結果

問題 No.2113 Distance Sequence 1.5
ユーザー yupiteru_kun
提出日時 2022-10-28 22:21:57
言語 C#
(.NET 8.0.404)
結果
AC  
実行時間 41 ms / 2,000 ms
コード長 13,925 bytes
コンパイル時間 8,285 ms
コンパイル使用メモリ 168,288 KB
実行使用メモリ 189,940 KB
最終ジャッジ日時 2024-07-06 01:32:42
合計ジャッジ時間 9,968 ms
ジャッジサーバーID
(参考情報)
judge5 / judge2
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
sample AC * 4
other AC * 21
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
  復元対象のプロジェクトを決定しています...
  /home/judge/data/code/main.csproj を復元しました (80 ms)。
MSBuild のバージョン 17.9.6+a4ecab324 (.NET)
  main -> /home/judge/data/code/bin/Release/net8.0/main.dll
  main -> /home/judge/data/code/bin/Release/net8.0/publish/

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.Collections.Generic;
using System.IO;
using System.Linq;
using static System.Math;
using System.Text;
using System.Threading;
using System.Globalization;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using Library;
namespace Program
{
public static class ProblemE
{
static bool SAIKI = false;
static public int numberOfRandomCases = 0;
static public void MakeTestCase(List<string> _input, List<string> _output, ref Func<string[], bool> _outputChecker)
{
}
static public void Solve()
{
var N = NN;
var M = NN;
var K = NN;
if (M <= K)
{
Console.WriteLine(LIB_Mod998244353.Pow(M, N) * LIB_Mod998244353.Pow(M, N));
}
else
{
LIB_Mod998244353 pat = M - K;
LIB_Mod998244353 pat2 = LIB_Mod998244353.Pow(K, N) * LIB_Mod998244353.Pow(K, N);
LIB_Mod998244353 pat3 = pat2 - LIB_Mod998244353.Pow(K - 1, N) * LIB_Mod998244353.Pow(K - 1, N);
Console.WriteLine(pat2 + pat3 * pat);
}
}
class Printer : StreamWriter
{
public override IFormatProvider FormatProvider { get { return CultureInfo.InvariantCulture; } }
public Printer(Stream stream) : base(stream, new UTF8Encoding(false, true)) { base.AutoFlush = false; }
public Printer(Stream stream, Encoding encoding) : base(stream, encoding) { base.AutoFlush = false; }
}
static LIB_FastIO fastio = new LIB_FastIODebug();
static public void Main(string[] args) { if (args.Length == 0) { fastio = new LIB_FastIO(); Console.SetOut(new Printer(Console
            .OpenStandardOutput())); } if (SAIKI) { var t = new Thread(Solve, 134217728); t.Start(); t.Join(); } else Solve(); Console.Out.Flush(); }
static long NN => fastio.Long();
static double ND => fastio.Double();
static string NS => fastio.Scan();
static long[] NNList(long N) => Repeat(0, N).Select(_ => NN).ToArray();
static double[] NDList(long N) => Repeat(0, N).Select(_ => ND).ToArray();
static string[] NSList(long N) => Repeat(0, N).Select(_ => NS).ToArray();
static long Count<T>(this IEnumerable<T> x, Func<T, bool> pred) => Enumerable.Count(x, pred);
static IEnumerable<T> Repeat<T>(T v, long n) => Enumerable.Repeat<T>(v, (int)n);
static IEnumerable<int> Range(long s, long c) => Enumerable.Range((int)s, (int)c);
static IOrderedEnumerable<T> OrderByRand<T>(this IEnumerable<T> x) => Enumerable.OrderBy(x, _ => xorshift);
static IOrderedEnumerable<T> OrderBy<T>(this IEnumerable<T> x) => Enumerable.OrderBy(x.OrderByRand(), e => e);
static IOrderedEnumerable<T1> OrderBy<T1, T2>(this IEnumerable<T1> x, Func<T1, T2> selector) => Enumerable.OrderBy(x.OrderByRand(), selector
            );
static IOrderedEnumerable<T> OrderByDescending<T>(this IEnumerable<T> x) => Enumerable.OrderByDescending(x.OrderByRand(), e => e);
static IOrderedEnumerable<T1> OrderByDescending<T1, T2>(this IEnumerable<T1> x, Func<T1, T2> selector) => Enumerable.OrderByDescending(x
            .OrderByRand(), selector);
static IOrderedEnumerable<string> OrderBy(this IEnumerable<string> x) => x.OrderByRand().OrderBy(e => e, StringComparer.OrdinalIgnoreCase);
static IOrderedEnumerable<T> OrderBy<T>(this IEnumerable<T> x, Func<T, string> selector) => x.OrderByRand().OrderBy(selector, StringComparer
            .OrdinalIgnoreCase);
static IOrderedEnumerable<string> OrderByDescending(this IEnumerable<string> x) => x.OrderByRand().OrderByDescending(e => e, StringComparer
            .OrdinalIgnoreCase);
static IOrderedEnumerable<T> OrderByDescending<T>(this IEnumerable<T> x, Func<T, string> selector) => x.OrderByRand().OrderByDescending
