Problem 1177 --Spanning Tree 1.01177: Spanning Tree 1.0
Time Limit: 1 Sec Memory Limit: 128 MB
Submit: 800 Solved: 259
[Submit][Status][Web Board]Description
Input
Output
Sample Input
1
4 5
1 2 1
1 3 2
1 4 3
3 4 2
2 3 2
Sample Output
5
HINT
Source
[Submit][Status]
