結果

問題 No.658 テトラナッチ数列 Hard
ユーザー くれちーくれちー
提出日時 2018-03-02 22:56:03
言語 C#(csc)
(csc 3.9.0)
結果
TLE  
実行時間 -
コード長 11,274 bytes
コンパイル時間 1,163 ms
コンパイル使用メモリ 123,632 KB
実行使用メモリ 32,188 KB
最終ジャッジ日時 2024-06-22 05:08:36
合計ジャッジ時間 14,598 ms
ジャッジサーバーID
(参考情報)
judge3 / judge2
このコードへのチャレンジ
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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 26 ms
30,672 KB
testcase_01 AC 26 ms
23,984 KB
testcase_02 AC 28 ms
25,892 KB
testcase_03 AC 37 ms
26,028 KB
testcase_04 AC 1,335 ms
32,060 KB
testcase_05 AC 1,542 ms
30,140 KB
testcase_06 TLE -
testcase_07 TLE -
testcase_08 TLE -
testcase_09 TLE -
testcase_10 -- -
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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;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Numerics;
using System.Text;
using static System.Convert;
using static System.Math;
using static Constants;
using static Extensions;
using static MathExtensions;

public static class Program
{
    public static void Solve()
    {
        ModInt32[,] Multiply(ModInt32[,] l, ModInt32[,] r)
        {
            var ret = new ModInt32[4, 4];
            foreach (var i in Range(4))
                foreach (var k in Range(4))
                    foreach (var j in Range(4))
                        ret[i, j] += l[i, k] * r[k, j];
            return ret;
        }

        ModInt32[,] Pow(ModInt32[,] v, long n)
        {
            var ret = new ModInt32[4, 4];
            foreach (var i in Range(4))
                ret[i, i] = 1;
            while (n > 0)
            {
                if ((n & 1) != 0)
                    ret = Multiply(ret, v);
                v = Multiply(v, v);
                n >>= 1;
            }
            return ret;
        }

        var mat = new ModInt32[,]
        {
            { 1, 1, 1, 1 },
            { 1, 0, 0, 0 },
            { 0, 1, 0, 0 },
            { 0, 0, 1, 0 },
        };

        var q = I;

        foreach (var i in Range(q))
        {
            var n = L;
            var ans = Pow(mat, n - 1)[3, 0];
            Console.WriteLine(ans);
        }
    }

    #region Scanners
    static TextScanner _ts;
    static char C => char.Parse(_ts.Next());
    static string S => _ts.Next();
    static int I => int.Parse(_ts.Next());
    static long L => long.Parse(_ts.Next());
    static BigInteger B => BigInteger.Parse(_ts.Next());
    static double D => double.Parse(_ts.Next());
    static decimal M => decimal.Parse(_ts.Next());
    #endregion

    public static void Main()
    {
        var sw = new StreamWriter(Console.OpenStandardOutput());
        sw.NewLine = "\n";
#if DEBUG
        sw.AutoFlush = true;
#else
        sw.AutoFlush = false;
#endif
        Console.SetOut(sw);
        _ts = new TextScanner(Console.In);
        Solve();
        Console.Out.Flush();
    }
}

public static partial class Extensions
{
}

#pragma warning disable
#region Library
public struct ModInt32 : IEquatable<ModInt32>
{
    private long _value;

    public const int Mod = 17;

    public static readonly ModInt32 Zero = new ModInt32(0);

    public static readonly ModInt32 One = new ModInt32(1);

    public ModInt32(long value) { _value = value % Mod; }

    private ModInt32(int value) { _value = value; }

    public int Value => (int)_value;

    public ModInt32 Invert() => ModPow(this, Mod - 2); // Mod must be prime

    public static ModInt32 operator -(ModInt32 value)
    {
        value._value = Mod - value._value;
        return value;
    }

    public static ModInt32 operator +(ModInt32 left, ModInt32 right)
    {
        left._value += right._value;
        if (left._value >= Mod) left._value -= Mod;
        return left;
    }

