Naruto and One Shot SOLUTIONS ECAUG207

Naruto and One Shot SOLUTIONS ECAUG207

There are N towns numbered 1 to N. The towns are associated through bi-directional ways in the middle of them. The entire system is as a tree. 

Every town has just 1 warrior however they help each other in the midst of emergency by sending their contender to the town in peril through ways along the towns. Crushing a contender will mean overcoming his town. Specifically, If town X is enduring an onslaught, all towns having a way to X will send their warriors for help. 

Naruto needs to overcome all the towns. However, he can’t take on endless contenders simultaneously so he intends to utilize a mystery procedure with which he can demolish any 1 town (alongside ways associated with it) in a split second. In any case, it tends to be utilized just a single time. He understood that in the event that he crushes any town, state X, the greatest number of warriors he needs to battle without a moment’s delay lessens to W. He needs W to be as little as could reasonably be expected. Assist him with finding the ideal X. 

If there should be an occurrence of numerous answers, pick the littlest estimation of X. 

 

Info: 

First line will contain T, number of testcases. At that point the testcases follow. 

First Line contains N. 

Next N−1 lines contain U,V, signifying a way between town U and V. 

 

Yield: 

For each Test case, print in another line, ideal X and relating estimation of W. 

 

Limitations 

1≤T≤10 

3≤N≤105 

1≤U,V≤N 

U!=V 

 

Test Input: 

1 2 

1 3 

2 4 

3 5 

1 2 

2 3 

 

Test Output: 

1 2 

2 1 

 

Clarification: 

Test 1: By pulverizing town 1, The contenders Naruto will be battling simultaneously will be from towns [2,4] and [3,5]. For this W = 2. No other decision can give lesser W. Henceforth 1 is ideal decision.

 

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