結果
問題 | No.1706 Many Bus Stops (hard) |
ユーザー |
![]() |
提出日時 | 2021-10-12 22:04:22 |
言語 | C#(csc) (csc 3.9.0) |
結果 |
AC
|
実行時間 | 26 ms / 2,000 ms |
コード長 | 4,212 bytes |
コンパイル時間 | 840 ms |
コンパイル使用メモリ | 115,924 KB |
実行使用メモリ | 26,348 KB |
最終ジャッジ日時 | 2024-09-17 09:35:28 |
合計ジャッジ時間 | 2,973 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge4 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 2 |
other | AC * 41 |
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.Collections;using System.Collections.Specialized;using System.Linq;using System.Text;using System.Text.RegularExpressions;using System.IO;using System.Reflection;using static System.Math;using System.Numerics;using System.Threading;using System.Runtime.CompilerServices;using System.Diagnostics;//using nint=System.Int32;static class Program{const int mod=(int)1e9+7;static void Main(){Sc sc=new Sc();var (c,n,m)=sc.Tp3<int>();var p=Mi(c);var g=new long[][]{new long[]{p,0,1,0},new long[]{0,p,0,1},new long[]{0,p,0,0},new long[]{p*(c-1)%mod,p*(c-2)%mod,0,0},};var a=Mp(new long[]{1,0,0,0},g,n);Console.WriteLine((mod+1-Fp((mod+1-a[0])%mod,m))%mod);}static long Fp(long x,long e){long r=1;while(e>0){if((e&1)>0){r*=x;r%=mod;}x=x*x%mod;e>>=1;}return r;}static long Mi(long a){a=(a+mod)%mod;long b=mod,u=1,v=0;while(b>0){long t=a/b;a-=t*b;(a,b)=(b,a);u-=t*v;(u,v)=(v,u);}u%=mod;if(u<0){u+=mod;}return u%mod;}static long[] Mp(long[] r,long[][] x,long e){while(e>0){if((e&1)>0){r=Mm(x,r);}x=Mm(x,x);e>>=1;}return r;}static long[] Mm(long[][] a,long[] b){var q=new long[b.Length];for(int j=0;j<a.Length;j++){for(int k=0;k<a.Length;k++){q[j]=(q[j]+a[j][k]*b[k])%mod;}}return q;}static long[][] Mm(long[][] a,long[][] b){var q=new long[a.Length][];for(int j=0;j<a.Length;j++){q[j]=new long[b[0].Length];for(int i=0;i<b[0].Length;i++){for(int k=0;k<a.Length;k++){q[j][i]=(q[j][i]+a[j][k]*b[k][i])%mod;}}}return q;}}public class Sc{public int I{get{return int.Parse(Console.ReadLine());}}public long L{get{return long.Parse(Console.ReadLine());}}public double D{get{return double.Parse(Console.ReadLine());}}public string S{get{return Console.ReadLine();}}public int[] Ia{get{return Array.ConvertAll(Console.ReadLine().Split(),int.Parse);}}public long[] La{get{return Array.ConvertAll(Console.ReadLine().Split(),long.Parse);}}public double[] Da{get{return Array.ConvertAll(Console.ReadLine().Split(),double.Parse);}}public string[] Sa{get{return Console.ReadLine().Split();}}public object[] Oa{get{return Console.ReadLine().Split();}}public int[] Ia2{get{return Array.ConvertAll(("0 "+Console.ReadLine()+" 0").Split(),int.Parse);}}public int[] Ia3(string a,string b){return Array.ConvertAll((a+Console.ReadLine()+b).Split(),int.Parse);}public int[] Ia3(int a){return Array.ConvertAll((Console.ReadLine()+" "+a.ToString()).Split(),int.Parse);}public long[] La2{get{return Array.ConvertAll(("0 "+Console.ReadLine()+" 0").Split(),long.Parse);}}public long[] La3(string a,string b){return Array.ConvertAll((a+Console.ReadLine()+b).Split(),long.Parse);}public long[] La3(int a){return Array.ConvertAll((Console.ReadLine()+" "+a.ToString()).Split(),long.Parse);}public double[] Da2{get{return Array.ConvertAll(("0 "+Console.ReadLine()+" 0").Split(),double.Parse);}}public double[] Da3(string a,string b){return Array.ConvertAll((a+Console.ReadLine()+b).Split(),double.Parse);}public T[] Arr<T>(int n,Func<T> f){var a=new T[n];for(int i=0;i<n;i++){a[i]=f();}return a;}public T[] Arr<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;}public T[] Arr<T>(int n,Func<string[],T> f){var a=new T[n];for(int i=0;i<n;i++){a[i]=f(Console.ReadLine().Split());}return a;}public T[] Arr<T>(int n,Func<int,string[],T> f){var a=new T[n];for(int i=0;i<n;i++){a[i]=f(i,Console.ReadLine().Split());}return a;}public (T,T) Tp2<T>(){var s=Console.ReadLine().Split();return (Ct<T>(s[0]),Ct<T>(s[1]));}public (T,T,T) Tp3<T>(){var s=Console.ReadLine().Split();return (Ct<T>(s[0]),Ct<T>(s[1]),Ct<T>(s[2]));}public (T,T,T,T) Tp4<T>(){var s=Console.ReadLine().Split();return (Ct<T>(s[0]),Ct<T>(s[1]),Ct<T>(s[2]),Ct<T>(s[3]));}public (T1,T2) Tp2<T1,T2>(){var s=Console.ReadLine().Split();return (Ct<T1>(s[0]),Ct<T2>(s[1]));}public (T1,T1,T2) Tp3<T1,T2>(){var s=Console.ReadLine().Split();return (Ct<T1>(s[0]),Ct<T1>(s[1]),Ct<T2>(s[2]));}private T Ct<T>(string s){return (T)Convert.ChangeType(s,typeof(T));}}