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| #include<cmath>
#include<cstdio>
#include<cstring>
#include<iostream>
#include<algorithm>
using namespace std;
#define sqz main
#define ll long long
#define rep(i, a, b) for (int i = (a); i <= (b); i++)
#define per(i, a, b) for (int i = (a); i >= (b); i--)
#define Rep(i, a, b) for (int i = (a); i < (b); i++)
#define travel(i, u) for (int i = head[u]; ~i; i = edge[i].next)
const ll INF = 1e9, Mo = 998244353;
const int N = 300000;
const double eps = 1e-6;
namespace slow_IO
{
ll read()
{
ll x = 0; int zf = 1; char ch = getchar();
while (ch != '-' && (ch < '0' || ch > '9')) ch = getchar();
if (ch == '-') zf = -1, ch = getchar();
while (ch >= '0' && ch <= '9') x = x * 10 + ch - '0', ch = getchar();
return x * zf;
}
void write(ll y)
{
if (y < 0) putchar('-'), y = -y;
if (y > 9) write(y / 10);
putchar(y % 10 + '0');
}
}
using namespace slow_IO;
int n, m, edgenum = 0, num, idx;
int head[N + 5], Belong[N + 5], Size[N + 5], Rest[N + 5], Ans[N + 5], Dis[N + 5], Deep[N + 5], Fa[N + 5][20], X[N + 5], Y[N + 5], Z[N + 5], dfn[N + 5], stack[N + 5];
struct node
{
int vet, next;
}edge[2 * N + 5];
void addedge(int u, int v)
{
edge[edgenum].vet = v;
edge[edgenum].next = head[u];
head[u] = edgenum++;
}
int cmp(int x, int y) { return dfn[x] < dfn[y];}
void dfs(int u, int fa)
{
Size[u] = 1, Deep[u] = Deep[fa] + 1, dfn[u] = ++idx, Fa[u][0] = fa;
rep(i, 1, 19) Fa[u][i] = Fa[Fa[u][i - 1]][i - 1];
travel(i, u)
{
int v = edge[i].vet;
if (v == fa) continue;
dfs(v, u);
Size[u] += Size[v];
}
}
int lca(int x, int y)
{
if (Deep[x] < Deep[y]) swap(x, y);
per(i, 19, 0) if (Deep[Fa[x][i]] >= Deep[y]) x = Fa[x][i];
if (x == y) return x;
per(i, 19, 0)
if (Fa[x][i] != Fa[y][i]) x = Fa[x][i], y = Fa[y][i];
return Fa[x][0];
}
void Build()
{
sort(X + 1, X + m + 1, cmp);
int top = 0; stack[++top] = 1;
rep(i, 1, m)
{
if (X[i] == 1) continue;
int u = lca(X[i], stack[top]);
while (top && Deep[stack[top]] > Deep[u])
{
addedge(Deep[stack[top - 1]] < Deep[u] ? u : stack[top - 1], stack[top]);
top--;
}
if (!top || stack[top] != u) stack[++top] = u;
stack[++top] = X[i];
}
while (--top) addedge(stack[top], stack[top + 1]);
}
void up_dfs(int u)
{
Z[++num] = u; Rest[u] = Size[u];
travel(i, u)
{
int v = edge[i].vet;
up_dfs(v);
if (!Belong[v]) continue;
int dis1 = Deep[Belong[v]] - Deep[u], dis2 = Belong[u] ? Deep[Belong[u]] - Deep[u] : INF;
if (dis1 < dis2 || dis1 == dis2 && Belong[v] < Belong[u]) Belong[u] = Belong[v];
}
Dis[u] = Deep[Belong[u]] - Deep[u];
}
void down_dfs(int u)
{
travel(i, u)
{
int v = edge[i].vet;
int dis1 = Dis[u] + Deep[v] - Deep[u], dis2 = Dis[v];
if (dis1 < dis2 || dis1 == dis2 && Belong[u] < Belong[v]) Belong[v] = Belong[u], Dis[v] = dis1;
down_dfs(v);
}
}
void Solve(int u, int v)
{
int mid = v;
if (Belong[u] == Belong[v])
{
Rest[u] -= Size[v];
return;
}
per(i, 19, 0)
{
int x = Fa[mid][i];
if (Deep[x] <= Deep[u]) continue;
int dis1 = Dis[u] + Deep[x] - Deep[u], dis2 = Dis[v] + Deep[v] - Deep[x];
if (dis1 > dis2 || dis1 == dis2 && Belong[u] > Belong[v]) mid = x;
}
Rest[u] -= Size[mid];
Ans[Belong[v]] += Size[mid] - Size[v];
}
int sqz()
{
n = read();
rep(i, 1, n) head[i] = -1;
Rep(i, 1, n)
{
int u = read(), v = read();
addedge(u, v), addedge(v, u);
}
dfs(1, 0); edgenum = 0;
rep(i, 1, n) head[i] = -1;
int q = read();
while (q--)
{
m = read(); num = idx = 0;
rep(i, 1, m) X[i] = Y[i] = read(), Belong[X[i]] = X[i];
Build(); up_dfs(1); down_dfs(1);
rep(i, 1, num)
travel(j, Z[i]) Solve(Z[i], edge[j].vet);
rep(i, 1, num) Ans[Belong[Z[i]]] += Rest[Z[i]];
rep(i, 1, m) printf("%d%c", Ans[Y[i]], i == m ? '\n' : ' ');
rep(i, 1, num) head[Z[i]] = -1, Belong[Z[i]] = Ans[Z[i]] = Rest[Z[i]] = 0;
}
}
|
