結果
| 問題 | No.1266 7 Colors |
| ユーザー |
 terry_u16
|
| 提出日時 | 2020-10-23 22:35:31 |
| 言語 | C#(csc) (csc 3.9.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 12,790 bytes |
| コンパイル時間 | 1,889 ms |
| コンパイル使用メモリ | 122,148 KB |
| 実行使用メモリ | 47,316 KB |
| 最終ジャッジ日時 | 2024-07-21 11:25:20 |
| 合計ジャッジ時間 | 14,544 ms |
|
ジャッジサーバーID （参考情報） |
judge3 / judge2 |
（要ログイン）
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 | 43 ms
19,456 KB |
| testcase_01 | AC | 39 ms
19,328 KB |
| testcase_02 | AC | 45 ms
19,328 KB |
| testcase_03 | AC | 477 ms
27,904 KB |
| testcase_04 | WA | - |
| testcase_05 | WA | - |
| testcase_06 | WA | - |
| testcase_07 | WA | - |
| testcase_08 | WA | - |
| testcase_09 | WA | - |
| testcase_10 | WA | - |
| testcase_11 | WA | - |
| testcase_12 | WA | - |
| testcase_13 | WA | - |
| testcase_14 | WA | - |
| testcase_15 | WA | - |
| testcase_16 | WA | - |
| testcase_17 | WA | - |
| testcase_18 | AC | 450 ms
41,968 KB |
| testcase_19 | AC | 472 ms
45,568 KB |
| testcase_20 | AC | 462 ms
45,428 KB |
| testcase_21 | AC | 286 ms
24,576 KB |
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.IO;
using System.Linq;
using System.Text;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using YukicoderContest271.Extensions;
using YukicoderContest271.Questions;
namespace YukicoderContest271.Questions
{
public class QuestionC : AtCoderQuestionBase
{
const int MaxColor = 7;
public override IEnumerable<object> Solve(TextReader inputStream)
{
var (cities, roads, queries) = inputStream.ReadValue<int, int, int>();
var n = cities * MaxColor;
var colors = new bool[cities][];
var uf = new UnionFind(n);
for (int i = 0; i < colors.Length; i++)
{
colors[i] = inputStream.ReadLine().Select(c => c == '1').ToArray();
for (int c = 0; c < MaxColor; c++)
{
if (colors[i][c] && colors[i][(c + 1) % MaxColor])
{
uf.Unite(GetIndex(i, c), GetIndex(i, (c + 1) % MaxColor));
}
}
}
var edgeList = Enumerable.Repeat(0, cities).Select(_ => new List<int>()).ToArray();
for (int i = 0; i < roads; i++)
{
var (u, v) = inputStream.ReadValue<int, int>();
u--;
v--;
edgeList[u].Add(v);
edgeList[v].Add(u);
for (int c = 0; c < MaxColor; c++)
{
if (colors[u][c] && colors[v][c])
{
uf.Unite(GetIndex(u, c), GetIndex(v, c));
}
}
}
foreach (var edges in edgeList)
{
edges.Sort();
}
for (int q = 0; q < queries; q++)
{
var (type, city, color) = inputStream.ReadValue<int, int, int>();
city--;
color--;
if (type == 1)
{
colors[city][color] = true;
for (int c = 0; c < MaxColor; c++)
{
if (colors[city][c] && colors[city][(c + 1) % MaxColor])
{
uf.Unite(GetIndex(city, c), GetIndex(city, (c + 1) % MaxColor));
}
}
foreach (var next in edgeList[city])
{
if (colors[next][color])
{
uf.Unite(GetIndex(city, color), GetIndex(next, color));
}
}
}
else
{
yield return uf.GetGroupSizeOf(0);
}
}
}
int GetIndex(int city, int color) => city * MaxColor + color;
public class UnionFind
{
private int[] _parentsOrSizes;
public int Count => _parentsOrSizes.Length;
public int Groups { get; private set; }
public UnionFind(int count)
{
_parentsOrSizes = new int[count];
_parentsOrSizes.AsSpan().Fill(-1);
Groups = _parentsOrSizes.Length;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public bool Unite(int a, int b)
{
var x = FindRoot(a);
var y = FindRoot(b);
if (x == y)
{
return false;
}
else
{
if (-_parentsOrSizes[x] < _parentsOrSizes[y])
{
(x, y) = (y, x);
}
_parentsOrSizes[x] += _parentsOrSizes[y];
_parentsOrSizes[y] = x;
