結果
| 問題 |
No.1638 Robot Maze
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2021-08-06 21:56:10 |
| 言語 | C#(csc) (csc 3.9.0) |
| 結果 |
AC
|
| 実行時間 | 35 ms / 2,000 ms |
| コード長 | 3,900 bytes |
| コンパイル時間 | 3,728 ms |
| コンパイル使用メモリ | 115,508 KB |
| 実行使用メモリ | 29,296 KB |
| 最終ジャッジ日時 | 2024-09-17 01:53:57 |
| 合計ジャッジ時間 | 5,274 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 49 |
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 static System.Console;
using System.Linq;
class yuki308
{
static int NN => int.Parse(ReadLine());
static int[] NList => ReadLine().Split().Select(int.Parse).ToArray();
static long[] LList => ReadLine().Split().Select(long.Parse).ToArray();
static string[] SList(int n) => Enumerable.Repeat(0, n).Select(_ => ReadLine()).ToArray();
static void Main()
{
var c = NList;
var (h, w) = (c[0], c[1]);
var n = LList;
var (u, d, r, l, k, p) = ((int)n[0], (int)n[1], (int)n[2], (int)n[3], n[4], n[5]);
c = NList;
var (xs, ys, xt, yt) = (c[0] - 1, c[1] - 1, c[2] - 1, c[3] - 1);
var map = SList(h);
var move = new int[][] { new[] { 0, -1, l }, new[] { 0, 1, r }, new[] { -1, 0, u }, new[] { 1, 0, d } };
var list = Enumerable.Repeat(long.MaxValue, h * w).ToArray();
var q = new PriorityQueue<Pair>(300, false);
q.Enqueue(new Pair(Key(xs, ys, w), 0));
list[Key(xs, ys, w)] = 0;
while (q.Count > 0)
{
var cur = q.Dequeue();
if (list[cur.Pos] != cur.Val) continue;
foreach (var m in move)
{
var nx = cur.Pos / w + m[0];
var ny = cur.Pos % w + m[1];
var ncost = cur.Val + m[2];
if (nx < 0 || nx >= h || ny < 0 || ny >= w) continue;
if (map[nx][ny] == '#') continue;
if (map[nx][ny] == '@') ncost += p;
var npos = Key(nx, ny, w);
if (list[npos] <= ncost) continue;
list[npos] = ncost;
q.Enqueue(new Pair(npos, ncost));
}
}
WriteLine(list[Key(xt, yt, w)] > k ? "No" : "Yes");
}
static int Key(int x, int y, int w)
{
return x * w + y;
}
class Pair : IComparable<Pair>
{
public int Pos;
public long Val;
public Pair(int pos, long val)
{
Pos = pos; Val = val;
}
public int CompareTo(Pair b)
{
return Val.CompareTo(b.Val);
}
}
class PriorityQueue<T> where T : IComparable<T>
{
public T[] List;
public int Count;
bool IsTopMax;
public PriorityQueue(int count, bool isTopMax)
{
IsTopMax = isTopMax;
List = new T[Math.Max(128, count)];
}
public void Enqueue(T value)
{
if (Count == List.Length)
{
var newlist = new T[List.Length * 2];
for (var i = 0; i < List.Length; ++i) newlist[i] = List[i];
List = newlist;
}
var pos = Count;
List[pos] = value;
++Count;
while (pos > 0)
{
var parent = (pos - 1) / 2;
if (Calc(List[parent], List[pos], true)) break;
Swap(parent, pos);
pos = parent;
}
}
public T Dequeue()
{
--Count;
Swap(0, Count);
var pos = 0;
while (true)
{
var child = pos * 2 + 1;
if (child >= Count) break;
if (child + 1 < Count && Calc(List[child + 1], List[child], false)) ++child;
if (Calc(List[pos], List[child], true)) break;
Swap(pos, child);
pos = child;
}
return List[Count];
}
bool Calc(T a, T b, bool equalVal)
{
var ret = a.CompareTo(b);
if (ret == 0 && equalVal) return true;
return IsTopMax ? ret > 0 : ret < 0;
}
void Swap(int a, int b)
{
var tmp = List[a];
List[a] = List[b];
List[b] = tmp;
}
}
}