結果

問題 No.307 最近色塗る問題多くない？
ユーザー くれちーくれちー
提出日時 2018-03-13 23:17:16
言語 C#(csc)
(csc 3.9.0)
結果
TLE  
実行時間 -
コード長 14,741 bytes
コンパイル時間 1,483 ms
コンパイル使用メモリ 118,400 KB
実行使用メモリ 49,472 KB
最終ジャッジ日時 2024-05-03 08:09:54
合計ジャッジ時間 12,619 ms
ジャッジサーバーID
（参考情報） 		judge3 / judge4
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 42 ms
31,948 KB
testcase_01 AC 42 ms
20,224 KB
testcase_02 AC 33 ms
19,072 KB
testcase_03 AC 43 ms
20,224 KB
testcase_04 AC 47 ms
21,376 KB
testcase_05 AC 43 ms
20,480 KB
testcase_06 AC 44 ms
20,096 KB
testcase_07 AC 85 ms
25,600 KB
testcase_08 AC 392 ms
41,088 KB
testcase_09 AC 161 ms
30,464 KB
testcase_10 AC 60 ms
24,320 KB
testcase_11 AC 79 ms
24,320 KB
testcase_12 AC 41 ms
19,968 KB
testcase_13 AC 110 ms
24,192 KB
testcase_14 AC 59 ms
24,224 KB
testcase_15 AC 68 ms
24,960 KB
testcase_16 AC 68 ms
24,704 KB
testcase_17 AC 367 ms
40,320 KB
testcase_18 AC 1,160 ms
42,544 KB
testcase_19 AC 959 ms
43,720 KB
testcase_20 AC 45 ms
20,992 KB
testcase_21 AC 690 ms
41,632 KB
testcase_22 AC 589 ms
42,316 KB
testcase_23 TLE -
testcase_24 -- -
testcase_25 -- -
testcase_26 -- -
testcase_27 -- -
testcase_28 -- -
testcase_29 -- -
testcase_30 -- -
testcase_31 -- -
testcase_32 -- -
testcase_33 -- -
testcase_34 -- -
testcase_35 -- -
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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

diff # 

using System;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Numerics;
using System.Text;
using static System.Convert;
using static System.Math;
using static Constants;
using static Extensions;
using static MathExtensions;

public static class Program
{
    public static void Solve()
    {
        var (h, w) = (I, I);
        var a = new Grid2D<int>(Repeat(h, () => Repeat(w, () => I).ToArray()).ToArray());
        var q = I;

        var cnt0 = Point2D.InnerPoints(a.Size).Count(p => a[p] == 0);

        foreach (var i in Range(q))
        {
            var (r, c, x) = (I - 1, I - 1, I);

            if (cnt0 == h * w)
            {
                if (x == 1) cnt0 = 0;
                continue;
            }
            else if (cnt0 == 0)
            {
                if (x == 0) cnt0 = h * w;
                continue;
            }

            var src = new Point2D(r, c);
            var srcClr = a[src];

            if (srcClr == x) continue;

            var bfs = a.BreadthFirstSearch(src, p0 => a.NeumannNeighborhood(p0)
                .Where(p1 => a[p1] == srcClr));

            foreach (var state in bfs)
            {
                if (a[state.Point] == 0 && x == 1) cnt0--;
                if (a[state.Point] == 1 && x == 0) cnt0++;
                a[state.Point] = x;
            }
        }

        if (cnt0 == h * w)
        {
            foreach (var p in Point2D.InnerPoints(a.Size))
                a[p] = 0;
        }
        else if (cnt0 == 0)
        {
            foreach (var p in Point2D.InnerPoints(a.Size))
                a[p] = 1;
        }

        foreach (var i in Range(a.Height))
        {
            foreach (var j in Range(a.Width))
                Console.Write($"{a[i, j]} ");
            Console.WriteLine();
        }
    }