Groups--;
return true;
}
}
public bool IsInSameGroup(int a, int b) => FindRoot(a) == FindRoot(b);
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public int FindRoot(int index)
{
if (unchecked((uint)index >= (uint)_parentsOrSizes.Length))
{
ThrowArgumentException();
}
return FindRecursive(index);
int FindRecursive(int index)
{
if (_parentsOrSizes[index] < 0)
{
return index;
}
else
{
return _parentsOrSizes[index] = FindRecursive(_parentsOrSizes[index]);
}
}
}
public int GetGroupSizeOf(int index) => -_parentsOrSizes[FindRoot(index)];
public int[][] GetAllGroups()
{
var resultIndices = new int[_parentsOrSizes.Length];
var index = 0;
var results = new int[Groups][];
for (int i = 0; i < _parentsOrSizes.Length; i++)
{
if (_parentsOrSizes[i] < 0)
{
results[index] = new int[-_parentsOrSizes[i]];
resultIndices[i] = index++;
}
}
var counts = new int[results.Length];
for (int i = 0; i < _parentsOrSizes.Length; i++)
{
var group = resultIndices[FindRoot(i)];
results[group][counts[group]++] = i;
}
return results;
}
private void ThrowArgumentException() => throw new ArgumentException();
}
}
}
namespace YukicoderContest271
{
class Program
{
static void Main(string[] args)
{
IAtCoderQuestion question = new QuestionC();
var answers = question.Solve(Console.In);
var writer = new StreamWriter(Console.OpenStandardOutput()) { AutoFlush = false };
Console.SetOut(writer);
foreach (var answer in answers)
{
Console.WriteLine(answer);
}
Console.Out.Flush();
}
}
}
#region Base Class
namespace YukicoderContest271.Questions
{
public interface IAtCoderQuestion
{
IEnumerable<object> Solve(string input);
IEnumerable<object> Solve(TextReader inputStream);
}
public abstract class AtCoderQuestionBase : IAtCoderQuestion
{
public IEnumerable<object> Solve(string input)
{
var stream = new MemoryStream(Encoding.Unicode.GetBytes(input));
var reader = new StreamReader(stream, Encoding.Unicode);
return Solve(reader);
}
public abstract IEnumerable<object> Solve(TextReader inputStream);
}
}
#endregion
#region Extensions
namespace YukicoderContest271.Extensions
{
public static class StringExtensions
{
public static string Join<T>(this IEnumerable<T> source) => string.Concat(source);
public static string Join<T>(this IEnumerable<T> source, char separator) => string.Join(separator, source);
public static string Join<T>(this IEnumerable<T> source, string separator) => string.Join(separator, source);
}
public static class TextReaderExtensions
{
public static int ReadInt(this TextReader reader) => int.Parse(ReadString(reader));
public static long ReadLong(this TextReader reader) => long.Parse(ReadString(reader));
public static double ReadDouble(this TextReader reader) => double.Parse(ReadString(reader));
public static string ReadString(this TextReader reader) => reader.ReadLine();
public static int[] ReadIntArray(this TextReader reader, char separator = ' ') => ReadStringArray(reader, separator).Select(int.Parse).ToArray();
public static long[] ReadLongArray(this TextReader reader, char separator = ' ') => ReadStringArray(reader, separator).Select(long.Parse).ToArray();
public static double[] ReadDoubleArray(this TextReader reader, char separator = ' ') => ReadStringArray(reader, separator).Select(double.Parse).ToArray();
public static string[] ReadStringArray(this TextReader reader, char separator = ' ') => reader.ReadLine().Split(separator);
// Supports primitive type only.
