제출 #448487

#제출 시각아이디문제언어결과실행 시간메모리
448487BERNARB01Torrent (COI16_torrent)C++17
0 / 100
63 ms1484 KiB
#include <bits/stdc++.h>

using namespace std;

int main() {
	ios::sync_with_stdio(false);
	cin.tie(0);
	int n, a, b;
	cin >> n >> a >> b;
	--a; --b;
	vector<int> deg(n, 0);
	for (int i = 1; i < n; i++) {
		int u, v;
		cin >> u >> v;
		--u; --v;
		deg[u]++;
		deg[v]++;
	}
	int mx = 0;
	deg[a]--;
	deg[b]--;
	for (int i = 0; i < n; i++) {
		mx = max(mx, deg[i]);
	}
	cout << mx << '\n';
	return 0;
}
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