    #region Scanners
    static TextScanner _ts;
    static char C => char.Parse(_ts.Next());
    static string S => _ts.Next();
    static int I => int.Parse(_ts.Next());
    static long L => long.Parse(_ts.Next());
    static BigInteger B => BigInteger.Parse(_ts.Next());
    static double D => double.Parse(_ts.Next());
    static decimal M => decimal.Parse(_ts.Next());
    #endregion

    public static void Main()
    {
        var sw = new StreamWriter(Console.OpenStandardOutput());
        sw.NewLine = "\n";
#if DEBUG
        sw.AutoFlush = true;
#else
        sw.AutoFlush = false;
#endif
        Console.SetOut(sw);
        _ts = new TextScanner(Console.In);
        Solve();
        Console.Out.Flush();
    }
}

public static partial class Extensions
{
}

#pragma warning disable
public struct Point2D : IEquatable<Point2D>
{
    public Point2D(int y, int x)
    {
        this.Y = y;
        this.X = x;
    }

    public int Y { get; }

    public int X { get; }

    public static readonly Point2D Origin
        = new Point2D(0, 0);

    public static readonly IReadOnlyCollection<Point2D> NeumannNeighborhoodUnits
        = new[] { new Point2D(0, 1), new Point2D(1, 0), new Point2D(0, -1), new Point2D(-1, 0) };

    public static readonly IReadOnlyCollection<Point2D> MooreNeighborhoodUnits
        = new[] { new Point2D(-1, -1), new Point2D(-1, 0), new Point2D(-1, 1), new Point2D(0, -1), new Point2D(0, 1), new Point2D(1, -1), new Point2D(1, 0), new Point2D(1, 1) };

    public static IEnumerable<Point2D> InnerPoints(Point2D max)
        => InnerPoints(Origin, max);

    public static IEnumerable<Point2D> InnerPoints(Point2D min, Point2D max)
    {
        if (min.X > max.X || min.Y > max.Y) throw new ArgumentException();
        for (var i = min.Y; i < max.Y; i++)
            for (var j = min.X; j < max.X; j++)
                yield return new Point2D(i, j);
    }

    public static int ManhattanDistance(Point2D source, Point2D target)
        => System.Math.Abs(source.X - target.X) + System.Math.Abs(source.Y - target.Y);

    public static int ChebyshevDistance(Point2D source, Point2D target)
        => System.Math.Max(System.Math.Abs(source.X - target.X), System.Math.Abs(source.Y - target.Y));

    public static Point2D operator +(Point2D left, Point2D right)
        => new Point2D(left.Y + right.Y, left.X + right.X);

    public static Point2D operator -(Point2D left, Point2D right)
        => new Point2D(left.Y - right.Y, left.X - right.X);

    public static bool operator ==(Point2D left, Point2D right)
        => left.Equals(right);

    public static bool operator !=(Point2D left, Point2D right)
        => !left.Equals(right);

    public bool IsIn(Point2D max)
        => this.IsIn(Origin, max);

    public bool IsIn(Point2D min, Point2D max)
    {
        if (min.X > max.X || min.Y > max.Y) throw new ArgumentException();
        return min.Y <= this.Y && this.Y < max.Y && min.X <= this.X && this.X < max.X;
    }

    public bool Equals(Point2D other)
        => this.Y == other.Y && this.X == other.X;

    public override bool Equals(object obj)
        => obj is Point2D ? this.Equals((Point2D)obj) : false;

    public override int GetHashCode()
        => (this.X << 16) ^ this.Y;

    public override string ToString()
        => $"{this.X} {this.Y}";
}

public partial class Grid2D<T>
{
    private T[] _grid;

    public Grid2D(int height, int width) : this(new Point2D(height, width)) { }

    public Grid2D(Point2D size)
    {
        _grid = new T[size.Y * size.X];
        this.Height = size.Y;
        this.Width = size.X;
        this.Size = size;
    }

    public Grid2D(T[][] grid)
    {
        this.Height = grid.Length;
        this.Width = grid.Max(r => r.Length);
        this.Size = new Point2D(this.Height, this.Width);
        _grid = new T[this.Height * this.Width];
        for (var i = 0; i < grid.Length; i++)
            for (var j = 0; j < grid[i].Length; j++)
                _grid[i * this.Width + j] = grid[i][j];
    }

    public int Height { get; }

    public int Width { get; }

    public Point2D Size { get; }

    public T this[int i, int j]
    {
        get { return _grid[i * this.Width + j]; }
        set { _grid[i * this.Width + j] = value; }
    }

