結果

問題 No.2840 RGB Plates
ユーザー KumaTachiRenKumaTachiRen
提出日時 2024-08-09 22:54:54
言語 C#
(.NET 8.0.203)
結果
TLE  
実行時間 -
コード長 7,910 bytes
コンパイル時間 12,235 ms
コンパイル使用メモリ 165,732 KB
実行使用メモリ 35,456 KB
最終ジャッジ日時 2024-08-09 22:55:11
合計ジャッジ時間 11,314 ms
ジャッジサーバーID
（参考情報） 		judge1 / judge5
このコードへのチャレンジ
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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 40 ms
28,000 KB
testcase_01 AC 43 ms
35,456 KB
testcase_02 AC 47 ms
24,448 KB
testcase_03 AC 42 ms
24,448 KB
testcase_04 TLE -
testcase_05 -- -
testcase_06 -- -
testcase_07 -- -
testcase_08 -- -
testcase_09 -- -
testcase_10 -- -
testcase_11 -- -
testcase_12 -- -
testcase_13 -- -
testcase_14 -- -
testcase_15 -- -
testcase_16 -- -
testcase_17 -- -
testcase_18 -- -
testcase_19 -- -
testcase_20 -- -
testcase_21 -- -
testcase_22 -- -
testcase_23 -- -
testcase_24 -- -
testcase_25 -- -
testcase_26 -- -
testcase_27 -- -
testcase_28 -- -
testcase_29 -- -
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コンパイルメッセージ
  復元対象のプロジェクトを決定しています...
  /home/judge/data/code/main.csproj を復元しました (140 ms)。
MSBuild のバージョン 17.9.6+a4ecab324 (.NET)
  main -> /home/judge/data/code/bin/Release/net8.0/main.dll
  main -> /home/judge/data/code/bin/Release/net8.0/publish/

ソースコード

diff # 

using Lib;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Numerics;
using System.Runtime.CompilerServices;
using System.Text;
using static Lib.OutputLib;
public class Solver
{
    const bool MultiTestCase = false;
    void Solve()
    {
        int n = ri;
        ReadArray(out int[] a, n);

        int m = a.Sum();

        var bs = new BitSetArray(m + 1, 3);

        bs[1, 0] = true;
        for (int i = 0; i < n; i++)
        {
            bs.Copy(0, 2);
            bs.LeftShift(0, a[i]);
            bs.Or(2, 0);

            bs.Copy(0, 1);
            bs.LeftShift(0, a[i]);
            bs.And(0, 1);
            bs.Or(2, 0);

            bs.Copy(0, 1);
            bs.LeftShift(0, a[i]);
            bs.Or(1, 0);
        }
        int ans = -1;
        for (int k = 1; m - 2 * k > 0; k++)
            if (bs[2, k])
                ans = Math.Max(ans, m - 2 * k);
        Write(ans);
    }


#pragma warning disable CS0162
    public Solver() { if (!MultiTestCase) Solve(); else for (int t = ri; t > 0; t--) Solve(); }
#pragma warning restore CS0162

    const int IINF = 1 << 30;
    const long INF = 1L << 60;
    int ri { [MethodImpl(256)] get => (int)sc.Integer(); }
    long rl { [MethodImpl(256)] get => sc.Integer(); }
    uint rui { [MethodImpl(256)] get => (uint)sc.UInteger(); }
    ulong rul { [MethodImpl(256)] get => sc.UInteger(); }
    double rd { [MethodImpl(256)] get => sc.Double(); }
    string rs { [MethodImpl(256)] get => sc.Scan(); }
    string rline { [MethodImpl(256)] get => sc.Line(); }
    public StreamScanner sc = new StreamScanner(Console.OpenStandardInput());
    void ReadArray(out int[] a, int n) { a = new int[n]; for (int i = 0; i < a.Length; i++) a[i] = ri; }
    void ReadArray(out long[] a, int n) { a = new long[n]; for (int i = 0; i < a.Length; i++) a[i] = rl; }
    void ReadArray<T>(out T[] a, int n, Func<T> read) { a = new T[n]; for (int i = 0; i < a.Length; i++) a[i] = read(); }
    void ReadArray<T>(out T[] a, int n, Func<int, T> read) { a = new T[n]; for (int i = 0; i < a.Length; i++) a[i] = read(i); }
}

