結果
問題 | No.741 AscNumber(Easy) |
ユーザー |
![]() |
提出日時 | 2018-10-11 03:38:50 |
言語 | C#(csc) (csc 3.9.0) |
結果 |
AC
|
実行時間 | 243 ms / 2,000 ms |
コード長 | 2,381 bytes |
コンパイル時間 | 1,023 ms |
コンパイル使用メモリ | 114,168 KB |
実行使用メモリ | 17,920 KB |
最終ジャッジ日時 | 2024-10-12 17:31:31 |
合計ジャッジ時間 | 6,496 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
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ファイルパターン | 結果 |
---|---|
other | AC * 55 |
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;namespace No741{public class Program{public static void Main(string[] args){var N = int.Parse(Console.ReadLine());var dp = new ModInt[10];dp[0] = 1;for (var i = 0; i <= N; i++)for (var j = 1; j < 10; j++){dp[j] = dp[j - 1] + dp[j];}Console.WriteLine(dp[9]);}}public struct ModInt{public static int Mod = 1000000007;readonly long value;public int Value { get { return (int)value; } }public ModInt Inverse { get { return GetInverse(); } }public ModInt(long value){value %= Mod;this.value = value < 0 ? value + Mod : value;}ModInt GetInverse(){if (value == 0) throw new InvalidOperationException("value must NOT equal 0");return Pow(Mod - 2);}public ModInt Square(){return this * this;}public ModInt Pow(long exp){if (exp == 0) return 1;if (exp % 2 == 0) return Pow(exp / 2).Square();return this * Pow(exp - 1);}public static ModInt Parse(string str){return long.Parse(str);}public static implicit operator ModInt(long value){return new ModInt(value);}public static ModInt operator +(ModInt left, ModInt right){return left.value + right.value;}public static ModInt operator -(ModInt left, ModInt right){return left.value - right.value;}public static ModInt operator *(ModInt left, ModInt right){return left.value * right.value;}public static ModInt operator /(ModInt left, ModInt right){return left * right.Inverse;}public override bool Equals(object obj){if (!(obj is ModInt)) return false;return value == ((ModInt)obj).value;}public override int GetHashCode(){return value.GetHashCode();}public override string ToString(){return value.ToString();}}}