bool IsOK(double pay)
{
var es = new Edge[E];
for (var i = 0; i < E; i++)
{
es[i] = new Edge(a[i], b[i], c[i] - t[i] * pay);
}
Array.Sort(es);
var uf = new UnionFindTree(V);
var total = 0.0;
foreach (var e in es)
{
if (e.c <= 0 || !uf.IsSameCategory(e.a, e.b))
{
uf.UniteCategory(e.a, e.b);
total += e.c;
if (total > 0)
{
break;
}
}
}
return(total <= 0);
}
/// <summary>
/// メイン処理をここに書く
/// </summary>
void SolveOne()
{
int n = sc.nextInt();
int m = sc.nextInt();
int[][] ls = new int[n][];
UnionFindTree u = new UnionFindTree(m + 1);
for (int i = 0; i < n; i++)
{
int ki = sc.nextInt();
ls[i] = sc.nextInt(ki);
if (ki > 1)
{
for (int lang = 1; lang < ki; lang++)
{
u.UniteCategory(ls[i][0], ls[i][lang]);
}
}
}
bool ok = true;
for (int man = 1; man < n; man++)
{
if (u.IsSameCategory(ls[0][0], ls[man][0]) == false)
{
ok = false;
}
}
pr.WriteLine(ok);
}
void Solve()
{
var I = G;
int V = I[0], E = I[1];
var es = new int[E][];
for (var i = 0; i < E; i++)
{
es[i] = G;
}
var uf = new UnionFindTree(V);
var ans = new long[E];
var sum = V * (V - 1L) / 2;
for (var i = E - 1; i >= 0; i--)
{
ans[i] = sum;
int u = es[i][0] - 1, v = es[i][1] - 1;
if (!uf.IsSameCategory(u, v))
{
sum -= uf.GetSize(u) * (long)uf.GetSize(v);
uf.UniteCategory(u, v);
}
}
for (var i = 0; i < E; i++)
{
WriteLine(ans[i]);
}
}
/// <summary>
/// メイン処理をここに書く
/// </summary>
void SolveOne()
{
int n = sc.nextInt();
int m = sc.nextInt();
int[] p = sc.nextInt(n);
for (int i = 0; i < n; i++)
{
p[i]--;
}
int[] x = new int[m];
int[] y = new int[m];
UnionFindTree uf = new UnionFindTree(n);
for (int i = 0; i < m; i++)
{
x[i] = sc.nextInt() - 1;
y[i] = sc.nextInt() - 1;
uf.UniteCategory(x[i], y[i]);
}
int ans = 0;
for (int i = 0; i < n; i++)
{
if (uf.IsSameCategory(p[i], i))
{
ans++;
}
}
Console.WriteLine(ans);
}
void Solve()
{
var I = G();
int N = I[0], M = I[1];
var es = new Edge[M + N];
for (var i = 0; i < N; i++)
{
es[i] = new Edge(i, N, F());
}
for (var i = 0; i < M; i++)
{
I = G();
es[N + i] = new Edge(I[0] - 1, I[1] - 1, I[2]);
}
Array.Sort(es);
var uf = new UnionFindTree(N + 1);
var sum = 0L;
var c = 0;
foreach (var e in es)
{
if (!uf.IsSameCategory(e.From, e.To))
{
uf.UniteCategory(e.From, e.To);
sum += e.Cost;
if (++c == N)
{
break;
}
}
}
WriteLine(sum);
}
void Solve()
{
//var start = DateTime.Now;
ps = new double[N, D];
hash = new Bits[N];
Generate((uint)F());
var es = new List <Edge>();
for (var i = 0; i < N; i++)
{
for (var j = i + 1; j < N; j++)
{
if (hash[i].Distance(hash[j]) < 92)
{
es.Add(new Edge(i, j, Cost(i, j)));
}
}
}
es.Sort();
var uf = new UnionFindTree(5000);
var cost = 0.0;
var k = 0;
foreach (var e in es)
{
if (!uf.IsSameCategory(e.From, e.To))
{
cost += e.Cost;
uf.UniteCategory(e.From, e.To);
Console.WriteLine("{0} {1}", e.From + 1, e.To + 1);
if (++k == N - 1)
{
break;
}
}
}
for (var i = 1; i < N; i++)
{
if (!uf.IsSameCategory(0, i))
{
throw new Exception();
}
}
//Console.WriteLine(cost);
//var end = DateTime.Now;
