結果
問題 | No.2890 Chiffon |
ユーザー |
|
提出日時 | 2024-09-13 22:05:17 |
言語 | C# (.NET 8.0.404) |
結果 |
AC
|
実行時間 | 861 ms / 2,000 ms |
コード長 | 6,961 bytes |
コンパイル時間 | 8,190 ms |
コンパイル使用メモリ | 167,968 KB |
実行使用メモリ | 333,948 KB |
最終ジャッジ日時 | 2024-09-26 14:41:01 |
合計ジャッジ時間 | 30,960 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 53 |
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 (97 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
using Lib;using System;using System.Collections.Generic;using System.Diagnostics;using System.IO;using System.Linq;using System.Runtime.CompilerServices;using System.Text;using static Lib.OutputLib;public class Solver{const bool MultiTestCase = false;void Solve(){int n = ri, k = ri;ReadArray(out int[] a, k);var b = new int[2 * k];for (int i = 0; i < k; i++) b[i] = a[i];for (int i = 0; i < k; i++) b[i + k] = a[i] + 2 * n;const int LOG = 20;var dp = new int[LOG][];for (int i = 0; i < LOG; i++) dp[i] = new int[2 * n + 1];int ok = 0, ng = n + 1;while (ng - ok > 1){int x = (ok + ng) / 2;for (int i = 0; i < LOG; i++) Array.Fill(dp[i], -1);for (int i = 1, j = 0; i <= n * 2; i++){while (j + 1 < 2 * k && b[j + 1] <= 2 * i) j++;int p = Math.Min((b[j] - 1) / 2, i - x);if (p < 0) continue;if (j > 0 && p * 2 < b[j - 1]) continue;dp[0][i] = p;for (int l = 0; l + 1 < LOG && dp[l][i] != -1; l++) dp[l + 1][i] = dp[l][dp[l][i]];}var f = new int[n * 2 + 1];for (int i = 0; i <= n * 2; i++) f[i] = i;for (int l = 0; l < LOG; l++){if (((k >> l) & 1) == 0) continue;for (int i = 0; i < f.Length; i++)if (f[i] != -1) f[i] = dp[l][f[i]];}bool flg = false;for (int i = n; i <= n * 2; i++) flg |= i - n <= f[i];if (flg) ok = x; else ng = x;}Write(ok * 2);}#pragma warning disable CS0162public Solver() { if (!MultiTestCase) Solve(); else for (int t = ri; t > 0; t--) Solve(); }#pragma warning restore CS0162const 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/SourceExpandernamespace 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=newint[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 readonlybyte[]buf=new byte[1024];private int len,ptr;public bool isEof=false;public bool IsEndOfStream{get{return isEof;}}[MethodImpl(256)]private byteRead(){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=newStringBuilder();for(var b=Char();b!=10&&!isEof;b=(char)Read())sb.Append(b);return sb.ToString();}[MethodImpl(256)]public string Scan(){var sb=newStringBuilder();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(inti=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,longtotal,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,boolignoreAnyError=true){}public static string ExpandString(string inputFilePath=null,bool ignoreAnyError=true){return "";}}}#endregion Expanded by https://github.com/kzrnm/SourceExpander