結果
問題 | No.1320 Two Type Min Cost Cycle |
ユーザー |
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提出日時 | 2020-12-17 02:39:06 |
言語 | C#(csc) (csc 3.9.0) |
結果 |
AC
|
実行時間 | 895 ms / 2,000 ms |
コード長 | 4,771 bytes |
コンパイル時間 | 859 ms |
コンパイル使用メモリ | 114,388 KB |
実行使用メモリ | 51,136 KB |
最終ジャッジ日時 | 2024-09-20 06:05:07 |
合計ジャッジ時間 | 12,718 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge5 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 57 |
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; using System.Threading; using System.Runtime.CompilerServices; static class Program{ const int mod=(int)1e9+7; const long inf=long.MaxValue>>1; static List<ValueTuple<int,int,int>>[] li; static void Main(){ Sc sc=new Sc(); var t=sc.I; var s=sc.Ia; int n=s[0],m=s[1]; li=new List<ValueTuple<int,int,int>>[n+1]; var b=new int[n+1]; var h=new int[m][]; var c=new long[n+1]; for(int i=1;i<=n;i++){ li[i]=new List<ValueTuple<int,int,int>>(); b[i]=-1; } for(int i=0;i<m;i++){ h[i]=sc.Ia; li[h[i][0]].Add(ValueTuple.Create(h[i][1],h[i][2],i)); if(t==0){li[h[i][1]].Add(ValueTuple.Create(h[i][0],h[i][2],i));} } long ans=inf; for(int k = 0;k<m;k++) { for(int i=1;i<=n;i++){c[i]=inf;} var pq=new Rheap<int>(64); pq.Push(new Rheap<int>.Dt(0,h[k][1])); c[h[k][1]]=0; while(pq.cnt>0){ var e=pq.Dequeue; if(e.d==h[k][0]){ ans=Min(h[k][2]+e.n,ans); break; } if(b[e.d]==k){continue;} b[e.d]=k; for(int i=0;i<li[e.d].Count;i++){ if(b[li[e.d][i].Item1]!=k&&li[e.d][i].Item3!=k&&c[li[e.d][i].Item1]>li[e.d][i].Item2+e.n){ pq.Push(new Rheap<int>.Dt(li[e.d][i].Item2+e.n,li[e.d][i].Item1)); c[li[e.d][i].Item1]=li[e.d][i].Item2+e.n; } } } } Console.WriteLine("{0}",ans==inf?-1:ans); } } public class Rheap<T>{ public class Dt{ public long n; public T d; public Dt(long n,T d){this.n=n;this.d=d;} public override string ToString()=>"d:"+d.ToString()+" n:"+n.ToString(); } private const int m=65; private long la=0; private Dt[][] bf; private int[] h; public int cnt=0; public Rheap(int max){ bf=new Dt[m][]; h=new int[m]; for(int i = 0;i<m;i++) {bf[i]=new Dt[max];} } public void Push(Dt x){ int a=x.n!=la?Bsr(la^x.n)+1:0; if(h[a]==bf[a].Length){Extend(a);} bf[a][h[a]]=x; cnt++; h[a]++; } public Dt Peek{get{ if(h[0]==0){ for(int i = 1;i<m;i++) { if(h[i]>0){ int p=0; for(int j = 1;j<h[i];j++) { if(bf[i][p].n>bf[i][j].n){p=j;} } la=bf[i][p].n; for(int j = 0;j<h[i];j++) { Push(bf[i][j]); cnt--; } h[i]=0; break; } } } return bf[0][h[0]-1]; }} public Dt Dequeue{get{ var e=Peek; h[0]--; cnt--; return e; }} private void Extend(int n){ var nhe=new Dt[bf[n].Length<<1]; Array.Copy(bf[n],nhe,bf[n].Length); bf[n]=nhe; } private int Bsr(long b){ int n=0; if(b==0){return -1;} if((b&-4294967296)!=0){b=b&-4294967296;n+=32;} if((b&-281470681808896)!=0){b=b&-281470681808896;n+=16;} if((b&-71777214294589696)!=0){b=b&-71777214294589696;n+=8;} if((b&-1085102592571150096)!=0){b=b&-1085102592571150096;n+=4;} if((b&-3689348814741910324)!=0){b=b&-3689348814741910324;n+=2;} if((b&-6148914691236517206)!=0){b=b&-6148914691236517206;n+=1;} return n; } } 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 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 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;} }