好像您希望有人为您做功课.
无论如何，如果您在Internet上搜索，则会发现许多文章/讨论/实现此问题的方法.

这是我得到的第一个搜索结果- http://code -heaven.blogspot.in/2009/05/c-program-to-implement-boundary-fill.html [

Looks like you want someone to do your homework for you.
Anyway, if you search on the internet, you will find a number of articles / discussions / ways to do implement this.

This was the first search result I got - http://code-heaven.blogspot.in/2009/05/c-program-to-implement-boundary-fill.html[^].