結果
| 問題 | No.295 hel__world |
| ユーザー |
 紙ぺーぱー
|
| 提出日時 | 2016-05-26 18:39:05 |
| 言語 | C#(csc) (csc 3.9.0) |
| 結果 |
AC
|
| 実行時間 | 316 ms / 5,000 ms |
| コード長 | 7,437 bytes |
| コンパイル時間 | 1,126 ms |
| コンパイル使用メモリ | 119,112 KB |
| 実行使用メモリ | 49,044 KB |
| 最終ジャッジ日時 | 2024-10-07 16:01:36 |
| 合計ジャッジ時間 | 5,403 ms |
|
ジャッジサーバーID （参考情報） |
judge4 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 4 |
| other | AC * 53 |
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.Linq;using System.Collections.Generic;using Debug = System.Diagnostics.Debug;using StringBuilder = System.Text.StringBuilder;using System.Numerics;using Number = System.Int64;namespace Program{public class Solver{public void Solve(){var a = sc.Long(26);var G = Enumerate(26, x => new List<int>());var T = sc.Scan() + '$';var c = '$';var cnt = 0;foreach (var x in T){if (c == x) cnt++;else{if (c != '$') G[c - 'a'].Add(cnt);c = x; cnt = 1;}}Func<long, long, BigInteger> comb = (n, k) =>{BigInteger ret = 1L;k = Math.Min(k, n - k);for (int i = 1; i <= k; i++){ret *= n - (i - 1);ret /= i;if (ret >= 1L << 62) break;}return ret;};BigInteger ans = 1;const long INF = 1L << 62;for (int _ = 0; _ < 26; _++){var b = G[_];if (b.Count == 0) continue;b.Sort();b.Reverse();//Debug.WriteLine(b.AsJoinedString());if (b.Sum() > a[_]) { ans = 0; continue; }if (ans == INF) continue;if (b.Count == 1){ans = BigInteger.Min(INF, ans * comb(a[_], b[0]));continue;}var rem = a[_] - b.Sum();var l = 1.0; var r = (rem + b[0]) * 2.0;var B = new long[b.Count];if (rem > 100){for (int __ = 0; __ < 100; __++){var m = (l + r) / 2;if (__ == 99) m = r;if (m > 1)for (int i = 0; i < b.Count; i++){var x = b[i];B[i] = (long)(x / (m - 1));}if (B.Sum() <= rem) r = m;else l = m;}rem -= B.Sum();}for (int i = 0; i < b.Count; i++){ans = BigInteger.Min(INF, ans * comb(B[i] + b[i], b[i]));}for (int k = 0; k < rem && ans < INF; k++){var pos = -1;BigInteger mul = -1;BigInteger div = 1;for (int i = 0; i < b.Count; i++){BigInteger u = (B[i] + b[i] + 1);BigInteger v = B[i] + 1;if (u * div > mul * v) { mul = u; div = v; pos = i; }}ans *= mul;ans /= div;B[pos]++;}}if (ans >= 1L << 62)IO.Printer.Out.WriteLine("hel");else{IO.Printer.Out.WriteLine(ans);}}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 mainstatic 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 Exnamespace 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(s, 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