    public T this[Point2D point]
    {
        get { return this[point.Y, point.X]; }
        set { this[point.Y, point.X] = value; }
    }
}

public partial class Grid2D<T>
{
    public IEnumerable<Point2D> NeumannNeighborhood(Point2D center)
        => this.Neighborhood(center, Point2D.NeumannNeighborhoodUnits);

    public IEnumerable<Point2D> MooreNeighborhood(Point2D center)
        => this.Neighborhood(center, Point2D.MooreNeighborhoodUnits);

    public IEnumerable<Point2D> Neighborhood(Point2D center, IEnumerable<Point2D> neighborhoodUnits)
    {
        foreach (var unit in neighborhoodUnits)
        {
            var nextPoint = center + unit;
            if (nextPoint.IsIn(this.Size))
                yield return nextPoint;
        }
    }
}

public partial class Grid2D<T>
{
    public class SearchState
    {
        public SearchState(int distance, Point2D point, SearchState previous)
        {
            this.Distance = distance;
            this.Point = point;
            this.Previous = previous;
        }

        public int Distance { get; }

        public Point2D Point { get; }

        public SearchState Previous { get; }
    }

    public IEnumerable<SearchState> BreadthFirstSearch(Point2D source, Func<Point2D, IEnumerable<Point2D>> nextPointsSelector)
        => this.BreadthFirstSearch(source, nextPointsSelector, (s, t) => 1);

    public IEnumerable<SearchState> BreadthFirstSearch(Point2D source, Func<Point2D, IEnumerable<Point2D>> nextPointsSelector, Func<Point2D, Point2D, int> distanceSelector)
    {
        var queue = new Queue<SearchState>();
        var visited = new HashSet<Point2D>();
        var firstState = new SearchState(0, source, null);
        queue.Enqueue(firstState);
        visited.Add(firstState.Point);

        while (queue.Any())
        {
            var currentState = queue.Dequeue();
            yield return currentState;

            foreach (var nextPoint in nextPointsSelector(currentState.Point))
            {
                if (!visited.Add(nextPoint)) continue;
                var nextState = new SearchState(currentState.Distance + distanceSelector(currentState.Point, nextPoint), nextPoint, currentState);
                queue.Enqueue(nextState);
            }
        }
    }
}

public class TextScanner
{
    private readonly TextReader _tr;

    public TextScanner(TextReader tr)
    {
        _tr = tr;
    }

    public string Next()
    {
        var sb = new StringBuilder();
        int i;
        do
        {
            i = _tr.Read();
            if (i == -1) throw new EndOfStreamException();
        }
        while (char.IsWhiteSpace((char)i));
        while (i != -1 && !char.IsWhiteSpace((char)i))
        {
            sb.Append((char)i);
            i = _tr.Read();
        }
        return sb.ToString();
    }
}

public static class Constants
{
    public const int AnswerToLifeTheUniverseAndEverything = 42;
    public const string Yes = "Yes";
    public const string No = "No";
    public const string YES = "YES";
    public const string NO = "NO";
    public const string Possible = "Possible";
    public const string Impossible = "Impossible";
    public const string POSSIBLE = "POSSIBLE";
    public const string IMPOSSIBLE = "IMPOSSIBLE";
}

[DebuggerStepThrough]
public static partial class Extensions
{
    public static void Answer(object value)
    {
        Console.WriteLine(value);
        Exit(0);
    }

    public static void Assert(bool condition)
    {
        if (!condition) throw new Exception("Assertion failed");
    }

    public static string AsString(this IEnumerable<char> source) => new string(source.ToArray());

    public static Dictionary<T, int> Bucket<T>(this IEnumerable<T> source) where T : IEquatable<T>
    {
        var dict = new Dictionary<T, int>();
        foreach (var item in source) if (dict.ContainsKey(item)) dict[item]++; else dict[item] = 1;
        return dict;
    }

    public static int[] Bucket<T>(this IEnumerable<T> source, int maxValue, Func<T, int> selector)
    {
        var arr = new int[maxValue + 1];
        foreach (var item in source) arr[selector(item)]++;
        return arr;
    }

    public static IComparer<T> CreateDescendingComparer<T>()
        where T : IComparable<T>
        => Comparer<T>.Create((x, y) => y.CompareTo(x));

