結果
| 問題 | No.95 Alice and Graph |
| ユーザー |
 紙ぺーぱー
|
| 提出日時 | 2015-05-09 17:30:44 |
| 言語 | C#(csc) (csc 3.9.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 6,069 bytes |
| コンパイル時間 | 2,160 ms |
| コンパイル使用メモリ | 117,292 KB |
| 実行使用メモリ | 86,068 KB |
| 最終ジャッジ日時 | 2024-07-05 21:16:01 |
| 合計ジャッジ時間 | 12,199 ms |
|
ジャッジサーバーID （参考情報） |
judge3 / judge1 |
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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 | WA | - |
| testcase_01 | TLE | - |
| testcase_02 | TLE | - |
| testcase_03 | AC | 28 ms
23,644 KB |
| testcase_04 | WA | - |
| testcase_05 | WA | - |
| testcase_06 | WA | - |
| testcase_07 | TLE | - |
| testcase_08 | AC | 28 ms
23,784 KB |
| testcase_09 | AC | 28 ms
25,956 KB |
| testcase_10 | AC | 26 ms
23,784 KB |
| testcase_11 | AC | 29 ms
27,992 KB |
| testcase_12 | AC | 29 ms
25,944 KB |
| testcase_13 | WA | - |
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.Linq;
using System.Collections.Generic;
using Debug = System.Diagnostics.Debug;
using StringBuilder = System.Text.StringBuilder;
using System.Numerics;
namespace Program
{
public class Solver
{
public void Solve()
{
var n = sc.Integer();
var m = sc.Integer();
var k = sc.Integer();
var G = Enumerate(n, x => new List<int>());
var d = Enumerate(n, x => Enumerate(n, y => 100));
for (int i = 0; i < n; i++)
d[i][i] = 0;
for (int i = 0; i < m; i++)
{
var a = sc.Integer() - 1;
var b = sc.Integer() - 1;
G[a].Add(b); G[b].Add(a); d[a][b] = d[b][a] = 1;
}
for (int t = 0; t < n; t++)
for (int i = 0; i < n; i++)
for (int j = 0; j < n; j++)
d[i][j] = Math.Min(d[i][t] + d[t][j], d[i][j]);
var s = new List<int>() { 0 };
for (int _ = n - 1; _ >= 0 && s.Count <= k + 1; _--)
{
s.Add(_);
var dp = new int[s.Count, 1 << s.Count];
for (int i = 0; i < s.Count; i++)
for (int j = 0; j < 1 << s.Count; j++)
dp[i, j] = 1000;
dp[0, 1] = 0;
for (int i = 1; i < 1 << s.Count; i++)
{
for (int j = 0; j < s.Count; j++)
{
if ((i >> j & 1) == 0)
continue;
if (dp[j, i] == 1000)
continue;
for (int t = 0; t < s.Count; t++)
{
if ((i >> t & 1) == 1)
continue;
var e = d[s[j]][s[t]];
dp[t, i | 1 << t] = Math.Min(dp[j, i] + e, dp[t, i | 1 << t]);
}
}
}
var ok = false;
for (int i = 0; i < s.Count; i++)
if (dp[i, (1 << s.Count) - 1] <= k) { ok = true; break; }
if (!ok) s.RemoveAt(s.Count - 1);
}
var max = 0;
foreach (var x in s)
max += (1 << x) - 1;
IO.Printer.Out.WriteLine(max);
}
public IO.StreamScanner sc = new IO.StreamScanner(Console.OpenStandardInput());
static T[] Enumerate<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; }
static public void Swap<T>(ref T a, ref T b) { var tmp = a; a = b; b = tmp; }
}
}
#region Ex
namespace Program.IO
{
using System.IO;
using System.Text;
using System.Globalization;
public class Printer : StreamWriter
{
static Printer() { Out = new Printer(Console.OpenStandardOutput()) { AutoFlush = false }; }
public static Printer Out { get; set; }
public override IFormatProvider FormatProvider { get { return CultureInfo.InvariantCulture; } }
public Printer(System.IO.Stream stream) : base(stream, new UTF8Encoding(false, true)) { }
public Printer(System.IO.Stream stream, Encoding encoding) : base(stream, encoding) { }
public void Write<T>(string format, IEnumerable<T> source) { base.Write(format, source.OfType<object>().ToArray()); }
public void WriteLine<T>(string format, IEnumerable<T> source) { base.WriteLine(format, source.OfType<object>().ToArray()); }
}
public class StreamScanner
{
public StreamScanner(Stream stream) { str = stream; }
public readonly Stream str;
private readonly byte[] buf = new byte[1024];
private int len, ptr;
public bool isEof = false;
public bool IsEndOfStream { get { return isEof; } }
private byte read()
{
if (isEof) return 0;
if (ptr >= len) { ptr = 0; if ((len = str.Read(buf, 0, 1024)) <= 0) { isEof = true; return 0; } }
return buf[ptr++];
}
public char Char() { byte b = 0; do b = read(); while (b < 33 || 126 < b); return (char)b; }
public string Scan()
{
var sb = new StringBuilder();
for (var b = Char(); b >= 33 && b <= 126; b = (char)read())
sb.Append(b);
return sb.ToString();
}
public long Long()
{
if (isEof) return long.MinValue;
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';
}
}
public int Integer() { return (isEof) ? int.MinValue : (int)Long(); }
public double Double() { return double.Parse(Scan(), CultureInfo.InvariantCulture); }
private T[] enumerate<T>(int n, Func<T> f)
{
var a = new T[n];
for (int i = 0; i < n; ++i) a[i] = f();
return a;
}
public char[] Char(int n) { return enumerate(n, Char); }
public string[] Scan(int n) { return enumerate(n, Scan); }
public double[] Double(int n) { return enumerate(n, Double); }
public int[] Integer(int n) { return enumerate(n, Integer); }
public long[] Long(int n) { return enumerate(n, Long); }
}
}
static class Ex
{
static public string AsString(this IEnumerable<char> ie) { return new string(System.Linq.Enumerable.ToArray(ie)); }
static public string AsJoinedString<T>(this IEnumerable<T> ie, string st = " ") { return string.Join(st, ie); }
static public void Main()
{
var solver = new Program.Solver();
solver.Solve();
Program.IO.Printer.Out.Flush();
}
}
#endregion