#790776 (C++17) No.5006 Hidden Maze

提出ソース

結果

問題	No.5006 Hidden Maze
ユーザー	👑 p-adic
提出日時	2022-08-20 11:48:07
言語	C++17 (gcc 12.3.0 + boost 1.83.0)
結果	AC
実行時間	94 ms / 2,000 ms
コード長	4,271 bytes
コンパイル時間	686 ms
実行使用メモリ	22,868 KB
スコア	0
平均クエリ数	1002.00
最終ジャッジ日時	2022-08-20 11:48:21
合計ジャッジ時間	14,313 ms
ジャッジサーバーID （参考情報）	judge12 / judge15
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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	75 ms 21,892 KB
testcase_01	AC	74 ms 22,796 KB
testcase_02	AC	76 ms 22,564 KB
testcase_03	AC	77 ms 21,952 KB
testcase_04	AC	81 ms 22,216 KB
testcase_05	AC	94 ms 21,880 KB
testcase_06	AC	84 ms 21,892 KB
testcase_07	AC	75 ms 21,928 KB
testcase_08	AC	75 ms 21,892 KB
testcase_09	AC	76 ms 21,928 KB
testcase_10	AC	76 ms 21,904 KB
testcase_11	AC	75 ms 22,216 KB
testcase_12	AC	75 ms 21,940 KB
testcase_13	AC	75 ms 22,608 KB
testcase_14	AC	74 ms 22,588 KB
testcase_15	AC	74 ms 21,904 KB
testcase_16	AC	76 ms 22,620 KB
testcase_17	AC	86 ms 21,768 KB
testcase_18	AC	76 ms 21,768 KB
testcase_19	AC	75 ms 21,952 KB
testcase_20	AC	75 ms 22,600 KB
testcase_21	AC	76 ms 22,608 KB
testcase_22	AC	76 ms 21,780 KB
testcase_23	AC	75 ms 21,928 KB
testcase_24	AC	75 ms 22,608 KB
testcase_25	AC	75 ms 22,588 KB
testcase_26	AC	75 ms 21,892 KB
testcase_27	AC	75 ms 21,952 KB
testcase_28	AC	76 ms 22,228 KB
testcase_29	AC	86 ms 21,780 KB
testcase_30	AC	76 ms 21,892 KB
testcase_31	AC	75 ms 22,216 KB
testcase_32	AC	75 ms 22,216 KB
testcase_33	AC	75 ms 22,716 KB
testcase_34	AC	75 ms 21,908 KB
testcase_35	AC	76 ms 22,704 KB
testcase_36	AC	76 ms 21,940 KB
testcase_37	AC	76 ms 22,444 KB
testcase_38	AC	76 ms 21,952 KB
testcase_39	AC	76 ms 21,756 KB
testcase_40	AC	81 ms 22,456 KB
testcase_41	AC	88 ms 21,856 KB
testcase_42	AC	75 ms 22,796 KB
testcase_43	AC	76 ms 21,880 KB
testcase_44	AC	75 ms 21,768 KB
testcase_45	AC	75 ms 21,892 KB
testcase_46	AC	75 ms 21,880 KB
testcase_47	AC	76 ms 21,880 KB
testcase_48	AC	75 ms 22,716 KB
testcase_49	AC	75 ms 22,868 KB
testcase_50	AC	75 ms 21,992 KB
testcase_51	AC	76 ms 21,756 KB
testcase_52	AC	86 ms 22,564 KB
testcase_53	AC	87 ms 21,940 KB
testcase_54	AC	76 ms 21,880 KB
testcase_55	AC	76 ms 22,456 KB
testcase_56	AC	76 ms 22,264 KB
testcase_57	AC	75 ms 22,444 KB
testcase_58	AC	75 ms 21,992 KB
testcase_59	AC	75 ms 21,892 KB
testcase_60	AC	75 ms 22,252 KB
testcase_61	AC	76 ms 22,576 KB
testcase_62	AC	76 ms 21,892 KB
testcase_63	AC	76 ms 22,444 KB
testcase_64	AC	84 ms 22,564 KB
testcase_65	AC	86 ms 21,940 KB
testcase_66	AC	75 ms 21,780 KB
testcase_67	AC	76 ms 21,916 KB
testcase_68	AC	75 ms 21,904 KB
testcase_69	AC	75 ms 22,252 KB
testcase_70	AC	76 ms 21,940 KB
testcase_71	AC	74 ms 21,768 KB
testcase_72	AC	76 ms 21,952 KB
testcase_73	AC	75 ms 22,716 KB
testcase_74	AC	75 ms 22,564 KB
testcase_75	AC	75 ms 21,904 KB
testcase_76	AC	80 ms 22,588 KB
testcase_77	AC	87 ms 22,552 KB
testcase_78	AC	76 ms 22,444 KB
testcase_79	AC	75 ms 21,892 KB
testcase_80	AC	75 ms 21,928 KB
testcase_81	AC	75 ms 22,264 KB
testcase_82	AC	75 ms 21,916 KB
testcase_83	AC	75 ms 22,552 KB
testcase_84	AC	74 ms 22,564 KB
testcase_85	AC	75 ms 22,276 KB
testcase_86	AC	75 ms 21,808 KB
testcase_87	AC	76 ms 22,608 KB
testcase_88	AC	81 ms 21,892 KB
testcase_89	AC	85 ms 21,940 KB
testcase_90	AC	76 ms 21,928 KB
testcase_91	AC	75 ms 21,940 KB
testcase_92	AC	75 ms 21,756 KB
testcase_93	AC	75 ms 22,228 KB
testcase_94	AC	75 ms 21,928 KB
testcase_95	AC	76 ms 21,928 KB
testcase_96	AC	75 ms 21,892 KB
testcase_97	AC	74 ms 22,216 KB
testcase_98	AC	76 ms 22,204 KB
testcase_99	AC	76 ms 22,444 KB