            (selector, StringComparer.OrdinalIgnoreCase);
static string Join<T>(this IEnumerable<T> x, string separator = "") => string.Join(separator, x);
static uint xorshift { get { _xsi.MoveNext(); return _xsi.Current; } }
static IEnumerator<uint> _xsi = _xsc();
static IEnumerator<uint> _xsc() { uint x = 123456789, y = 362436069, z = 521288629, w = (uint)(DateTime.Now.Ticks & 0xffffffff); while (true)
            { var t = x ^ (x << 11); x = y; y = z; z = w; w = (w ^ (w >> 19)) ^ (t ^ (t >> 8)); yield return w; } }
static bool Chmax<T>(this ref T lhs, T rhs) where T : struct, IComparable<T> { if (lhs.CompareTo(rhs) < 0) { lhs = rhs; return true; } return
            false; }
static bool Chmin<T>(this ref T lhs, T rhs) where T : struct, IComparable<T> { if (lhs.CompareTo(rhs) > 0) { lhs = rhs; return true; } return
            false; }
static void Fill<T>(this T[] array, T value) => array.AsSpan().Fill(value);
static void Fill<T>(this T[,] array, T value) => MemoryMarshal.CreateSpan(ref array[0, 0], array.Length).Fill(value);
static void Fill<T>(this T[,,] array, T value) => MemoryMarshal.CreateSpan(ref array[0, 0, 0], array.Length).Fill(value);
static void Fill<T>(this T[,,,] array, T value) => MemoryMarshal.CreateSpan(ref array[0, 0, 0, 0], array.Length).Fill(value);
}
}
namespace Library {
partial struct LIB_Mod998244353 : IEquatable<LIB_Mod998244353>, IEquatable<long>
{
const int _mod = 998244353; long v;
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public LIB_Mod998244353(long x)
{
if (x < _mod && x >= 0) v = x;
else if ((v = x % _mod) < 0) v += _mod;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
static public implicit operator LIB_Mod998244353(long x) => new LIB_Mod998244353(x);
[MethodImpl(MethodImplOptions.AggressiveInlining)]
static public implicit operator long(LIB_Mod998244353 x) => x.v;
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public void Add(LIB_Mod998244353 x) { if ((v += x.v) >= _mod) v -= _mod; }
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public void Sub(LIB_Mod998244353 x) { if ((v -= x.v) < 0) v += _mod; }
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public void Mul(LIB_Mod998244353 x) => v = (v * x.v) % _mod;
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public void Div(LIB_Mod998244353 x) => v = (v * Inverse(x.v)) % _mod;
[MethodImpl(MethodImplOptions.AggressiveInlining)]
static public LIB_Mod998244353 operator +(LIB_Mod998244353 x, LIB_Mod998244353 y) { var t = x.v + y.v; return t >= _mod ? new
            LIB_Mod998244353 { v = t - _mod } : new LIB_Mod998244353 { v = t }; }
[MethodImpl(MethodImplOptions.AggressiveInlining)]
static public LIB_Mod998244353 operator -(LIB_Mod998244353 x, LIB_Mod998244353 y) { var t = x.v - y.v; return t < 0 ? new LIB_Mod998244353 {
            v = t + _mod } : new LIB_Mod998244353 { v = t }; }
[MethodImpl(MethodImplOptions.AggressiveInlining)]
static public LIB_Mod998244353 operator *(LIB_Mod998244353 x, LIB_Mod998244353 y) => x.v * y.v;
[MethodImpl(MethodImplOptions.AggressiveInlining)]
static public LIB_Mod998244353 operator /(LIB_Mod998244353 x, LIB_Mod998244353 y) => x.v * Inverse(y.v);
[MethodImpl(MethodImplOptions.AggressiveInlining)]
static public bool operator ==(LIB_Mod998244353 x, LIB_Mod998244353 y) => x.v == y.v;
[MethodImpl(MethodImplOptions.AggressiveInlining)]
static public bool operator !=(LIB_Mod998244353 x, LIB_Mod998244353 y) => x.v != y.v;
[MethodImpl(MethodImplOptions.AggressiveInlining)]
static public long Inverse(long x)
{
long b = _mod, r = 1, u = 0, t = 0;
while (b > 0)
{
var q = x / b;
t = u;
u = r - q * u;
r = t;
t = b;
b = x - q * b;
x = t;
}
return r < 0 ? r + _mod : r;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public bool Equals(LIB_Mod998244353 x) => v == x.v;
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public bool Equals(long x) => v == x;
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public override bool Equals(object x) => x == null ? false : Equals((LIB_Mod998244353)x);
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public override int GetHashCode() => v.GetHashCode();
