func_code_string: #include <bits/stdc++.h>   using namespace std;   const long long inf = 1e15;   const int N = 2e5 + 10;   int I[N], st[N], fn[N], par[N], h[N], sz[N], big[N], hd[N], n, m, q, timer;   long long w[N];   vector<int> g[N], V[N];   struct Node {     pair<long long, long long> Mn;     long long Lazy = 0;   } seg[N << 2];   void apply(int id, long long val) {     seg[id].Mn.first += val;     seg[id].Lazy += val;   }   void shift(int id) {     if (seg[id].Lazy == 0) return;     apply(id << 1, seg[id].Lazy);     apply(id << 1 | 1, seg[id].Lazy);     seg[id].Lazy = 0;   }   void add(int l, int r, long long val, int L = 0, int R = n + m, int id = 1) {     if (r <= L || R <= l) return;     if (l <= L && R <= r) {       apply(id, val);       return;     }     shift(id);     add(l, r, val, L, (L + R) >> 1, id << 1);     add(l, r, val, (L + R) >> 1, R, id << 1 | 1);     seg[id].Mn = min(seg[id << 1].Mn, seg[id << 1 | 1].Mn);   }   pair<long long, long long> get(int l, int r, int L = 0, int R = n + m,                                  int id = 1) {     if (r <= L || R <= l) return {inf, inf};     if (l <= L && R <= r) return seg[id].Mn;     shift(id);     return min(get(l, r, L, (L + R) >> 1, id << 1),                get(l, r, (L + R) >> 1, R, id << 1 | 1));   }   void Build(int L = 0, int R = n + m, int id = 1) {     if (R - L == 1) {       seg[id].Mn = {w[I[L]], I[L]};       return;     }     Build(L, (L + R) >> 1, id << 1);     Build((L + R) >> 1, R, id << 1 | 1);     seg[id].Mn = min(seg[id << 1].Mn, seg[id << 1 | 1].Mn);     return;   }   int dfs_size(int v) {     for (int u : g[v])       if (u != par[v]) {         par[u] = v, h[u] = h[v] + 1;         sz[v] += dfs_size(u);         if (sz[u] > sz[big[v]]) big[v] = u;       }     return ++sz[v];   }   void dfs_hld(int v) {     for (int i : V[v]) I[timer] = i, st[i] = timer++;     if (big[v]) hd[big[v]] = hd[v], dfs_hld(big[v]);     for (int u : g[v])       if (u != par[v] & u != big[v]) hd[u] = u, dfs_hld(u);     for (int i : V[v]) fn[i] = timer;   }   pair<long long, long long> getmin(int u, int v) {     pair<long long, long long> res = {inf, inf};     while (hd[u] != hd[v]) {       if (h[hd[v]] > h[hd[u]]) swap(u, v);       res = min(res, get(st[hd[u]], st[u] + (int)V[u].size()));       u = par[hd[u]];     }     if (h[v] < h[u]) swap(u, v);     res = min(res, get(st[u], st[v] + (int)V[v].size()));     return res;   }   void query(int u, int v, int k) {     vector<int> ans;     while (k--) {       pair<long long, long long> p = getmin(u, v);       if (p.first >= inf) break;       ans.push_back(p.second);       add(st[p.second], st[p.second] + 1, inf);     }     cout << ans.size() <<    ;     for (int i : ans) cout << i - n <<    ;     cout <<   n ;   }   int main() {     ios::sync_with_stdio(0), cin.tie(0), cout.tie(0);     cin >> n >> m >> q;     for (int i = 0; i < n - 1; i++) {       int u, v;       cin >> u >> v;       g[u].push_back(v);       g[v].push_back(u);     }     for (int i = 1; i <= n + m; i++) {       if (i <= n) {         V[i].push_back(i), w[i] = inf;         continue;       }       int c;       cin >> c;       V[c].push_back(i), w[i] = i - n;     }     dfs_size(1), hd[1] = 1, dfs_hld(1), Build();     while (q--) {       int t;       cin >> t;       if (t == 1) {         int u, v, k;         cin >> u >> v >> k;         query(u, v, k);       }       if (t == 2) {         int v, k;         cin >> v >> k;         add(st[v], fn[v], k);       }     }     return 0;   }   