fifteen.c - shared from CS50 IDE

fifteen.c

void init(void)
   {
    // TODO
    int k=(d*d)-1;
    for(int i=0;i<d;i++)
    {
    for(int j=0;j<d;j++)  
    {
      board[i][j]=k--;  
    }
    }
      if(board[3][1]==2 && board[3][2]==1)  
      me_swap(&board[3][1], &board[3][2]);
    
   }
   
 /**
 * Prints the board in its current state.
 */
void draw(void)
{
    // TODO
    
    for(int i=0;i<d;i++)
    {
    for(int j=0;j<d;j++)  
    {
      
    if(board[i][j]==0)
    {
        board[i][j]='_';
     printf("%c  \t",board[i][j]);       
    }
    else
    {
      printf("%2d \t ",board[i][j]);  
    }
    }
    printf("\n");
    }
}
  
/**
 * If tile borders empty space, moves tile and returns true, else
 * returns false. 
 */
bool move(int tile)
{
    // TODO

    for(int i=0;i<d;i++)
    {
    for(int j=0;j<d;j++)  
    {
      if(tile==board[i][j])
        {
            int blank_space='_';
            if(board[i-1][j]==blank_space)
            {
               me_swap(&board[i][j],&board[i-1][j]);
               return true;
            }
            if( board[i][j-1]==blank_space)
            {
              me_swap(&board[i][j-1],&board[i][j]);
              return true;
            }
            if(board[i+1][j]==blank_space )
            {
                me_swap(&board[i][j],&board[i+1][j]);
                return true;
            }
            if(board[i][j+1]==blank_space)
            
            {
              me_swap(&board[i][j],&board[i][j+1]);
             return true;
            }
        
           
        }
      
    }
    
    }
    
return false;
}