Problem3493--【Div3】树的直径模板题

3493: 【Div3】树的直径模板题

[Creator : ]
Time Limit : 1.000 sec  Memory Limit : 128 MB

SubmitSolved: 2Submit Num: 8Statistics

Description

Sample Input Copy 

5
1 2
2 4
4 5
2 3

Sample Output Copy 

3

Source/Category

图论 树 树的直径 DFS 
Submit