Analysis
- If a 'o' grid region is completely surrounded by 'x' then it will be replaced as 'x'
- Traversal the non-surrounded 'o' region by dfs from 'o' grid lying at the edge of the board
- Label all the 'o' grid which is not being surrounded
- Replace all the 'o' grid which is not labeled
No comments:
Post a Comment
Enter you comment