結果
問題 | No.421 しろくろチョコレート |
ユーザー |
![]() |
提出日時 | 2020-04-04 04:39:13 |
言語 | C#(csc) (csc 3.9.0) |
結果 |
AC
|
実行時間 | 39 ms / 2,000 ms |
コード長 | 5,787 bytes |
コンパイル時間 | 2,670 ms |
コンパイル使用メモリ | 121,132 KB |
実行使用メモリ | 28,260 KB |
最終ジャッジ日時 | 2024-09-23 07:25:27 |
合計ジャッジ時間 | 4,760 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge3 |
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ファイルパターン | 結果 |
---|---|
other | AC * 65 |
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;static readonly int[][] di1=new int[][]{new int[]{-1,0},new int[]{1,0},new int[]{0,-1},new int[]{0,1}};static readonly int[][] di2=new int[][]{new int[]{-1,-1},new int[]{-1,0},new int[]{-1,1},new int[]{0,-1},new int[]{0,1},new int[]{1,-1},newint[]{1,0},new int[]{1,1}};static char[][] bm;static void Main(){Sc sc=new Sc();var s=sc.Ia;int h=s[0],w=s[1];char c='.';bm=new char[h+2][];var qu=new Queue<Tuple<int,int,int>>();for(int i = 1;i<=h;i++) {bm[i]=(c+sc.S+c).ToCharArray();}bm[0]=bm[h+1]=new string(c,w+2).ToCharArray();var fl=new Mfp(h*w+10);int bc=0,wc=0;for(int i = 1;i<=h;i++) {for(int j = 1;j<=w;j++) {if(bm[i][j]=='b'){fl.Edge(0,(i-1)*w+j+1,1);Fdi(i,j,(y,x)=>{if(bm[y][x]=='w'){fl.Edge((i-1)*w+j+1,(y-1)*w+x+1,1);}});bc++;}else if(bm[i][j]=='w'){fl.Edge((i-1)*w+j+1,1,1);wc++;}}}int p=fl.Dinic(0,1),z=Min(bc,wc)-p;Console.WriteLine("{0}",p*100+z*10+Abs(bc-wc));}static void Fdi(int y,int x,Action<int,int> f){for(int i=0;i<4;i++){f(y+di1[i][0],x+di1[i][1]);}}}public class Mfp{public List<int>[] li;private Dictionary<int,int>[] h;private bool[] b;private int[] l;private int n,ans,go;private const int inf=int.MaxValue;public Mfp(int n){this.n=n;li=new List<int>[n];h=new Dictionary<int,int>[n+1];for(int i=0;i<n;i++){li[i]=new List<int>();h[i]=new Dictionary<int,int>();}}public void Edge(int a,int b,int c){if(a==b){return;}if(!h[a].ContainsKey(b)){li[a].Add(b);li[b].Add(a);h[a].Add(b,c);h[b].Add(a,0);}else{h[a][b]+=c;}}public int Dinic(int st,int go){this.go=st;ans=0;int z=1;while(z>0){l=new int[n];var qu=new Queue<Tuple<int,int>>();qu.Enqueue(Tuple.Create(st,1));l[st]=1;while(qu.Count>0){var e=qu.Dequeue();for(int i=0;i<li[e.Item1].Count;i++){if(l[li[e.Item1][i]]==0&&h[e.Item1][li[e.Item1][i]]!=0){l[li[e.Item1][i]]=e.Item2+1;qu.Enqueue(Tuple.Create(li[e.Item1][i],e.Item2+1));}}if(e.Item1==go){break;}}b=new bool[n];z=Fu3(go,inf);ans+=z;}return ans;}private int Fu3(int a,int p){if(a==go){return p;}int u=0;for(int i=0;i<li[a].Count&&p>u;i++){if(!b[li[a][i]]&&l[li[a][i]]<l[a]&&h[li[a][i]][a]!=0){int z=Fu3(li[a][i],Min(p-u,h[li[a][i]][a]));h[li[a][i]][a]-=z;h[a][li[a][i]]+=z;u+=z;}}if(u==0){b[a]=true;}return u;}public int Ff(int st,int go){this.go=go;ans=0;int z=1;while(z>0){b=new bool[n];z=Fu2(st,inf);ans+=z;}return ans;}private int Fu2(int a,int p){if(a==go){return p;}int u=0;b[a]=true;for(int i=0;i<li[a].Count&&p>u;i++){if(!b[li[a][i]]&&h[a][li[a][i]]!=0){int z=Fu2(li[a][i],Min(p-u,h[a][li[a][i]]));h[a][li[a][i]]-=z;h[li[a][i]][a]+=z;u+=z;}}if(u!=0){b[a]=false;}return u;}public void Vc(int s,Action<int> f){b=new bool[n];Fu4(s,0,f);for(int i=0;i<li[s].Count;i++){if(h[s][li[s][i]]==0&&!b[li[s][i]]){f(li[s][i]);}}}private void Fu4(int a,int p,Action<int> f){b[a]=true;if((p&1)==0&&p!=0){f(a);}for(int i=0;i<li[a].Count;i++){if(h[a][li[a][i]]!=0&&!b[li[a][i]]){Fu4(li[a][i],p+1,f);}}}}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;}}