結果
問題 | No.1035 Color Box |
ユーザー | fgwiebfaoish |
提出日時 | 2020-04-24 22:07:02 |
言語 | C#(csc) (csc 3.9.0) |
結果 |
AC
|
実行時間 | 113 ms / 2,000 ms |
コード長 | 4,624 bytes |
コンパイル時間 | 949 ms |
コンパイル使用メモリ | 114,300 KB |
実行使用メモリ | 26,068 KB |
最終ジャッジ日時 | 2024-10-15 02:54:43 |
合計ジャッジ時間 | 3,621 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge5 |
(要ログイン)
テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 111 ms
24,576 KB |
testcase_01 | AC | 27 ms
23,952 KB |
testcase_02 | AC | 26 ms
23,984 KB |
testcase_03 | AC | 32 ms
25,652 KB |
testcase_04 | AC | 35 ms
23,732 KB |
testcase_05 | AC | 28 ms
23,960 KB |
testcase_06 | AC | 27 ms
23,624 KB |
testcase_07 | AC | 29 ms
23,856 KB |
testcase_08 | AC | 102 ms
24,448 KB |
testcase_09 | AC | 59 ms
26,068 KB |
testcase_10 | AC | 27 ms
24,220 KB |
testcase_11 | AC | 26 ms
23,892 KB |
testcase_12 | AC | 26 ms
23,680 KB |
testcase_13 | AC | 85 ms
24,528 KB |
testcase_14 | AC | 94 ms
24,496 KB |
testcase_15 | AC | 113 ms
24,776 KB |
testcase_16 | AC | 27 ms
25,976 KB |
testcase_17 | AC | 27 ms
25,776 KB |
testcase_18 | AC | 26 ms
25,904 KB |
testcase_19 | AC | 112 ms
24,652 KB |
testcase_20 | AC | 26 ms
25,780 KB |
testcase_21 | AC | 26 ms
23,728 KB |
testcase_22 | AC | 26 ms
23,684 KB |
testcase_23 | AC | 26 ms
23,980 KB |
testcase_24 | AC | 26 ms
23,852 KB |
testcase_25 | AC | 26 ms
23,984 KB |
testcase_26 | AC | 26 ms
25,852 KB |
testcase_27 | AC | 26 ms
25,976 KB |
testcase_28 | AC | 26 ms
23,984 KB |
testcase_29 | AC | 26 ms
24,052 KB |
testcase_30 | AC | 26 ms
24,236 KB |
testcase_31 | AC | 26 ms
25,904 KB |
testcase_32 | AC | 26 ms
25,900 KB |
testcase_33 | AC | 26 ms
23,852 KB |
testcase_34 | AC | 25 ms
23,808 KB |
testcase_35 | AC | 26 ms
25,848 KB |
testcase_36 | AC | 26 ms
23,548 KB |
testcase_37 | AC | 26 ms
24,116 KB |
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.IO; using System.Reflection; using static System.Math; using System.Numerics; static class Program{ const int mod=(int)1e9+7; const double eps=1e-11; static void Main(){ Sc sc=new Sc(); var s=sc.Ia; int n=s[0],k=s[1]; Mint res=0; Cb r=new Cb(n+k); for(int i=0;i<=k;i++){ Mint tmp=(r.C1(k,i)*(Mint)Fp(i,n)); if((k-i)%2==1){res-=tmp;} else{res+=tmp;} } Console.WriteLine("{0}",res); } 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; } } public class Cb{ private const int mod=(int)1e9+7; public long[] r; public Cb(int n){ r=new long[n]; r[0]=1; for(int i=1;i<n;i++){r[i]=(r[i-1]*i)%mod;} } public long C1(long n,long k){return (r[n]*Mi(r[k]*r[n-k]))%mod;} public long C2(long n,long k){ long l=1; n%=mod; for(int i=1;i<=k;i++){l=(l*(n-i+1))%mod;l=(l*Mi(i))%mod;} return l; } public long P1(long n,long k){return n<k?0:(r[n]*Mi(r[n-k]))%mod;} public 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;a^=b;u-=t*v;u^=v;v^=u;u^=v;} u%=mod; if(u<0){u+=mod;} return u%mod; } } public struct Mint{ const int mod=(int)1e9+7; private long d; public Mint(long d){this.d=d;} public static implicit operator Mint(long d){return new Mint(d%mod);} public static explicit operator long(Mint d){return d.d;} public override string ToString(){return d.ToString();} public static Mint operator+(Mint a,long b){a.d=(a.d+b)%mod;return a;} public static Mint operator+(Mint a,Mint b){a.d=(a.d+b.d)%mod;return a;} public static Mint operator-(Mint a,long b){a.d=(mod+a.d-b)%mod;return a;} public static Mint operator-(Mint a,Mint b){a.d=(mod+a.d-b.d)%mod;return a;} public static Mint operator*(Mint a,long b){a.d=(a.d*b)%mod;return a;} public static Mint operator*(Mint a,Mint b){a.d=(a.d*b.d)%mod;return a;} public static Mint operator/(Mint a,long b){a.d=(a.d*Mi(b))%mod;return a;} public static Mint operator/(Mint a,Mint b){a.d=(a.d*Mi(b.d))%mod;return a;} private 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;a^=b; u-=t*v;u^=v;v^=u;u^=v; } u%=mod; if(u<0){u+=mod;} return u%mod; } } 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(int a){return Array.ConvertAll((a.ToString()+" "+Console.ReadLine()).Split(),int.Parse);} public int[] Ia3(bool a,int b,bool c,int d){return Array.ConvertAll(((a?b.ToString()+" ":"")+Console.ReadLine()+(c?" "+d.ToString():"")).Split(),int.Parse);} public long[] La2{get{return Array.ConvertAll(("0 "+Console.ReadLine()+" 0").Split(),long.Parse);}} public long[] La3(int a){return Array.ConvertAll((a.ToString()+" "+Console.ReadLine()).Split(),long.Parse);} public long[] La3(bool a,int b,bool c,int d){return Array.ConvertAll(((a?b.ToString()+" ":"")+Console.ReadLine()+(c?" "+d.ToString():"")).Split(),long.Parse);} public double[] Da2{get{return Array.ConvertAll(("0 "+Console.ReadLine()+" 0").Split(),double.Parse);}} public double[] Da3(int a){return Array.ConvertAll((a.ToString()+" "+Console.ReadLine()).Split(),double.Parse);} public double[] Da3(bool a,int b,bool c,int d){return Array.ConvertAll(((a?b.ToString()+" ":"")+Console.ReadLine()+(c?" "+d.ToString():"")).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;} }