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ソースコード

raw source code

#include <iostream>
#include <list>
#include <vector>
#include <string>
#include <stdio.h>
#include <stdint.h>
#include <iomanip>
using namespace std;

using uint = unsigned int;
using ll = long long;

#define CIN( LL , A ) LL A; cin >> A 
#define GETLINE( A ) string A; getline( cin , A ) 
#define GETLINE_SEPARATE( A , SEPARATOR ) string A; getline( cin , A , SEPARATOR ) 
#define FOR_LL( VAR , INITIAL , FINAL_PLUS_ONE ) for( ll VAR = INITIAL ; VAR < FINAL_PLUS_ONE ; VAR ++ ) 
#define FOR_ITR( ARRAY , ITR , END ) for( auto ITR = ARRAY .begin() , END = ARRAY .end() ; ITR != END ; ITR ++ ) 
#define REPEAT( HOW_MANY_TIMES ) FOR_LL( VARIABLE_FOR_REPEAT , 0 , HOW_MANY_TIMES ) 
#define RETURN( ANSWER ) cout << ( ANSWER ) << endl; return 0 
#define DOUBLE( PRECISION , ANSWER ) cout << fixed << setprecision( PRECISION ) << ( ANSWER ) << endl; return 0 
#define MIN( A , B ) A < B ? A : B;
#define MAX( A , B ) A < B ? B : A;
template <typename T> inline T Distance( const T& a , const T& b ){ return a < b ? b - a : a - b; }

#define H 20 
#define W 20 
#define H_minus 19 
#define W_minus 19 
#define T 1001 
#define K 401 

