Problem I: Connection Problem I: Connection
Time Limit: 1 Sec Memory Limit: 128 MB
Submit: 444 Solved: 63
[Submit][Status][Web Board]Description
Input
Output
Sample Input
1
7 3
0 2
4 0
2 0
4 2
1 3
0 5
4 4
2 4 1 2
3 3 3 6 7
3 9 2 4 5
Sample Output
17
HINT
[Submit][Status]