public static T1 ReadValue<T1>(this TextReader reader) => (T1)Convert.ChangeType(reader.ReadLine(), typeof(T1));
public static (T1, T2) ReadValue<T1, T2>(this TextReader reader, char separator = ' ')
{
var inputs = ReadStringArray(reader, separator);
var v1 = (T1)Convert.ChangeType(inputs[0], typeof(T1));
var v2 = (T2)Convert.ChangeType(inputs[1], typeof(T2));
return (v1, v2);
}
public static (T1, T2, T3) ReadValue<T1, T2, T3>(this TextReader reader, char separator = ' ')
{
var inputs = ReadStringArray(reader, separator);
var v1 = (T1)Convert.ChangeType(inputs[0], typeof(T1));
var v2 = (T2)Convert.ChangeType(inputs[1], typeof(T2));
var v3 = (T3)Convert.ChangeType(inputs[2], typeof(T3));
return (v1, v2, v3);
}
public static (T1, T2, T3, T4) ReadValue<T1, T2, T3, T4>(this TextReader reader, char separator = ' ')
{
var inputs = ReadStringArray(reader, separator);
var v1 = (T1)Convert.ChangeType(inputs[0], typeof(T1));
var v2 = (T2)Convert.ChangeType(inputs[1], typeof(T2));
var v3 = (T3)Convert.ChangeType(inputs[2], typeof(T3));
var v4 = (T4)Convert.ChangeType(inputs[3], typeof(T4));
return (v1, v2, v3, v4);
}
public static (T1, T2, T3, T4, T5) ReadValue<T1, T2, T3, T4, T5>(this TextReader reader, char separator = ' ')
{
var inputs = ReadStringArray(reader, separator);
var v1 = (T1)Convert.ChangeType(inputs[0], typeof(T1));
var v2 = (T2)Convert.ChangeType(inputs[1], typeof(T2));
var v3 = (T3)Convert.ChangeType(inputs[2], typeof(T3));
var v4 = (T4)Convert.ChangeType(inputs[3], typeof(T4));
var v5 = (T5)Convert.ChangeType(inputs[4], typeof(T5));
return (v1, v2, v3, v4, v5);
}
public static (T1, T2, T3, T4, T5, T6) ReadValue<T1, T2, T3, T4, T5, T6>(this TextReader reader, char separator = ' ')
{
var inputs = ReadStringArray(reader, separator);
var v1 = (T1)Convert.ChangeType(inputs[0], typeof(T1));
var v2 = (T2)Convert.ChangeType(inputs[1], typeof(T2));
var v3 = (T3)Convert.ChangeType(inputs[2], typeof(T3));
var v4 = (T4)Convert.ChangeType(inputs[3], typeof(T4));
var v5 = (T5)Convert.ChangeType(inputs[4], typeof(T5));
var v6 = (T6)Convert.ChangeType(inputs[5], typeof(T6));
return (v1, v2, v3, v4, v5, v6);
}
public static (T1, T2, T3, T4, T5, T6, T7) ReadValue<T1, T2, T3, T4, T5, T6, T7>(this TextReader reader, char separator = ' ')
{
var inputs = ReadStringArray(reader, separator);
var v1 = (T1)Convert.ChangeType(inputs[0], typeof(T1));
var v2 = (T2)Convert.ChangeType(inputs[1], typeof(T2));
var v3 = (T3)Convert.ChangeType(inputs[2], typeof(T3));
var v4 = (T4)Convert.ChangeType(inputs[3], typeof(T4));
var v5 = (T5)Convert.ChangeType(inputs[4], typeof(T5));
var v6 = (T6)Convert.ChangeType(inputs[5], typeof(T6));
var v7 = (T7)Convert.ChangeType(inputs[6], typeof(T7));
return (v1, v2, v3, v4, v5, v6, v7);
}
public static (T1, T2, T3, T4, T5, T6, T7, T8) ReadValue<T1, T2, T3, T4, T5, T6, T7, T8>(this TextReader reader, char separator = ' ')
{
var inputs = ReadStringArray(reader, separator);
var v1 = (T1)Convert.ChangeType(inputs[0], typeof(T1));
var v2 = (T2)Convert.ChangeType(inputs[1], typeof(T2));
var v3 = (T3)Convert.ChangeType(inputs[2], typeof(T3));
var v4 = (T4)Convert.ChangeType(inputs[3], typeof(T4));
var v5 = (T5)Convert.ChangeType(inputs[4], typeof(T5));
var v6 = (T6)Convert.ChangeType(inputs[5], typeof(T6));
var v7 = (T7)Convert.ChangeType(inputs[6], typeof(T7));
var v8 = (T8)Convert.ChangeType(inputs[7], typeof(T8));
return (v1, v2, v3, v4, v5, v6, v7, v8);
}
}
}
#endregion