結果
問題 | No.500 階乗電卓 |
ユーザー |
|
提出日時 | 2017-04-07 22:45:53 |
言語 | C#(csc) (csc 3.9.0) |
結果 |
AC
|
実行時間 | 35 ms / 2,000 ms |
コード長 | 2,350 bytes |
コンパイル時間 | 1,078 ms |
コンパイル使用メモリ | 111,456 KB |
実行使用メモリ | 30,756 KB |
最終ジャッジ日時 | 2024-06-25 02:50:50 |
合計ジャッジ時間 | 2,626 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge2 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 20 |
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.Collections.Generic;using System.Linq;using System.IO;using System.Globalization;using System.Diagnostics;using static System.Console;using Pair = System.Collections.Generic.KeyValuePair<int, int>;using System.Numerics;class Program{static void Main(){//SetOut(new StreamWriter(OpenStandardOutput()) { AutoFlush = false });new Program().Solve();Out.Flush();}Scanner cin = new Scanner();Random rnd = new Random();Stopwatch sw = new Stopwatch();readonly int[] dd = { 0, 1, 0, -1, 0 };readonly int mod = 1000000007;readonly string alfa = "abcdefghijklmnopqrstuvwxyz";void Solve(){long N = cin.Nextlong;if (N >= 50) { WriteLine(0.ToString("D12")); return; }long p = (long)1e12;BigInteger w = 1;for (int i = 1; i <= N; i++){w *= i;w %= p;//Write(i+" ");//WriteLine(w);}if (N >= 15) WriteLine(w.ToString("D12"));else WriteLine(w);}//a^b(mod p) solution works in O(logb).long Powmod(long a, long b, long p){if (b == 0) return 1;if (b % 2 == 0){long d = Powmod(a, b / 2, p);return d * d % p;}else{return a * Powmod(a, b - 1, p) % p;}}}class Scanner{string[] s; int i;char[] cs = new char[] { ' ' };public Scanner() { s = new string[0]; i = 0; }public string[] Scan { get { return ReadLine().Split(); } }public int[] Scanint { get { return Array.ConvertAll(Scan, int.Parse); } }public long[] Scanlong { get { return Array.ConvertAll(Scan, long.Parse); } }public double[] Scandouble { get { return Array.ConvertAll(Scan, double.Parse); } }public string Next{get{if (i < s.Length) return s[i++];string st = ReadLine();while (st == "") st = ReadLine();s = st.Split(cs, StringSplitOptions.RemoveEmptyEntries);i = 0;return Next;}}public int Nextint { get { return int.Parse(Next); } }public long Nextlong { get { return long.Parse(Next); } }public double Nextdouble { get { return double.Parse(Next); } }}