結果
| 問題 | No.319 happy b1rthday 2 me |
| ユーザー |
 紙ぺーぱー
|
| 提出日時 | 2015-12-12 01:26:11 |
| 言語 | C#(csc) (csc 3.9.0) |
| 結果 |
AC
|
| 実行時間 | 24 ms / 2,000 ms |
| コード長 | 8,225 bytes |
| コンパイル時間 | 1,028 ms |
| コンパイル使用メモリ | 111,616 KB |
| 実行使用メモリ | 17,664 KB |
| 最終ジャッジ日時 | 2024-09-15 08:33:26 |
| 合計ジャッジ時間 | 2,786 ms |
|
ジャッジサーバーID （参考情報） |
judge5 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 4 |
| other | AC * 29 |
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.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 a = sc.Long();var b = sc.Long();{/*long ans = -1;if (b <= 100000){var sb = new StringBuilder();for (long _ = a; _ <= b; _++)sb.Append(_.ToString());sb.Append("$");var s = sb.ToString();long cnt = 0;for (int _ = 0; _ < s.Length - 1; _++){if (s[_] == '1' && s[_ + 1] == '2') cnt++;}//IO.Printer.Out.WriteLine(cnt);ans = cnt;//return;}//*/var A = func(b.ToString()) - func((a - 1).ToString());var B = action(b.ToString()) - action((a - 1).ToString());//IO.Printer.Out.WriteLine(func(b.ToString()) - func(a.ToString()));//IO.Printer.Out.WriteLine(action(b.ToString()) - action(a.ToString()));if ((a - 1).ToString()[0] == '2' && (a - 1) % 10 == 1) B--;if (a == 1 && 1 < b) B++;IO.Printer.Out.WriteLine(A + B);}}static long func(string str){var len = str.Length;// lower,len,mod 10, cnt(12)var dp = new long[2, len + 1, 10, 10];dp[1, 0, 0, 0] = 1;var ret = 0L;for (int i = 0; i < len; i++)for (int j = 0; j < 10; j++)for (int k = 0; k < 9; k++)for (int v = 0; v < 10; v++){if (v == str[i] - '0'){if (j == 1 && v == 2)dp[1, i + 1, v, k + 1] += dp[1, i, j, k];else dp[1, i + 1, v, k] += dp[1, i, j, k];}else if (v < str[i] - '0'){if (j == 1 && v == 2)dp[0, i + 1, v, k + 1] += dp[1, i, j, k];else dp[0, i + 1, v, k] += dp[1, i, j, k];}if (j == 1 && v == 2)dp[0, i + 1, v, k + 1] += dp[0, i, j, k];else dp[0, i + 1, v, k] += dp[0, i, j, k];}for (int i = 0; i < 10; i++)for (int j = 0; j < 10; j++)ret += j * dp[0, len, i, j] + j * dp[1, len, i, j];return ret;}static long action(string str){var len = str.Length;// lower,len,mod 10,var dp = new long[2, len + 1, 10];for (int i = 0; i < len; i++){for (int j = 0; j < 10; j++){for (int v = 0; v < 10; v++){if (v == str[i] - '0'){dp[1, i + 1, v] += dp[1, i, j];}else if (v < str[i] - '0'){dp[0, i + 1, v] += dp[1, i, j];}dp[0, i + 1, v] += dp[0, i, j];}}if (i == 0 && i < len - 1){if (2 == str[i] - '0')dp[1, i + 1, 2] += 1;else if (2 < str[i] - '0') dp[0, i + 1, 2] += 1;}else if (i < len - 1) dp[0, i + 1, 2] += 1;}return dp[0, len, 2] + dp[1, len, 2];}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(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