CultureInfo;
using System.Text;
class Program
{
    private static void chmin<T>(ref T num, T val) where T : IComparable<T>
        => num = num.CompareTo(val) == 1 ? val : num;
    private static void chmax<T>(ref T num, T val) where T : IComparable<T>
        => num = num.CompareTo(val) == -1 ? val : num;
    static void Main(string[] args)
    {
        var pr = new Program();
        var sw = new StreamWriter(Console.OpenStandardOutput()) { AutoFlush = false };
        Console.SetOut(sw);
        pr.Solve();
        Console.Out.Flush();
    }
    void Solve()
    {
        var str = ReadLine();
        var num = Input.num;
        var rh = new RollingHash(str);
        var dic = Enumerable.Repeat(0, RollingHash.BaseCount).Select(_ => new Dictionary<int, int>()).ToArray();
        for(var k=0;k<10;k++)
            for(var i = 0; i < str.Length-k; i++)
            {
                var m = rh.GetHash(i, i + k + 1);
                for (var p = 0; p < dic.Length; p++)
                    if (dic[p].ContainsKey((int)m[p]))
                        dic[p][(int)m[p]]++;
                    else dic[p][(int)m[p]] = 1;
            }
        var res = new long[RollingHash.BaseCount];
        while (num-- > 0)
        {
            var t = ReadLine();
            var h = RollingHash.GetHash(t);
            for (var i = 0; i < h.Length; i++)
                if (dic[i].ContainsKey((int)h[i]))
                    res[i] += dic[i][(int)h[i]];
        }
        WriteLine(res.Min());
    }
}

public class RollingHash
{
    public string str { get; }
    private long[][] hashTable;
    private long[][] pow;
    public static int[] bases { get; }
    public static int BaseCount { get { return bases.Length; } }
    private const int MOD = (int)1e9 + 7;
    public RollingHash(string str)
    {
        this.str = str;
        hashTable = Enumerable.Repeat(0, BaseCount).Select(_ => new long[str.Length + 1]).ToArray();
        pow = Enumerable.Repeat(0, BaseCount).Select(_ => new long[str.Length + 1]).ToArray();
        for (var i = 0; i < BaseCount; i++)
            pow[i][0] = 1;
        for(var i=0;i<BaseCount;i++)
            for(var j = 1; j <= str.Length; j++)
            {
                hashTable[i][j] = (hashTable[i][j - 1] + str[j - 1]) * bases[i] % MOD;
                pow[i][j] = pow[i][j - 1] * bases[i] % MOD;
            }
    }
    static RollingHash() { bases = new[] { 1009, 1007,1229 }; }
    //[l,r)
    public static long[] GetHash(string s, int l = 0,int r=-1)
    {
        if (r < 0) r = s.Length;
        var h = new long[BaseCount];
        for (var i = 0; i < h.Length; i++)
            for (var j = l; j < r; j++)
                h[i] = (h[i] + s[j]) * bases[i] % MOD;
        return h;
    }
    //[l,r)
    public long[] GetHash(int l = 0,int r = -1)
    {
        if (r < 0) r = str.Length;
        var h = new long[BaseCount];
        for (var i = 0; i < BaseCount; i++)
            h[i] = ((hashTable[i][r] - hashTable[i][l] * pow[i][r - l]) % MOD + MOD) % MOD;
        return h;

