#include namespace { #pragma GCC diagnostic ignored "-Wunused-function" #include #pragma GCC diagnostic warning "-Wunused-function" using namespace std; using namespace atcoder; #define rep(i,n) for(int i = 0; i < (int)(n); i++) #define rrep(i,n) for(int i = (int)(n) - 1; i >= 0; i--) #define all(x) begin(x), end(x) #define rall(x) rbegin(x), rend(x) template bool chmax(T& a, const T& b) { if (a < b) { a = b; return true; } else return false; } template bool chmin(T& a, const T& b) { if (b < a) { a = b; return true; } else return false; } using ll = long long; using P = pair; using VI = vector; using VVI = vector; using VL = vector; using VVL = vector; } int main() { ios::sync_with_stdio(false); cin.tie(0); int n; cin >> n; VVI to(n); rep(_, n - 1) { int u, v; cin >> u >> v; u--, v--; to[u].emplace_back(v); to[v].emplace_back(u); } constexpr int INF = 1001001001; auto dfs = [&](auto&& self, int u, int p, int d) -> P { vector

res; for (int v : to[u]) if (v != p) { auto r = self(self, v, u, d + 1); res.emplace_back(r); } if (res.empty()) return {0, 0}; if (d % 2 == 0) { P ans{-INF, INF}; for (auto [x, y] : res) { chmax(ans.first, x + 1); chmin(ans.second, y + 1); } return ans; } else { P ans{INF, -INF}; for (auto [x, y] : res) { chmin(ans.first, x + 1); chmax(ans.second, y + 1); } return ans; } }; auto [x, y] = dfs(dfs, 0, -1, 0); cout << x << '\n' << y << '\n'; }