static class Program
{
    static public void Main(string[] args)
    {
        SourceExpander.Expander.Expand();
        Console.SetOut(new StreamWriter(Console.OpenStandardOutput()) { AutoFlush = false });
        new Solver();
        Console.Out.Flush();
    }
}
#region Expanded by https://github.com/kzrnm/SourceExpander
public class BitSetArray{private const int SHIFT=6;private const int B=1<<SHIFT;private const int MASK=B-1;public readonly int Size;private readonly ulong[][]data;public BitSetArray(int n,int m){Size=n;data=new ulong[m][];for(int i=0;i<m;i++)data[i]=new ulong[(n+MASK)>>SHIFT];}public bool this[int k,int i]{get=>((data[k][i>>SHIFT]>>(i&MASK))&1)==1;set{int x=i>>SHIFT,y=i&MASK;var v=data[k][x];v^=v&(1ul<<y);v^=(value?1ul:0ul)<<y;data[k][x]=v;}}public void Clear()=>data.AsSpan().Clear();public void Clear(int x)=>data[x].AsSpan().Clear();public void Copy(int to,int with){data[with].CopyTo(data[to],0);}public void And(int to,int with){for(int i=0;i<data[to].Length;i++)data[to][i]&=data[with][i];}public void Or(int to,int with){for(int i=0;i<data[to].Length;i++)data[to][i]|=data[with][i];}public void Xor(int to,int with){for(int i=0;i<data[to].Length;i++)data[to][i]^=data[with][i];}public void LeftShift(int x,int k){if(k>=Size){data[x].AsSpan().Clear();return;}int q=k>>SHIFT,r=k&MASK;if(r==0){for(int i=data[x].Length-1;i>=q;i--)data[x][i]=data[x][i-q];}else{for(int i=data[x].Length-1;i>q;i--)data[x][i]=(data[x][i-q]<<r)|(data[x][i-q-1]>>(B-r));data[x][q]=data[x][0]<<r;}data[x].AsSpan(0,q).Clear();}public void RightShift(int x,int k){if(k>=Size){data[x].AsSpan().Clear();return;}int q=k>>SHIFT,r=k&MASK;if(r==0){for(int i=q;i<data[x].Length;i++)data[x][i-q]=data[x][i];}else{for(int i=q;i+1<data[x].Length;i++)data[x][i-q]=(data[x][i]>>r)|(data[x][i+1]<<(B-r));data[x][data[x].Length-1-q]=data[x][data[x].Length-1]>>r;}data[x].AsSpan(data.Length-q).Clear();}public int Popcount(int x){int ret=0;for(int i=0;i<data[x].Length;i++)ret+=BitOperations.PopCount(data[x][i]);return ret;}}
namespace Lib{public partial class StreamScanner{public int[][]ReadUnweightedTree(int n,int origin=1){var gr=new List<int>[n];for(int i=0;i<n;i++)gr[i]=new List<int>();for(int i=0;i<n-1;i++){int u=(int)(Integer()-origin);int v=(int)(Integer()-origin);gr[u].Add(v);gr[v].Add(u);}var g=new int[n][];for(int i=0;i<n;i++)g[i]=gr[i].ToArray();return g;}}}
namespace Lib{public partial class StreamScanner{public StreamScanner(Stream stream){str=stream;}private readonly Stream str;private readonly byte[]buf=new byte[1024];private int len,ptr;public bool isEof=false;public bool IsEndOfStream{get{return isEof;}}[MethodImpl(256)]private byte Read(){if(isEof)throw new EndOfStreamException();if(ptr>=len){ptr=0;if((len=str.Read(buf,0,1024))<=0){isEof=true;return 0;}}return buf[ptr++];}[MethodImpl(256)]public char Char(){byte b=0;do b=Read();while(b<33||126<b);return(char)b;}[MethodImpl(256)]public string Line(){var sb=new StringBuilder();for(var b=Char();b!