Kata

Play Tetris : Shape anastomosis

About Tetris

Most people know that, so I ignore it, if you don't know, look here.

Task

Give you a "board" and a "block" ,find the shape anastomosis in the board, return its coordinates as a string. Example:

  Both board and block are given by 2D Array
  
     ■■■■
     ■□□■          □□
     ■□□■          □□    ===>    "[1,1],[1,2],[2,1],[2,2]"
     ■■■■
     board        block        its coordinates(if not found,return "")
  
    ■■■■■■
    ■■□□□■        □□□
    ■■□■■■        □■■    ===>    "[1,2],[1,3],[1,4],[2,2]"
    ■■■■■■
  
  please ignore the ■ in block, it's just to keep shape
  The returned string contains only the □'s coordinates
                 
    ■■●●●■              
    ■●□□□●     □□□
    ■●□●●■     □■■
    ■■●■■■
   
  Shape anastomosis means that the shape of the outer perimeter 
  is closed, look at the position of ● above

In addition, the returned coordinates are arranged in order from top to bottom, from left to right. If there are more than one to meet the conditions of the location, also in accordance with the above order.

Classic Games Series

• Play Tetris : Shape anastomosis
• Play FlappyBird : Advance Bravely
• Play BomberMan : Kill All Enemies (Released as soon as possible...)
• Play PacMan : Gourmet Haunt (Released as soon as possible...)
• Play LoodRunner : No Enemy Race (Released as soon as possible...)