    public static IEnumerable<int> CumSum(this IEnumerable<int> source)
    {
        var sum = 0;
        foreach (var item in source) yield return sum += item;
    }

    public static IEnumerable<long> CumSum(this IEnumerable<long> source)
    {
        var sum = 0L;
        foreach (var item in source) yield return sum += item;
    }

    public static void Exit(int exitCode)
    {
        Console.Out.Flush();
        Environment.Exit(exitCode);
    }

    public static void ForEach<T>(this IEnumerable<T> source, Action<T> action)
    {
        foreach (var item in source) action(item);
    }

    public static void ForEach<T, _>(this IEnumerable<T> source, Func<T, _> func)
    {
        foreach (var item in source) func(item);
    }

    public static void ForEach<T>(this IEnumerable<T> source, Action<T, int> action)
    {
        var i = 0;
        foreach (var item in source) action(item, i++);
    }

    public static void ForEach<T, _>(this IEnumerable<T> source, Func<T, int, _> func)
    {
        var i = 0;
        foreach (var item in source) func(item, i++);
    }

    // [l, r)
    public static bool IsIn<T>(this T value, T l, T r)
        where T : IComparable<T>
    {
        if (l.CompareTo(r) > 0) throw new ArgumentException();
        return l.CompareTo(value) <= 0 && value.CompareTo(r) < 0;
    }

    public static IEnumerable<int> Range(int start, int end, int step = 1)
    {
        for (var i = start; i < end; i += step) yield return i;
    }

    public static IEnumerable<int> Range(int end) => Range(0, end);

    public static void Repeat(int count, Action action)
    {
        for (var i = 0; i < count; i++) action();
    }

    public static void Repeat(int count, Action<int> action)
    {
        for (var i = 0; i < count; i++) action(i);
    }

    public static IEnumerable<T> Repeat<T>(int count, Func<T> func)
    {
        for (var i = 0; i < count; i++) yield return func();
    }

    public static IEnumerable<T> Repeat<T>(int count, Func<int, T> func)
    {
        for (var i = 0; i < count; i++) yield return func(i);
    }

    public static void Swap<T>(ref T x, ref T y)
    {
        var tmp = x; x = y; y = tmp;
    }
}

[DebuggerStepThrough]
public static class MathExtensions
{
    public static int DivCeil(int left, int right)
        => left / right + (left % right == 0 ? 0 : 1);

    public static long DivCeil(long left, long right)
        => left / right + (left % right == 0L ? 0L : 1L);

    public static int Gcd(int left, int right)
    {
        int r;
        while ((r = left % right) != 0) { left = right; right = r; }
        return right;
    }

    public static long Gcd(long left, long right)
    {
        long r;
        while ((r = left % right) != 0L) { left = right; right = r; }
        return right;
    }

    public static BigInteger Gcd(BigInteger left, BigInteger right)
        => BigInteger.GreatestCommonDivisor(left, right);

    public static int HighestOneBit(int x)
    {
        x |= x >> 01;
        x |= x >> 02;
        x |= x >> 04;
        x |= x >> 08;
        x |= x >> 16;
        return x - (x >> 1);
    }

    public static long HighestOneBit(long x)
    {
        x |= x >> 01;
        x |= x >> 02;
        x |= x >> 04;
        x |= x >> 08;
        x |= x >> 16;
        x |= x >> 32;
        return x - (x >> 1);
    }

    public static int Lcm(int left, int right) => left / Gcd(left, right) * right;

    public static long Lcm(long left, long right) => left / Gcd(left, right) * right;

    public static BigInteger Lcm(BigInteger left, BigInteger right)
        => left / Gcd(left, right) * right;

    public static int Pow(int value, int exponent)
    {
        var r = 1;
        while (exponent > 0)
        {
            if ((exponent & 1) == 1) r *= value;
            value *= value;
            exponent >>= 1;
        }
        return r;
    }

    public static long Pow(long value, int exponent)
    {
        var r = 1L;
        while (exponent > 0)
        {
            if ((exponent & 1) == 1) r *= value;
            value *= value;
            exponent >>= 1;
        }
        return r;
    }

    public static long Fact(int value)
    {
        var r = 1L;
        for (var i = 2; i <= value; i++) r *= i;
        return r;
    }
}
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