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  1.  
  2. program chasing;
  3. Uses Math;
  4.  
  5. var
  6.      Bs, Bx, By, Ds, Dx, Dy : LongInt;
  7.      dir                       : Char;
  8.      T : real;
  9. begin
  10.  
  11.     (*assign(input,  'input.txt');  reset(input);
  12.     assign(output, 'output.txt'); rewrite(output);*)
  13.  
  14.  
  15.     ReadLn(Dx, Dy, Ds);
  16.  
  17.     ReadLn(Bx, By, Bs);
  18.  
  19.     ReadLn(dir);
  20.  
  21.     T := 0;
  22.  
  23.  
  24.    if ((Dx>Bx) and (Dy<By)) and (Ds<Bs) and (dir='U') then T:=-1
  25.                                         else if ((Dx>Bx) and (Dy<By)) and (Ds<Bs) and (dir='L') then T:=-1
  26.                                                 else if ((Dx>Bx) and (Dy>By)) and (Ds<Bs) and (dir='D') then T:=-1
  27.                                                     else if ((Dx>Bx) and (Dy>By)) and (Ds<Bs) and (dir='L') then T:=-1
  28.                                                           else if ((Dx<Bx) and (Dy>By)) and (Ds<Bs) and (dir='D') then T:=-1
  29.                                                                else if ((Dx<Bx) and (Dy>By)) and (Ds<Bs) and (dir='R') then T:=-1
  30.                                                                       else if ((Dx<Bx) and (Dy<By)) and (Ds<Bs) and (dir='U') then T:=-1
  31.                                                                          else if ((Dx<Bx) and (Dy<By)) and (Ds<Bs) and (dir='R') then T:=-1
  32.                                                                              else 
  33.                                                                                begin
  34.                                                                                  if (dir='D') or (dir='L')  then Bs:=-Bs;
  35.                                                                                  if (dir='R') or (dir='L') then T:= (abs(Dy-By))/Ds + (abs(Dx-Bx)) / (abs (Ds-Bs))
  36.                                                                                           else if (dir='U') or (dir='D') then T:= (abs(Dx-Bx))/Ds + (abs(Dy-By)) / (abs (Ds-Bs)) ;
  37.  
  38.                                                                                 end;   
  39.    WriteLn(ceil(T));
  40.  
  41. end.
Success #stdin #stdout 0.01s 5288KB
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https://ideone.com/ycMiLy
language:
Pascal (fpc 3.0.4)
created:
9 hours ago
visibility:
public

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