Can you give me the answers for:
-------------------------------------
3
1 2 1
2 3 1
--------------------------------------
6
1 2 1
2 3 1
2 5 1
3 4 1
3 6 1
-------------------------------------
Can you give plz some more test data..?

1.3333 and 1.9333

7
1 2 1
2 3 1
3 5 1
2 4 1
1 6 1
6 7 1

2.3810