    }

}

public class Input
{
    public static string read => ReadLine().Trim();
    public static int[] ar => read.Split(' ').Select(int.Parse).ToArray();
    public static int num => ToInt32(read);
    public static long[] arL => read.Split(' ').Select(long.Parse).ToArray();
    public static long numL => ToInt64(read);
    public static T[] create<T>(int n, Func<int, T> f)
        => Enumerable.Repeat(0, n).Select(f).ToArray();
    public static char[][] gred(int h)
        => create(h, _ => read.ToCharArray());
    public static int[] ar1D(int n)
        => create(n, _ => num);
    public static long[] arL1D(int n)
        => create(n, _ => numL);
    public static string[] strs(int n)
        => create(n, _ => read);
    public static int[][] ar2D(int n)
        => create(n, _ => ar);
    public static long[][] arL2D(int n)
        => create(n, _ => arL);
    public static List<T>[] edge<T>(int n)
        => create(n, _ => new List<T>());
    public static T GetValue<T>(string g)
    {
        var t = typeof(T);
        if (t == typeof(int))
            return (T)(object)int.Parse(g);
        if (t == typeof(long))
            return (T)(object)long.Parse(g);
        if (t == typeof(string))
            return (T)(object)g;
        if (t == typeof(char))
            return (T)(object)char.Parse(g);
        if (t == typeof(double))
            return (T)(object)double.Parse(g);
        if (t == typeof(bool))
            return (T)(object)bool.Parse(g);
        return default(T);
    }
    public static void Make<T1, T2>(out T1 v1, out T2 v2)
    {
        v1 = Next<T1>();
        v2 = Next<T2>();
    }
    public static void Make<T1, T2, T3>(out T1 v1, out T2 v2, out T3 v3)
    {
        Make(out v1, out v2);
        v3 = Next<T3>();
    }
    public static void Make<T1, T2, T3, T4>(out T1 v1, out T2 v2, out T3 v3, out T4 v4)
    {
        Make(out v1, out v2, out v3);
        v4 = Next<T4>();
    }
    public static void Make<T1, T2, T3, T4, T5>(out T1 v1, out T2 v2, out T3 v3, out T4 v4, out T5 v5)
    {
        Make(out v1, out v2, out v3, out v4);
        v5 = Next<T5>();
    }
    public static void Make<T1, T2, T3, T4, T5, T6>(out T1 v1, out T2 v2, out T3 v3, out T4 v4, out T5 v5, out T6 v6)
    {
        Make(out v1, out v2, out v3, out v4, out v5);
        v6 = Next<T6>();
    }
    private static Queue<string> sc;
    public static T Next<T>(){ sc = sc ?? new Queue<string>(); if (sc.Count == 0) foreach (var item in read.Split(' ')) sc.Enqueue(item);return GetValue<T>(sc.Dequeue()); }
    public static void Next<T>(ref T val) => val = Next<T>(); 
    public const long Inf = (long)1e18;
    public const double eps = 1e-6;
    public const string Alfa = "abcdefghijklmnopqrstuvwxyz";
    public const int MOD = 1000000007;
}

public class Pair<T1, T2> : IComparable<Pair<T1, T2>>
{
    public T1 v1 { get; set; }
    public T2 v2 { get; set; }
    public Pair() { v1 = Input.Next<T1>(); v2 = Input.Next<T2>(); }
    public Pair(T1 v1, T2 v2)
    { this.v1 = v1; this.v2 = v2; }

    public int CompareTo(Pair<T1, T2> p)
    {
        var c = Comparer<T1>.Default.Compare(v1, p.v1);
        if (c == 0)
            c = Comparer<T2>.Default.Compare(v2, p.v2);
        return c;
    }
    public override string ToString()
        => $"{v1.ToString()} {v2.ToString()}";
    public override bool Equals(object obj)
        => this == (Pair<T1, T2>)obj;
    public override int GetHashCode()
        => v1.GetHashCode() ^ v2.GetHashCode();
    public static bool operator ==(Pair<T1, T2> p1, Pair<T1, T2> p2)
        => p1.CompareTo(p2) == 0;
    public static bool operator !=(Pair<T1, T2> p1, Pair<T1, T2> p2)
        => p1.CompareTo(p2) != 0;
    public static bool operator >(Pair<T1, T2> p1, Pair<T1, T2> p2)
        => p1.CompareTo(p2) == 1;
    public static bool operator >=(Pair<T1, T2> p1, Pair<T1, T2> p2)
        => p1.CompareTo(p2) != -1;
    public static bool operator <(Pair<T1, T2> p1, Pair<T1, T2> p2)
        => p1.CompareTo(p2) == -1;
    public static bool operator <=(Pair<T1, T2> p1, Pair<T1, T2> p2)
        => p1.CompareTo(p2) != 1;
}

public class Pair<T1, T2, T3> : Pair<T1, T2>, IComparable<Pair<T1, T2, T3>>
{
    public T3 v3 { get; set; }
    public Pair() : base() { v3 = Input.Next<T3>(); }
    public Pair(T1 v1, T2 v2, T3 v3) : base(v1, v2)
    { this.v3 = v3; }

    public int CompareTo(Pair<T1, T2, T3> p)
    {
        var c = base.CompareTo(p);
        if (c == 0)
            c = Comparer<T3>.Default.Compare(v3, p.v3);
        return c;
    }
    public override string ToString()
        => $"{base.ToString()} {v3.ToString()}";
}
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