int main()
{

  constexpr const ll D = 0;
  constexpr const ll R = 1;
  constexpr const ll U = 2;
  constexpr const ll L = 3;
  const string direction[4] = { "D" , "R" , "U" , "L" };
  CIN( ll , H_dummy );
  CIN( ll , W_dummy );
  CIN( ll , p );
  bool wall[H][W][4] = {};
  FOR_LL( i , 0 , H ){
    wall[i][0][L] = true;
    wall[i][W-1][R] = true;
  }
  FOR_LL( j , 0 , W ){
    wall[0][j][U] = true;
    wall[H-1][j][D] = true;
  }
  ll fixed_length = 0;
  ll strategy[K] = {};
  ll coord_x[K] = {};
  ll coord_y[K] = {};
  FOR_LL( t , 0 , T ){
    FOR_LL( k , fixed_length + 1 , K ){
      const ll& x = coord_x[k];
      const ll& y = coord_y[k];
      bool (&w)[4] = wall[y][x];
      bool searching = true;
      const ll& s_k_prev = strategy[k-1];
      ll& s_k = strategy[k];
      s_k = ( s_k_prev + 3 ) % 4;
      for( ll d = 0 ; d < 4 && searching ; d++ ){
	if( ! w[s_k] ){
	  searching = false;
	} else {
	  s_k = ( s_k + 1 ) % 4;
	}
      }
      if( searching ){
	for( ll d = 0 ; d < 4 ; d++ ){
	  w[d] = ( x == 0 && d == L ) || ( x == W_minus && d == R ) || ( y == 0 && d == U ) || ( y == H_minus && d == D );
	  if( x > 0 ){
	    wall[y][x-1][R] = true;
	  }
	  if( x < H_minus ){
	    wall[y][x+1][L] = true;
	  }
	  if( y > 0 ){
	    wall[y-1][x][D] = true;
	  }
	  if( y < W_minus ){
	    wall[y+1][x][W] = true;
	  }
	}
	s_k = ( s_k_prev + 3 ) % 4;
	for( ll d = 0 ; d < 4 && searching ; d++ ){
	  if( ! w[s_k] ){
	    searching = false;
	  } else {
	    s_k = ( s_k + 1 ) % 4;
	  }
	}
      }
      coord_x[k+1] = x + ( s_k == L ? -1 : s_k == R ? 1 : 0 );
      coord_y[k+1] = y + ( s_k == U ? -1 : s_k == D ? 1 : 0 );
    }
    FOR_LL( k , 1 , K ){
      cout << direction[strategy[k]];
    }
    cout << endl;
    CIN( ll , length );
    if( length == -1 ){
      RETURN( 0 );
    }
    length++;
    if( fixed_length < length ){
      fixed_length = length;
      if( fixed_length < K ){
	const ll& x = coord_x[fixed_length];
	const ll& y = coord_y[fixed_length];
	const ll& s_fixed_length = strategy[fixed_length];
	wall[y][x][s_fixed_length] = true;
	if( s_fixed_length == D && y < H_minus ){
	  wall[y+1][x][U] = true;
	}
	if( s_fixed_length == R && x < W_minus ){
	  wall[y][x+1][L] = true;
	}
	if( s_fixed_length == U && y > 0 ){
	  wall[y-1][x][D] = true;
	}
	if( s_fixed_length == L && x > 0 ){
	  wall[y][x-1][R] = true;
	}
      }
      ll K0 = fixed_length + 1;
      FOR_LL( k , 1 , K0 ){
	const ll& x = coord_x[k];
	const ll& y = coord_y[k];
	FOR_LL( m , k + 1 , K0 ){
	  if( coord_x[m] == x && coord_y[m] == y ){
	    const ll& s_k = strategy[k];
	    wall[y][x][s_k] = true;
	    if( s_k == D && y < H_minus ){
	      wall[y+1][x][U] = true;
	    }
	    if( s_k == R && x < W_minus ){
	      wall[y][x+1][L] = true;
	    }
	    if( s_k == U && y > 0 ){
	      wall[y-1][x][D] = true;
	    }
	    if( s_k == L && x > 0 ){
	      wall[y][x-1][R] = true;
	    }
	    ll d = m - k;
	    FOR_LL( n , k + 1 , K0 ){
	      strategy[n] = strategy[n + d];
	      coord_x[n] = coord_x[n + d];
	      coord_y[n] = coord_y[n + d];
	    }
	    fixed_length -= d;
	    K0 -= d;
	  }
	}
      }
    }
  }
  return 0;
}

yukicoder

結果

テストケース

ソースコード