結果
| 問題 |
No.189 SUPER HAPPY DAY
|
| コンテスト | |
| ユーザー |
eitaho
|
| 提出日時 | 2015-04-22 18:17:58 |
| 言語 | C#(csc) (csc 3.9.0) |
| 結果 |
AC
|
| 実行時間 | 133 ms / 5,000 ms |
| コード長 | 3,277 bytes |
| コンパイル時間 | 2,062 ms |
| コンパイル使用メモリ | 109,440 KB |
| 実行使用メモリ | 21,376 KB |
| 最終ジャッジ日時 | 2024-07-05 00:17:52 |
| 合計ジャッジ時間 | 4,147 ms |
|
ジャッジサーバーID (参考情報) |
judge4 / judge2 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 23 |
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.IO;
using System.Linq;
using System.Text;
using System.Collections.Generic;
using System.Diagnostics;
using System.Numerics;
using Enu = System.Linq.Enumerable;
class Program
{
static readonly int MaxSum = 9 * 200;
static readonly int Mod = (int)1e9 + 9;
void Add(ref int a, int b) { if ((a += b) >= Mod) a -= Mod; }
public void Solve()
{
string M = Reader.String(), D = Reader.String();
int[] A = DP(M), B = DP(D);
long ans = 0;
for (int i = 1; i < A.Length; i++)
ans = (ans + (long)A[i] * B[i]) % Mod;
Console.WriteLine(ans);
}
int[] DP(string S)
{
var res = new int[MaxSum + 1];
var dp = new int[S.Length + 1, MaxSum + 1, 2]; // len, sum, lesser
dp[0, 0, 0] = 1;
for (int i = 0; i < S.Length; i++)
for (int sum = 0; sum <= 9 * i; sum++)
for (int lesser = 0; lesser < 2; lesser++)
if (dp[i, sum, lesser] > 0)
for (int d = 0; d <= 9; d++)
{
if (d > S[i] - '0' && lesser == 0) break;
int nextLesser = lesser | (d < S[i] - '0' ? 1 : 0);
Add(ref dp[i + 1, sum + d, nextLesser], dp[i, sum, lesser]);
}
for (int sum = 1; sum < res.Length; sum++)
for (int lesser = 0; lesser < 2; lesser++)
Add(ref res[sum], dp[S.Length, sum, lesser]);
return res;
}
}
class Entry { static void Main() { new Program().Solve(); } }
class Reader
{
private static TextReader reader = Console.In;
private static readonly char[] separator = { ' ' };
private static readonly StringSplitOptions op = StringSplitOptions.RemoveEmptyEntries;
private static string[] A = new string[0];
private static int i;
private static void Init() { A = new string[0]; }
public static void Set(TextReader r) { reader = r; Init(); }
public static void Set(string file) { reader = new StreamReader(file); Init(); }
public static bool HasNext() { return CheckNext(); }
public static string String() { return Next(); }
public static int Int() { return int.Parse(Next()); }
public static long Long() { return long.Parse(Next()); }
public static double Double() { return double.Parse(Next()); }
public static int[] IntLine() { return Array.ConvertAll(Split(Line()), int.Parse); }
public static int[] IntArray(int N) { return Enu.Range(0, N).Select(i => Int()).ToArray(); }
public static int[][] IntTable(int H) { return Enu.Range(0, H).Select(i => IntLine()).ToArray(); }
public static string[] StringArray(int N) { return Enu.Range(0, N).Select(i => Line()).ToArray(); }
public static string Line() { return reader.ReadLine().Trim(); }
private static string[] Split(string s) { return s.Split(separator, op); }
private static string Next() { CheckNext(); return A[i++]; }
private static bool CheckNext()
{
if (i < A.Length) return true;
string line = reader.ReadLine();
if (line == null) return false;
if (line == "") return CheckNext();
A = Split(line);
i = 0;
return true;
}
}
eitaho