#ifndef EVAL #include "/home/bgopc/template/pch.hpp" #endif #include <bits/stdc++.h> using namespace std; // * No One Dies a Virgin, Life Fucks Us All typedef long long ll; #define nl '\n' #define ff first #define ss second #define pb push_back #define sik(x) {cout << x << nl; return;} constexpr ll maxn = 2e5+10, mod = 1e9 + 7, inf = 1e17, SQ = 450, LG = 20; typedef pair<int, int> pii; int n, m, q, in[maxn], out[maxn], T = 1, big[maxn], sz[maxn], hd[maxn], h[maxn], par[maxn], ans[maxn], lst[maxn]; vector<int> g[maxn]; set<pii> have[maxn]; pii E[maxn]; void PreDfs(int v) { big[v] = -1; sz[v] = 1; for (int &u : g[v]) { g[u].erase(find(g[u].begin(), g[u].end(), v)); par[u] = v; h[u] = h[v] + 1; PreDfs(u); sz[v] += sz[u]; if (big[v] == -1 || sz[u] > sz[big[v]]) { big[v] = u; swap(g[v][0], u); } } } void dfs(int v) { in[v] = T ++; for (int u : g[v]) { hd[u] = u == big[v] ? hd[v] : u; dfs(u); } out[v] = T; } inline bool upd(int e) { auto [u, v] = E[e]; u = hd[u]; auto [it, f] = have[u].insert(pii(in[v], v)); if (!f) have[u].erase(it); return !f; } inline int root(int v) { int u = v; while (1) { auto &st = have[hd[v]]; if (!st.empty()) { auto it = st.upper_bound(pii(in[u], u)); if (it != st.begin()) return (-- it)->ss; } if (hd[v] == 1) return 1; v = par[hd[v]]; } } int32_t main() { cin.tie(0)->sync_with_stdio(0); cin >> n >> m >> q; for (int i = 1 , u ,v ; i <= n - 1 ; i ++) { cin >> u >> v; g[u].pb(v); g[v].pb(u); E[i] = {u, v}; } PreDfs(1); hd[1] = 1; dfs(1); for (int i = 1 ; i <= n ; i ++) ans[i] = 1; for (int i = 1 ; i <= n - 1 ; i ++) { if (h[E[i].ff] > h[E[i].ss]) swap(E[i].ff, E[i].ss); upd(i); } for (int e ; m -- ; ) { cin >> e; auto [u, v] = E[e]; int r = root(u); if (upd(e)) ans[r] += ans[v] - lst[v]; else ans[v] = lst[v] = ans[r]; } for (int v ; q -- ; ) { cin >> v; cout << ans[root(v)] << nl; } return 0; }