//Console.WriteLine("{0}", (end - start).TotalSeconds);
}
void Solve()
{
var I = G();
int N = I[0], Q = I[1];
var uf = new UnionFindTree(2 * N);
for (var i = 0; i < Q; i++)
{
I = G();
int x = I[1] - 1, y = I[2] - 1, z = I[3] % 2;
if (I[0] == 1)
{
uf.UniteCategory(2 * x, 2 * y + z);
uf.UniteCategory(2 * x + 1, 2 * y + (1 - z));
}
else
{
WriteLine(uf.IsSameCategory(2 * x, 2 * y) ? "YES" : "NO");
}
}
}
bool IsOK(double pay)
{
var es = new Tuple <int, int, double> [E];
for (var i = 0; i < E; i++)
{
es[i] = new Tuple <int, int, double>(a[i], b[i], c[i] - t[i] * pay);
}
Array.Sort(es, (x, y) => x.Item3.CompareTo(y.Item3));
var uf = new UnionFindTree(V);
var total = 0.0;
foreach (var e in es)
{
if (e.Item3 <= 0 || !uf.IsSameCategory(e.Item1, e.Item2))
{
uf.UniteCategory(e.Item1, e.Item2);
total += e.Item3;
}
}
return(total <= 0);
}
/// <summary>
/// メイン処理をここに書く
/// </summary>
void SolveOne()
{
n = sc.nextInt();
a = sc.nextInt() - 1;
b = sc.nextInt() - 1;
x = new int[n];
y = new int[n];
u = new UnionFindTree(n);
for (int i = 0; i < n; i++)
{
x[i] = sc.nextInt();
y[i] = sc.nextInt();
}
int d = Dist(a, b);
for (int i = 0; i < n; i++)
{
for (int j = 0; j < i; j++)
{
if (Dist(i, j) == d)
{
u.UniteCategory(i, j);
}
}
}
long reach = 0;
for (int i = 0; i < n; i++)
{
if (u.IsSameCategory(a, i))
{
reach++;
}
}
long ans = reach * (reach - 1) / 2;
Console.WriteLine(ans);
}
void Solve()
{
var I = G;
N = I[0];
M = I[1];
es = new Tuple <int, int> [M];
for (var i = 0; i < M; i++)
{
I = G;
es[i] = new Tuple <int, int>(I[0], I[1]);
}
Q = F;
qs = new Tuple <int, int, int> [Q];
for (var i = 0; i < Q; i++)
{
I = G;
qs[i] = new Tuple <int, int, int>(I[0], I[1], I[2]);
}
{
var i = 1;
while (i < M)
{
i <<= 1;
}
var tmp = new Tuple <int, int> [i];
for (var j = 0; j < M; j++)
{
tmp[j] = new Tuple <int, int>(es[j].Item1 - 1, es[j].Item2 - 1);
}
for (var j = M; j < i; j++)
{
tmp[j] = new Tuple <int, int>(0, 0);
}
es = tmp; M = i;
for (var j = 0; j < Q; j++)
{
qs[j] = new Tuple <int, int, int>(qs[j].Item1 - 1, qs[j].Item2 - 1, qs[j].Item3);
}
}
var log = MSB((uint)M);
var seg = new List <int> [2 * M - 1];
for (var i = 0; i < 2 * M - 1; i++)
{
seg[i] = new List <int>();
}
var node = 0;
for (var i = 0; i < Q; i++)
{
seg[node].Add(i);
}
for (var i = 0; i < log; i++)
{
var uf = new UnionFindTree(N);
var mod = 1 << (log - i);
var e = 0;
for (var j = mod >> 1; j < M; j += mod)
{
for (; e < j; e++)
{
uf.UniteCategory(es[e].Item1, es[e].Item2);
}
foreach (var q in seg[node])
{
int x = qs[q].Item1, y = qs[q].Item2, z = qs[q].Item3, w = 0;
if (uf.IsSameCategory(x, y))
{
w = uf.GetSize(x);
}
else
{
w = uf.GetSize(x) + uf.GetSize(y);
}
if (w >= z)
{
seg[2 * node + 1].Add(q);
}
else
{
seg[2 * node + 2].Add(q);
}
}
seg[node].Clear();
node++;
}
}
var ans = new int[Q];
for (var i = M - 1; i < 2 * M - 1; i++)
{
foreach (var x in seg[i])
{
ans[x] = i - M + 1;
}
}
for (var i = 0; i < Q; i++)
{
WriteLine(ans[i] + 1);
}
}
