另类思路
- ###*### blackCount = 3 = 4 - 1 starCount = 1 = 1 * 2 - 1
- ##***## blackCount = 2 = 4 - 2 starCount = 3 = 2 * 2 - 1
- #*****# blackCount = 1 = 4 - 3 starCount = 5 = 3 * 2 - 1
- ******* blackCount = 0 = 4 - 4 starCount = 7 = 4 * 2 - 1
-
如上图，为了直观，使用#代表空格。
湘公网安备 43102202000103号