    public static ModInt32 operator -(ModInt32 left, ModInt32 right)
    {
        left._value -= right._value;
        if (left._value < 0) left._value += Mod;
        return left;
    }

    public static ModInt32 operator *(ModInt32 left, ModInt32 right)
    {
        left._value = left._value * right._value % Mod;
        return left;
    }

    public static ModInt32 operator /(ModInt32 left, ModInt32 right) => left * right.Invert();

    public static ModInt32 operator ++(ModInt32 value)
    {
        if (value._value == Mod - 1) value._value = 0;
        else value._value++;
        return value;
    }

    public static ModInt32 operator --(ModInt32 value)
    {
        if (value._value == 0) value._value = Mod - 1;
        else value._value--;
        return value;
    }

    public static bool operator ==(ModInt32 left, ModInt32 right) => left.Equals(right);

    public static bool operator !=(ModInt32 left, ModInt32 right) => !left.Equals(right);

    public static implicit operator ModInt32(int value) => new ModInt32(value);

    public static implicit operator ModInt32(long value) => new ModInt32(value);

    public static ModInt32 ModPow(ModInt32 value, long exponent)
    {
        var r = new ModInt32(1);
        for (; exponent > 0; value *= value, exponent >>= 1)
            if ((exponent & 1) == 1) r *= value;
        return r;
    }

    public static ModInt32 ModFact(int value)
    {
        var r = new ModInt32(1);
        for (var i = 2; i <= value; i++) r *= value;
        return r;
    }

    public bool Equals(ModInt32 other) => _value == other._value;

    public override bool Equals(object obj)
    {
        if (obj == null) return false;
        return this.Equals((ModInt32)obj);
    }

    public override int GetHashCode() => _value.GetHashCode();

    public override string ToString() => _value.ToString();
}

public class TextScanner
{
    private readonly TextReader _tr;

    public TextScanner(TextReader tr)
    {
        _tr = tr;
    }

    public string Next()
    {
        var sb = new StringBuilder();
        int i;
        do
        {
            i = _tr.Read();
            if (i == -1) throw new EndOfStreamException();
        }
        while (char.IsWhiteSpace((char)i));
        while (i != -1 && !char.IsWhiteSpace((char)i))
        {
            sb.Append((char)i);
            i = _tr.Read();
        }
        return sb.ToString();
    }
}

public static class Constants
{
    public const int AnswerToLifeTheUniverseAndEverything = 42;
    public const string Yes = "Yes";
    public const string No = "No";
    public const string YES = "YES";
    public const string NO = "NO";
    public const string Possible = "Possible";
    public const string Impossible = "Impossible";
    public const string POSSIBLE = "POSSIBLE";
    public const string IMPOSSIBLE = "IMPOSSIBLE";
}

[DebuggerStepThrough]
public static partial class Extensions
{
    public static void Answer(object value)
    {
        Console.WriteLine(value);
        Exit(0);
    }

    public static void Assert(bool condition)
    {
        if (!condition) throw new Exception("Assertion failed");
    }

    public static string AsString(this IEnumerable<char> source) => new string(source.ToArray());

    public static Dictionary<T, int> Bucket<T>(this IEnumerable<T> source) where T : IEquatable<T>
    {
        var dict = new Dictionary<T, int>();
        foreach (var item in source) if (dict.ContainsKey(item)) dict[item]++; else dict[item] = 1;
        return dict;
    }

    public static int[] Bucket<T>(this IEnumerable<T> source, int maxValue, Func<T, int> selector)
    {
        var arr = new int[maxValue + 1];
        foreach (var item in source) arr[selector(item)]++;
        return arr;
    }

    public static IComparer<T> CreateDescendingComparer<T>()
        where T : IComparable<T>
        => Comparer<T>.Create((x, y) => y.CompareTo(x));

    public static IEnumerable<int> CumSum(this IEnumerable<int> source)
    {
        var sum = 0;
        foreach (var item in source) yield return sum += item;
    }

    public static IEnumerable<long> CumSum(this IEnumerable<long> source)
    {
        var sum = 0L;
        foreach (var item in source) yield return sum += item;
    }

