結果

問題 No.315 世界のなんとか3.5
ユーザー 紙ぺーぱー
提出日時 2015-12-08 01:22:58
言語 C#(csc)
(csc 3.9.0)
結果
AC  
実行時間 1,403 ms / 2,000 ms
コード長 9,166 bytes
コンパイル時間 1,157 ms
コンパイル使用メモリ 118,652 KB
実行使用メモリ 51,940 KB
最終ジャッジ日時 2024-09-14 18:59:11
合計ジャッジ時間 28,109 ms
ジャッジサーバーID
（参考情報） 		judge3 / judge6
このコードへのチャレンジ
（要ログイン）
ファイルパターン 結果
other AC * 36
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 #
プレゼンテーションモードにする

using System;
using System.Linq;
using System.Diagnostics;
using System.Collections.Generic;
using Debug = System.Diagnostics.Debug;
using StringBuilder = System.Text.StringBuilder;
using System.Numerics;
namespace Program
{
    public class Solver
    {
        public void Solve()
        {
            var b = dec(sc.Scan().ToCharArray());
            var a = sc.Scan();
            var p = sc.Integer();
            f(Enumerable.Repeat('a', 100000).AsString());
            var A = f(a);
            var B = f(b.ToString());
            IO.Printer.Out.WriteLine(g(A, p) - g(B, p));
        }
        static public string dec(char[] a)
        {
            for (int i = a.Length - 1; i >= 0; i--)
            {
                if (a[i] == '0')
                {
                    a[i] = '9'; continue;
                }
                a[i]--; break;
            }
            return a.AsString();
        }
        static public ModInteger g(ModInteger[,,,] a, int p)
        {
            ModInteger sum = 0;
            for (int i = 0; i < 2; i++)
                for (int j = 0; j < 2; j++)
                {
                    for (int k = 0; k < 3; k++)
                    {
                        if (j == 1 || k == 0)
                        {
                            for (int l = 0; l < 100000; l++)
                            {
                                if (l % p == 0)
                                    continue;
                                //Debug.WriteLine("{0} {1} {2} {3} {4}", i, j, k, l, a[i, j, k, l]);
                                sum += a[i, j, k, l];
                            }
                        }
                    }
                }
            return sum;
        }
        static public ModInteger[,,,] f(string s)
        {
            const int koyumeishi = 3;
            var dp = new ModInteger[2, 2, koyumeishi];
            dp[0, 0, 0] = 1;
            for (int i = 0; i < s.Length - 5; i++)
            {
                var next = new ModInteger[2, 2, koyumeishi];
                var v = s[i] - '0';
                for (int j = 0; j < 10; j++)
                {
                    for (int k = 0; k < koyumeishi; k++)
                    {
                        var to = (j + k * 10) % koyumeishi;
                        var go = j == 3 ? 1 : 0;
                        next[1, go, to] += dp[1, 0, k];
                        next[1, 1, to] += dp[1, 1, k];
                        if (j <= v)
                        {
                            var otaku = j == v ? 0 : 1;
                            next[otaku, go, to] += dp[0, 0, k];
                            next[otaku, 1, to] += dp[0, 1, k];
                        }
                    }
                }
                dp = next;
            }
            //return dp;
            //otaku special
            int size = 1;
            var unko = new ModInteger[2, 2, 3, 1];
            for (int i = 0; i < 2; i++)
                for (int j = 0; j < 2; j++)
                    for (int k = 0; k < 3; k++)
                        unko[i, j, k, 0] = dp[i, j, k];
            for (int i = Math.Max(0, s.Length - 5); i < s.Length; i++)
            {
                var aaa = size * 10;
                if (i == s.Length - 1) aaa = 100000;
                var next = new ModInteger[2, 2, 3, aaa];
                var v = s[i] - '0';
                for (int j = 0; j < 10; j++)
                {
                    for (int k = 0; k < koyumeishi; k++)
                        for (int l = 0; l < size; l++)
                        {
                            var to = (j + k * 10) % koyumeishi;
                            var gogo = (l * 10 + j);
                            var go = j == 3 ? 1 : 0;
                            next[1, go, to, gogo] += unko[1, 0, k, l];
                            next[1, 1, to, gogo] += unko[1, 1, k, l];
                            if (j <= v)
                            {
                                var otaku = j == v ? 0 : 1;
                                next[otaku, go, to, gogo] += unko[0, 0, k, l];
                                next[otaku, 1, to, gogo] += unko[0, 1, k, l];
                            }
                        }
                }
                unko = next;
                size *= 10;
            }
            return unko;
        }
        public IO.StreamScanner sc = new IO.StreamScanner(Console.OpenStandardInput());
