Problem2640--图论DFS练习 - AIO05Sculpture

2640: 图论DFS练习 - AIO05Sculpture

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Time Limit : 1.000 sec  Memory Limit : 128 MB

SubmitSolved: 1Submit Num: 1Statistics

Description





Sample Input Copy 

9
2 3 3 4
4 1 5 2
6 3 7 2
0 0 0 0
0 0 0 0
8 1 9 1
0 0 0 0
0 0 0 0
0 0 0 0

Sample Output Copy 

6

Source/Category

图论 AIO DFS 
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