#240450 (C#(csc)) No.657 テトラナッチ数列 Easy

• 問題: No.657 テトラナッチ数列 Easy
• ユーザー: くれちー
• 提出日時: 2018-03-02 22:25:30
• 言語: C#(csc) (csc 3.9.0)
• 結果: AC
• 実行時間: 80 ms / 2,000 ms
• コード長: 10,553 bytes
• コンパイル時間: 1,628 ms
• コンパイル使用メモリ: 119,312 KB
• 実行使用メモリ: 33,016 KB
• 最終ジャッジ日時: 2024-06-13 03:19:08
• 合計ジャッジ時間: 3,341 ms
• ジャッジサーバーID （参考情報）: judge2 / judge1

入力	結果	実行時間; 実行使用メモリ
testcase_00	AC	67 ms; 30,956 KB
testcase_01	AC	67 ms; 33,016 KB
testcase_02	AC	67 ms; 32,892 KB
testcase_03	AC	67 ms; 33,008 KB
testcase_04	AC	68 ms; 30,708 KB
testcase_05	AC	72 ms; 30,788 KB
testcase_06	AC	66 ms; 28,772 KB
testcase_07	AC	66 ms; 32,836 KB
testcase_08	AC	67 ms; 30,820 KB
testcase_09	AC	74 ms; 30,756 KB
testcase_10	AC	76 ms; 30,956 KB
testcase_11	AC	77 ms; 30,820 KB
testcase_12	AC	79 ms; 30,580 KB
testcase_13	AC	80 ms; 30,700 KB
testcase_14	AC	80 ms; 32,748 KB
testcase_15	AC	79 ms; 28,792 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;
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()
    {
        var q = I;
        var seq = new ModInt32[1000001];
        seq[0] = seq[1] = seq[2] = 0;
        seq[3] = 1;

        foreach (var i in Range(4, 1000001))
            seq[i] = seq[i - 1] + seq[i - 2] + seq[i - 3] + seq[i - 4];

        foreach (var i in Range(q))
        {
            var n = I;
            Console.WriteLine(seq[n - 1]);
        }
    }

    #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