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提供一组数据--很小的一组

Posted by ttang at 2013-01-24 01:02:38 on Problem 1830 and last updated at 2013-01-24 01:02:54 
3
3
1 0 1
0 0 0
1 3
2 3
0 0
4
0 0 0 0
1 0 1 0
1 4
2 3
2 4
3 4
0 0
4
0 0 0 0
1 1 0 0
1 2
0 0
-----------
答案是：
1
1
1
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