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你好In Reply To:雁过留声 Posted by:B10330224 at 2013-12-26 17:38:48 > 找一个果园的边界点往边界做射线 > 两次bfs分别从射线的两个方向到达射线 > 两次相加就是一个回路 Followed by: Post your reply here: |
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