grass_planting.cpp
#include <bits/stdc++.h>
using namespace std;
int main(){
ios::sync_with_stdio(0);
cin.tie(0);
int n; cin >> n;
vector<int> deg(n + 1, 0);
for (int i = 0; i < n - 1; i++){
int a, b; cin >> a >> b;
deg[a]++;
deg[b]++;
}
int mx = 0;
for (int i = 1; i <= n; i++){
if (deg[i] > mx){
mx = deg[i];
}
}
cout << mx + 1 << '\n';
return 0;
}