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  1.             var lines = File.ReadAllLines(@"c:\map.txt");
  2.             var m = (from l in lines select l.Replace('S','0').ToCharArray()).ToArray();
  3.             int gx = -1, gy = -1, p = -1;
  4.             for (int n = 0; ; n++)
  5.             {
  6.                 bool loop = false;
  7.                 for (int y = 0; y < m.Length; y++)
  8.                     for (int x = 0; x < m[0].Length; x++)
  9.                         if (m[y][x] == n + '0')
  10.                         {
  11.                             if (m[y][x - 1] == 'G') { loop = false; gx = x - 1; gy = y; p = m[y][x]; break; }
  12.                             if (m[y][x + 1] == 'G') { loop = false; gx = x + 1; gy = y; p = m[y][x]; break; }
  13.                             if (m[y - 1][x] == 'G') { loop = false; gx = x; gy = y - 1; p = m[y][x]; break; }
  14.                             if (m[y + 1][x] == 'G') { loop = false; gx = x; gy = y + 1; p = m[y][x]; break; }
  15.                             char c = (char)(m[y][x] + 1);
  16.                             if (m[y][x - 1] == '.' || m[y][x - 1] > c) { loop = true; m[y][x - 1] = c; };
  17.                             if (m[y][x + 1] == '.' || m[y][x + 1] > c) { loop = true; m[y][x + 1] = c; };
  18.                             if (m[y - 1][x] == '.' || m[y - 1][x] > c) { loop = true; m[y - 1][x] = c; };
  19.                             if (m[y + 1][x] == '.' || m[y + 1][x] > c) { loop = true; m[y + 1][x] = c; };
  20.                         }                       
  21.                 if (!loop) break;
  22.             }
  23.             /*
  24.             for (int y = 0; y < m.Length; y++){
  25.                 for (int x = 0; x < m[0].Length; x++)
  26.                     Console.Write(m[y][x]);
  27.                 Console.Write(Environment.NewLine);
  28.             }
  29.             */
  30.             if (p == -1 ) { Console.WriteLine("no route"); return; }
  31.             string ret ="";
  32.             while (m[gy][gx] != '0')
  33.             {
  34.                 if (m[gy][gx - 1] == p) { gx = gx - 1; ret = 'r' + ret; p--; continue; }
  35.                 if (m[gy][gx + 1] == p) { gx = gx + 1; ret = 'l' + ret; p--; continue; }
  36.                 if (m[gy - 1][gx] == p) { gy = gy - 1; ret = 'd' + ret; p--; continue; }
  37.                 if (m[gy + 1][gx] == p) { gy = gy + 1; ret = 'u' + ret; p--; continue; }
  38.             }
  39.             Console.WriteLine(ret);
  40.             Console.ReadLine();
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin 
Standard input is empty
compilation info 
prog.cs(1,17): error CS0116: A namespace can only contain types and namespace declarations
prog.cs(2,17): error CS0116: A namespace can only contain types and namespace declarations
prog.cs(3,17): error CS0116: A namespace can only contain types and namespace declarations
prog.cs(4,15): error CS8025: Parsing error
Compilation failed: 4 error(s), 0 warnings
stdout 
Standard output is empty
https://ideone.com/uJYEx
language:
C# (gmcs 5.20.1)
created:
12 years ago
visibility:
public

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