=10&&!isEof;b=(char)Read())sb.Append(b);return sb.ToString();}[MethodImpl(256)]public string Scan(){var sb=new StringBuilder();for(var b=Char();b>=33&&b<=126;b=(char)Read())sb.Append(b);return sb.ToString();}[MethodImpl(256)]public long Integer(){long ret=0;byte b=0;var ng=false;do b=Read();while(b!='-'&&(b<'0'||'9'<b));if(b=='-'){ng=true;b=Read();}for(;true;b=Read()){if(b<'0'||'9'<b)return ng?-ret:ret;else ret=ret*10+b-'0';}}[MethodImpl(256)]public ulong UInteger(){ulong ret=0;byte b=0;do b=Read();while(b<'0'||'9'<b);for(;true;b=Read()){if(b<'0'||'9'<b)return ret;else ret=ret*10+b-'0';}}[MethodImpl(256)]public double Double()=>double.Parse(Scan());}}
namespace Lib{public static class OutputLib{[MethodImpl(256)]public static void WriteJoin<T>(string s,IEnumerable<T>t)=>Console.WriteLine(string.Join(s,t));[MethodImpl(256)]public static void WriteMat<T>(T[,]a,string sep=" "){int sz1=a.GetLength(0),sz2=a.GetLength(1);var b=new T[sz2];for(int i=0;i<sz1;i++){for(int j=0;j<sz2;j++)b[j]=a[i,j];WriteJoin(sep,b);}}[MethodImpl(256)]public static void WriteMat<T>(T[][]a,string sep=" "){for(int i=0;i<a.Length;i++)WriteJoin(sep,a[i]);}[MethodImpl(256)]public static void WriteMat<T>(T[][]a,Func<T,string>map,string sep=" "){for(int i=0;i<a.Length;i++)WriteJoin(sep,a[i].Select(x=>map(x)));}[MethodImpl(256)]public static void Write(object t)=>Console.WriteLine(t.ToString());[MethodImpl(256)]public static void Write(params object[]arg)=>Console.WriteLine(string.Join(" ",arg.Select(x=>x.ToString())));[MethodImpl(256)]public static void Write(string str)=>Console.WriteLine(str);[MethodImpl(256)]public static void WriteFlush(object t){Console.WriteLine(t.ToString());Console.Out.Flush();}[MethodImpl(256)]public static void WriteError(object t)=>Console.Error.WriteLine(t.ToString());[MethodImpl(256)]public static void Flush()=>Console.Out.Flush();[MethodImpl(256)]public static void YN(bool t)=>Console.WriteLine(t?"YES":"NO");[MethodImpl(256)]public static void Yn(bool t)=>Console.WriteLine(t?"Yes":"No");[MethodImpl(256)]public static void yn(bool t)=>Console.WriteLine(t?"yes":"no");[MethodImpl(256)]public static void DeleteLine()=>Console.Write("\x1b[1A\x1b[2K");[MethodImpl(256)]public static void ProgressBar(long now,long total,int blocks=50){int x=(int)((2*now*blocks+1)/(2*total));Console.Write($"\x1b[G[\x1b[42m{string.Concat(Enumerable.Repeat("_",x))}\x1b[0m{string.Concat(Enumerable.Repeat("_",blocks-x))}] : {now} / {total}");}}}
namespace SourceExpander{public class Expander{[Conditional("EXP")]public static void Expand(string inputFilePath=null,string outputFilePath=null,bool ignoreAnyError=true){}public static string ExpandString(string inputFilePath=null,bool ignoreAnyError=true){return "";}}}
#endregion Expanded by https://github.com/kzrnm/SourceExpander
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