        static T[] Enumerate<T>(int n, Func<int, T> f) { var a = new T[n]; for (int i = 0; i < n; ++i) a[i] = f(i); return a; }
        static public void Swap<T>(ref T a, ref T b) { var tmp = a; a = b; b = tmp; }
    }
}
#region main
static class Ex
{
    static public string AsString(this IEnumerable<char> ie) { return new string(System.Linq.Enumerable.ToArray(ie)); }
    static public string AsJoinedString<T>(this IEnumerable<T> ie, string st = " ") { return string.Join(st, ie); }
    static public void Main()
    {
        var solver = new Program.Solver();
        solver.Solve();
        Program.IO.Printer.Out.Flush();
    }
}
#endregion
#region Ex
namespace Program.IO
{
    using System.IO;
    using System.Text;
    using System.Globalization;
    public class Printer : StreamWriter
    {
        static Printer() { Out = new Printer(Console.OpenStandardOutput()) { AutoFlush = false }; }
        public static Printer Out { get; set; }
        public override IFormatProvider FormatProvider { get { return CultureInfo.InvariantCulture; } }
        public Printer(System.IO.Stream stream) : base(stream, new UTF8Encoding(false, true)) { }
        public Printer(System.IO.Stream stream, Encoding encoding) : base(stream, encoding) { }
        public void Write<T>(string format, T[] source) { base.Write(format, source.OfType<object>().ToArray()); }
        public void WriteLine<T>(string format, T[] source) { base.WriteLine(format, source.OfType<object>().ToArray()); }
    }
    public class StreamScanner
    {
        public StreamScanner(Stream stream) { str = stream; }
        public readonly Stream str;
        private readonly byte[] buf = new byte[1024];
        private int len, ptr;
        public bool isEof = false;
        public bool IsEndOfStream { get { return isEof; } }
        private byte read()
        {
            if (isEof) return 0;
            if (ptr >= len) { ptr = 0; if ((len = str.Read(buf, 0, 1024)) <= 0) { isEof = true; return 0; } }
            return buf[ptr++];
        }
        public char Char() { byte b = 0; do b = read(); while ((b < 33 || 126 < b) && !isEof); return (char)b; }
        public string Scan()
        {
            var sb = new StringBuilder();
            for (var b = Char(); b >= 33 && b <= 126; b = (char)read())
                sb.Append(b);
            return sb.ToString();
        }
        public string ScanLine()
        {
            var sb = new StringBuilder();
            for (var b = Char(); b != '\n'; b = (char)read())
                if (b == 0) break;
                else if (b != '\r') sb.Append(b);
            return sb.ToString();
        }
        public long Long()
        {
            if (isEof) return long.MinValue;
            long ret = 0; byte b = 0; var ng = false;
            do b = read();
            while (b != 0 && b != '-' && (b < '0' || '9' < b));
            if (b == 0) return long.MinValue;
            if (b == '-') { ng = true; b = read(); }
            for (; true; b = read())
            {
                if (b < '0' || '9' < b)
                    return ng ? -ret : ret;
                else ret = ret * 10 + b - '0';
            }
        }
        public int Integer() { return (isEof) ? int.MinValue : (int)Long(); }
        public double Double() { var s = Scan(); return s != "" ? double.Parse(Scan(), CultureInfo.InvariantCulture) : double.NaN; }
        private T[] enumerate<T>(int n, Func<T> f)
        {
            var a = new T[n];
            for (int i = 0; i < n; ++i) a[i] = f();
            return a;
        }
        public char[] Char(int n) { return enumerate(n, Char); }
        public string[] Scan(int n) { return enumerate(n, Scan); }
        public double[] Double(int n) { return enumerate(n, Double); }
        public int[] Integer(int n) { return enumerate(n, Integer); }
        public long[] Long(int n) { return enumerate(n, Long); }
    }
}
#endregion
#region ModNumber
public partial struct ModInteger
{
    public const long Mod = (long)1e9 + 7;
    public long num;
    public ModInteger(long n) : this() { num = n % Mod; if (num < 0) num += Mod; }
    public override string ToString() { return num.ToString(); }
    public static ModInteger operator +(ModInteger l, ModInteger r) { var n = l.num + r.num; if (n >= Mod) n -= Mod; return new ModInteger() { num = 
        n }; }
    public static ModInteger operator -(ModInteger l, ModInteger r) { var n = l.num + Mod - r.num; if (n >= Mod) n -= Mod; return new ModInteger() { 
        num = n }; }
    public static ModInteger operator *(ModInteger l, ModInteger r) { return new ModInteger(l.num * r.num); }
    public static implicit operator ModInteger(long n) { return new ModInteger(n); }
}
#endregion
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
0