結果

問題 No.367 ナイトの転身
ユーザー 👑 hos.lyrichos.lyric
提出日時 2019-04-08 17:02:41
言語 D
(dmd 2.106.1)
結果
CE  
(最新)
AC  
(最初)
実行時間 -
コード長 3,881 bytes
コンパイル時間 406 ms
コンパイル使用メモリ 115,144 KB
最終ジャッジ日時 2024-06-13 04:57:08
合計ジャッジ時間 777 ms
ジャッジサーバーID
（参考情報） 		judge1 / judge5
このコードへのチャレンジ
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コンパイルエラー時のメッセージ・ソースコードは、提出者また管理者しか表示できないようにしております。（リジャッジ後のコンパイルエラーは公開されます）
ただし、clay言語の場合は開発者のデバッグのため、公開されます。

コンパイルメッセージ
/home/linuxbrew/.linuxbrew/opt/dmd/include/dlang/dmd/std/algorithm/mutation.d(1469): Error: cannot modify `const` expression `target`
/home/linuxbrew/.linuxbrew/opt/dmd/include/dlang/dmd/std/algorithm/mutation.d(1265): Error: template instance `std.algorithm.mutation.moveEmplaceImpl!(const(int))` error instantiating
/home/linuxbrew/.linuxbrew/opt/dmd/include/dlang/dmd/std/algorithm/mutation.d(1190):        instantiated from here: `moveImpl!(const(int))`
/home/linuxbrew/.linuxbrew/opt/dmd/include/dlang/dmd/std/container/dlist.d(223):        instantiated from here: `move!(const(int))`
/home/linuxbrew/.linuxbrew/opt/dmd/include/dlang/dmd/std/container/dlist.d(761):        instantiated from here: `createNode!(const(int))`
/home/linuxbrew/.linuxbrew/opt/dmd/include/dlang/dmd/std/container/dlist.d(461):        instantiated from here: `insertBeforeNode!(const(int))`
Main.d(78):        instantiated from here: `insertBack!(const(int))`
/home/linuxbrew/.linuxbrew/opt/dmd/include/dlang/dmd/std/algorithm/mutation.d(1267): Error: template instance `std.algorithm.mutation.trustedMoveImpl!(const(int))` error instantiating
/home/linuxbrew/.linuxbrew/opt/dmd/include/dlang/dmd/std/algorithm/mutation.d(1190):        instantiated from here: `moveImpl!(const(int))`
/home/linuxbrew/.linuxbrew/opt/dmd/include/dlang/dmd/std/container/dlist.d(223):        instantiated from here: `move!(const(int))`
/home/linuxbrew/.linuxbrew/opt/dmd/include/dlang/dmd/std/container/dlist.d(761):        instantiated from here: `createNode!(const(int))`
/home/linuxbrew/.linuxbrew/opt/dmd/include/dlang/dmd/std/container/dlist.d(461):        instantiated from here: `insertBeforeNode!(const(int))`
Main.d(78):        instantiated from here: `insertBack!(const(int))`

ソースコード

diff # 

import std.conv, std.functional, std.stdio, std.string;
import std.algorithm, std.array, std.bigint, std.complex, std.container, std.math, std.numeric, std.range, std.regex, std.typecons;
import core.bitop;

class EOFException : Throwable { this() { super("EOF"); } }
string[] tokens;
string readToken() { for (; tokens.empty; ) { if (stdin.eof) { throw new EOFException; } tokens = readln.split; } auto token = tokens.front; tokens.popFront; return token; }
int readInt() { return readToken.to!int; }
long readLong() { return readToken.to!long; }
real readReal() { return readToken.to!real; }

bool chmin(T)(ref T t, in T f) { if (t > f) { t = f; return true; } else { return false; } }
bool chmax(T)(ref T t, in T f) { if (t < f) { t = f; return true; } else { return false; } }

int binarySearch(alias pred, T)(in T[] as) { int lo = -1, hi = cast(int)(as.length); for (; lo + 1 < hi; ) { const mid = (lo + hi) >> 1; (unaryFun!pred(as[mid]) ? hi : lo) = mid; } return hi; }
int lowerBound(T)(in T[] as, T val) { return as.binarySearch!(a => (a >= val)); }
int upperBound(T)(in T[] as, T val) { return as.binarySearch!(a => (a > val)); }


enum DX = [[+2, +1, -1, -2, -2, -1, +1, +2], [+1, -1, -1, +1]];
enum DY = [[+1, +2, +2, +1, -1, -2, -2, -1], [+1, +1, -1, -1]];

int H, W;
string[] S;

void main() {
  try {
    for (; ; ) {
      H = readInt();
      W = readInt();
      S = new string[H];
      foreach (x; 0 .. H) {
        S[x] = readToken();
      }
      
      auto q = DList!int();
      auto d = new int[][][](H, W, 2);
      foreach (x; 0 .. H) foreach (y; 0 .. W) {
        d[x][y][] = H * W * 2;
      }
      foreach (x; 0 .. H) foreach (y; 0 .. W) {
        if (S[x][y] == 'S') {
          d[x][y][0] = 0;
          q.insertBack(x);
          q.insertBack(y);
          q.insertBack(0);
        }
      }
      int ans = -1;
      for (; !q.empty; ) {
        const x = q.front; q.removeFront;
        const y = q.front; q.removeFront;
        const z = q.front; q.removeFront;
        const c = d[x][y][z];
        if (S[x][y] == 'G') {
          ans = c;
          break;
        }
        /*
        foreach (dir; 0 .. DX[z].length) {
          const xx = x + DX[z][dir];
          const yy = y + DY[z][dir];
          if (0 <= xx && xx < H && 0 <= yy && yy < W) {
            const zz = (S[xx][yy] == 'R') ? (z ^ 1) : z;
            if (chmin(d[xx][yy][zz], c + 1)) {
              q.insertBack(xx);
              q.insertBack(yy);
              q.insertBack(zz);
            }
          }
        }
        */
        void check(int xx, int yy) {
          const zz = (S[xx][yy] == 'R') ? (z ^ 1) : z;
          if (chmin(d[xx][yy][zz], c + 1)) {
            q.insertBack(xx);
            q.insertBack(yy);
            q.insertBack(zz);
          }
        }
        switch (z) {
          case 0: {
            if (x + 1 < H) {
              if (y + 2 < W) check(x + 1, y + 2);
              if (y - 2 >= 0) check(x + 1, y - 2);
              if (x + 2 < H) {
                if (y + 1 < W) check(x + 2, y + 1);
                if (y - 1 >= 0) check(x + 2, y - 1);
              }
            }
            if (x - 1 >= 0) {
              if (y + 2 < W) check(x - 1, y + 2);
              if (y - 2 >= 0) check(x - 1, y - 2);
              if (x - 2 >= 0) {
                if (y + 1 < W) check(x - 2, y + 1);
                if (y - 1 >= 0) check(x - 2, y - 1);
              }
            }
          } break;
          case 1: {
            if (x + 1 < H) {
              if (y + 1 < W) check(x + 1, y + 1);
              if (y - 1 >= 0) check(x + 1, y - 1);
            }
            if (x - 1 >= 0) {
              if (y + 1 < W) check(x - 1, y + 1);
              if (y - 1 >= 0) check(x - 1, y - 1);
            }
          } break;
          default: assert(false);
        }
      }
      writeln(ans);
    }
  } catch (EOFException e) {
  }
}
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