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public override string ToString() => v.ToString();
static List<LIB_Mod998244353> _fact = new List<LIB_Mod998244353>() { 1, 1 };
static List<LIB_Mod998244353> _inv = new List<LIB_Mod998244353>() { 0, 1 };
static List<LIB_Mod998244353> _factinv = new List<LIB_Mod998244353>() { 1, 1 };
static long _factm = _mod;
[MethodImpl(MethodImplOptions.AggressiveInlining)]
static void B(long n)
{
if (_factm != _mod)
{
_fact = new List<LIB_Mod998244353>() { 1, 1 };
_inv = new List<LIB_Mod998244353>() { 0, 1 };
_factinv = new List<LIB_Mod998244353>() { 1, 1 };
}
if (n >= _fact.Count)
{
for (int i = _fact.Count; i <= n; ++i)
{
_fact.Add(_fact[i - 1] * i);
_inv.Add(_mod - _inv[(int)(_mod % i)] * (_mod / i));
_factinv.Add(_factinv[i - 1] * _inv[i]);
}
}
_factm = _mod;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
static public LIB_Mod998244353 Comb(long n, long k)
{
B(n);
if (n == 0 && k == 0) return 1;
if (n < k || n < 0) return 0;
return _fact[(int)n] * _factinv[(int)(n - k)] * _factinv[(int)k];
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
static public LIB_Mod998244353 CombOK(long n, long k)
{
LIB_Mod998244353 ret = 1;
LIB_Mod998244353 deno = 1;
var chk = n - k;
if (chk < k) k = chk;
for (var i = 0; i < k; i++) ret *= n - i;
for (var i = 1; i <= k; i++) deno *= i;
return ret / deno;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
static public LIB_Mod998244353 Perm(long n, long k)
{
B(n);
if (n == 0 && k == 0) return 1;
if (n < k || n < 0) return 0;
return _fact[(int)n] * _factinv[(int)(n - k)];
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
static public LIB_Mod998244353 KanzenPerm(long n, long k) => Enumerable.Range(0, (int)k + 1).Aggregate((LIB_Mod998244353)0, (a, e) => a + (1
            - ((e & 1) << 1)) * LIB_Mod998244353.Comb(k, e) * LIB_Mod998244353.Perm(n - e, k - e));
[MethodImpl(MethodImplOptions.AggressiveInlining)]
static public LIB_Mod998244353 Pow(LIB_Mod998244353 x, long y)
{
LIB_Mod998244353 a = 1;
while (y != 0)
{
if ((y & 1) == 1) a.Mul(x);
x.Mul(x);
y >>= 1;
}
return a;
}
}
class LIB_FastIO
{
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public LIB_FastIO() { str = Console.OpenStandardInput(); }
readonly Stream str;
readonly byte[] buf = new byte[2048];
int len, ptr;
[MethodImpl(MethodImplOptions.AggressiveInlining)]
byte read()
{
if (ptr >= len)
{
ptr = 0;
if ((len = str.Read(buf, 0, 2048)) <= 0)
{
return 0;
}
}
return buf[ptr++];
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
char Char()
{
byte b = 0;
do b = read();
while (b < 33 || 126 < b);
return (char)b;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
virtual public string Scan()
{
var sb = new StringBuilder();
for (var b = Char(); b >= 33 && b <= 126; b = (char)read())
sb.Append(b);
return sb.ToString();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
virtual public long Long()
{
long ret = 0; byte b = 0; var ng = false;
do b = read();
while (b != '-' && (b < '0' || '9' < b));
if (b == '-') { ng = true; b = read(); }
for (; true; b = read())
{
if (b < '0' || '9' < b)
return ng ? -ret : ret;
else ret = (ret << 3) + (ret << 1) + b - '0';
}
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
virtual public double Double() { return double.Parse(Scan(), CultureInfo.InvariantCulture); }
}
class LIB_FastIODebug : LIB_FastIO
{
Queue<string> param = new Queue<string>();
[MethodImpl(MethodImplOptions.AggressiveInlining)]
string NextString() { if (param.Count == 0) foreach (var item in Console.ReadLine().Split(' ')) param.Enqueue(item); return param.Dequeue();
            }
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public LIB_FastIODebug() { }
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public override string Scan() => NextString();
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public override long Long() => long.Parse(NextString());
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public override double Double() => double.Parse(NextString());
}
}
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