public void Solve()
{
int N = NextInt();
var g = new CostGraph(N);
(N - 1).REP(i =>
{
int ai = NextInt() - 1, bi = NextInt() - 1;
g.Add(ai, bi, 1, false);
});
var dist = new int[2, N];
2.REP(i => N.REP(j => dist[i, j] = int.MaxValue));
Action <int, int, int> dfs = null;
dfs = (crr, dis, fs) =>
{
if (dist[fs, crr] != int.MaxValue)
{
return;
}
dist[fs, crr] = dis;
foreach (var edge in g.Adjacency[crr])
{
dfs(edge.To, dis + 1, fs);
}
};
dfs(0, 0, 0);
dfs(N - 1, 0, 1);
var fc = 0;
var sc = 0;
for (int i = 0; i < N; i++)
{
if (dist[0, i] <= dist[1, i])
{
fc++;
}
else
{
sc++;
}
}
if (fc > sc)
{
"Fennec".WL();
}
else
{
"Snuke".WL();
}
return;
}
public void Solve()
{
var N = NextInt();
var graph = new CostGraph(N);
(N - 1).REP(i => {
int ai = NextInt(), bi = NextInt();
ai--;
bi--;
graph.Add(ai, bi, 1, false);
});
var distances = new int[2, N];
2.REP(i => N.REP(j => distances[i, j] = int.MaxValue));
Func <int, int, int, bool> dfs = null;
dfs = (current, distance, phase) => {
if (distances[phase, current] != int.MaxValue)
{
return(true);
}
distances[phase, current] = distance;
foreach (var edge in graph.Adjacency[current])
{
dfs(edge.To, distance + 1, phase);
}
return(true);
};
dfs(0, 0, 0);
dfs(N - 1, 0, 1);
int fcnt = 0, scnt = 0;
N.REP(i => {
if (distances[0, i] <= distances[1, i])
{
fcnt++;
}
else
{
scnt++;
}
});
(fcnt > scnt?"Fennec":"Snuke").WL();
return;
}