Submission #6438134

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Source Code Expand

if __name__ == '__main__':
  check_flag = True
  
  h, w = map(int, input().split())
  s = []
  
  s.append('.' + '.' * w + '.')
  for i in range(h):
      s.append('.' + input() + '.')
  s.append('.' + '.' * w + '.')
  

  for i in range(h):
      for j in range(w):
          target_cell = ''
          if s[i + 1][j + 1] == '#':
            target_cell += s[i+1][j:j+3]
            target_cell += s[i][j+1]
            target_cell += s[i+2][j+1]
              
            if target_cell.count('#') == 1:
                check_flag = False
                break
      if not check_flag:
          break

  if check_flag:
      print('Yes')
  else:
      print('No')
          

Submission Info

Judge Result