    public static void Exit(int exitCode)
    {
        Console.Out.Flush();
        Environment.Exit(exitCode);
    }

    public static void ForEach<T>(this IEnumerable<T> source, Action<T> action)
    {
        foreach (var item in source) action(item);
    }

    public static void ForEach<T, _>(this IEnumerable<T> source, Func<T, _> func)
    {
        foreach (var item in source) func(item);
    }

    public static void ForEach<T>(this IEnumerable<T> source, Action<T, int> action)
    {
        var i = 0;
        foreach (var item in source) action(item, i++);
    }

    public static void ForEach<T, _>(this IEnumerable<T> source, Func<T, int, _> func)
    {
        var i = 0;
        foreach (var item in source) func(item, i++);
    }

    // [l, r)
    public static bool IsIn<T>(this T value, T l, T r)
        where T : IComparable<T>
    {
        if (l.CompareTo(r) > 0) throw new ArgumentException();
        return l.CompareTo(value) <= 0 && value.CompareTo(r) < 0;
    }

    public static IEnumerable<int> Range(int start, int end, int step = 1)
    {
        for (var i = start; i < end; i += step) yield return i;
    }

    public static IEnumerable<int> Range(int end) => Range(0, end);

    public static void Repeat(int count, Action action)
    {
        for (var i = 0; i < count; i++) action();
    }

    public static void Repeat(int count, Action<int> action)
    {
        for (var i = 0; i < count; i++) action(i);
    }

    public static IEnumerable<T> Repeat<T>(int count, Func<T> func)
    {
        for (var i = 0; i < count; i++) yield return func();
    }

    public static IEnumerable<T> Repeat<T>(int count, Func<int, T> func)
    {
        for (var i = 0; i < count; i++) yield return func(i);
    }

    public static void Swap<T>(ref T x, ref T y)
    {
        var tmp = x; x = y; y = tmp;
    }
}

[DebuggerStepThrough]
public static class MathExtensions
{
    public static int DivCeil(int left, int right)
        => left / right + (left % right == 0 ? 0 : 1);

    public static long DivCeil(long left, long right)
        => left / right + (left % right == 0L ? 0L : 1L);

    public static int Gcd(int left, int right)
    {
        int r;
        while ((r = left % right) != 0) { left = right; right = r; }
        return right;
    }

    public static long Gcd(long left, long right)
    {
        long r;
        while ((r = left % right) != 0L) { left = right; right = r; }
        return right;
    }

    public static BigInteger Gcd(BigInteger left, BigInteger right)
        => BigInteger.GreatestCommonDivisor(left, right);

    public static int HighestOneBit(int x)
    {
        x |= x >> 01;
        x |= x >> 02;
        x |= x >> 04;
        x |= x >> 08;
        x |= x >> 16;
        return x - (x >> 1);
    }

    public static long HighestOneBit(long x)
    {
        x |= x >> 01;
        x |= x >> 02;
        x |= x >> 04;
        x |= x >> 08;
        x |= x >> 16;
        x |= x >> 32;
        return x - (x >> 1);
    }

    public static int Lcm(int left, int right) => left / Gcd(left, right) * right;

    public static long Lcm(long left, long right) => left / Gcd(left, right) * right;

    public static BigInteger Lcm(BigInteger left, BigInteger right)
        => left / Gcd(left, right) * right;

    public static int Pow(int value, int exponent)
    {
        var r = 1;
        while (exponent > 0)
        {
            if ((exponent & 1) == 1) r *= value;
            value *= value;
            exponent >>= 1;
        }
        return r;
    }

    public static long Pow(long value, int exponent)
    {
        var r = 1L;
        while (exponent > 0)
        {
            if ((exponent & 1) == 1) r *= value;
            value *= value;
            exponent >>= 1;
        }
        return r;
    }

    public static long Fact(int value)
    {
        var r = 1L;
        for (var i = 2; i <= value; i++) r *= i;
        return r;
    }
}
#endregion
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