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(数据)同学们,有一些求点双的方法是错的——给数据!!!!!

Posted by 16263 at 2016-10-31 15:41:43 on Problem 2942 and last updated at 2016-10-31 15:42:40
比如光把割点拎出来是不对的。一定要用栈来记录点双,数据如下:
12 51
1 3
1 5
1 6
1 7
1 8
1 9
1 10
1 11
1 12
2 4
2 5
2 6
2 7
2 8
2 9
2 10
2 11
2 12
3 5
3 6
3 7
3 10
3 11
3 12
4 5 
4 6
4 7
4 8
4 9
4 10
4 11
4 12
5 7
5 9
5 10
5 11
5 12
6 8
6 9
6 10
6 11
6 12
7 9
7 10
7 11
7 12
8 10
8 11
8 12
9 11
10 12
0 0

ans=9;

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