結果

問題 No.34 砂漠の行商人
ユーザー 紙ぺーぱー紙ぺーぱー
提出日時 2015-03-25 15:33:50
言語 C#(csc)
(csc 3.9.0)
結果
TLE  
実行時間 -
コード長 5,658 bytes
コンパイル時間 2,901 ms
コンパイル使用メモリ 109,444 KB
実行使用メモリ 190,728 KB
最終ジャッジ日時 2023-09-11 10:09:31
合計ジャッジ時間 16,582 ms
ジャッジサーバーID
(参考情報)
judge12 / judge14
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 56 ms
23,156 KB
testcase_01 AC 55 ms
21,148 KB
testcase_02 AC 79 ms
25,688 KB
testcase_03 AC 62 ms
23,348 KB
testcase_04 AC 856 ms
48,812 KB
testcase_05 AC 1,437 ms
68,656 KB
testcase_06 AC 482 ms
39,572 KB
testcase_07 AC 3,463 ms
123,892 KB
testcase_08 TLE -
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 -- -
権限があれば一括ダウンロードができます
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.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 hp = (short)sc.Integer();
            var sx = sc.Integer() - 1;
            var sy = sc.Integer() - 1;
            var gx = sc.Integer() - 1;
            var gy = sc.Integer() - 1;
            var map = Enumerate(n, x => sc.Integer(n));
            var dist = new int[n * n, n * n];
            dist[sx + sy * n, 0] = hp;
            var q = new Queue<State>();
            q.Enqueue(new State(sx + sy * n, 0, hp));
            int[] dx = { 0, 0, 1, -1 };
            int[] dy = { 1, -1, 0, 0 };
            while (q.Any())
            {
                var p = q.Dequeue();
                var py = p.pos / n;
                var px = p.pos % n;
                if (dist[py * n + px, p.dist] > p.hp)
                    continue;
                if (p.dist + 1 >= n * n)
                    continue;
                for (int i = 0; i < 4; i++)
                {
                    var ny = py + dy[i];
                    var nx = px + dx[i];
                    if (ny < 0 || ny >= n || nx < 0 || nx >= n)
                        continue;
                    var nhp = p.hp - map[ny][nx];
                    if (dist[ny * n + nx, p.dist + 1] < nhp)
                    {
                        dist[ny * n + nx, p.dist + 1] = nhp;
                        q.Enqueue(new State(ny * n + nx, p.dist + 1, nhp));
                    }
                }

            }
            for (int i = 0; i < n * n; i++)
                if (dist[gy * n + gx, i] > 0)
                {
                    IO.Printer.Out.WriteLine(i);
                    return;
                }
            IO.Printer.Out.WriteLine(-1);
        }

        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; }

    }


}

struct State
{
    public int pos;
    public int dist, hp;
    public State(int p, int d, int v)
        : this()
    {
        pos = p; dist = d; hp = v;

    }
}
#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; }
        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; } }
        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


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