func_code_string: #include <bits/stdc++.h>   using namespace std;   using ll = long long;   using ii = pair<int, int>;   using vi = vector<int>;   const int N = 2 * 5e5 + 5;   int n, m, q;   int par[N], sub[N];   int p[N];   struct edge {     int l, r, tag = 0;   } elist[N];   vi g[N];   int dp[19][500005];   const int lg = 19;   int position[N];   int in[N], out[N], tym = 0;   int what[N];   void setPar(int u, int dad) {     dp[0][u] = dad;     for (int i = 1; i < lg; ++i) {       dp[i][u] = dp[i - 1][dp[i - 1][u]];     }   }   void dfs(int u) {     if (u <= n) {       in[u] = out[u] = ++tym;       what[tym] = u;       position[p[u]] = tym;     } else {       in[u] = INT_MAX;       out[u] = INT_MIN;       for (int v : g[u]) {         setPar(v, u);         dfs(v);         in[u] = min(in[u], in[v]);         out[u] = max(out[u], out[v]);       }     }   }   int getHighest(int u, int tag) {     for (int i = lg - 1; i >= 0; --i) {       if (dp[i][u]) {         if (elist[dp[i][u] - n].tag >= tag) {           u = dp[i][u];         }       }     }     return u;   }   int find(int u) { return par[u] == u ? u : par[u] = find(par[u]); }   int mx[N];   void build(int u = 1, int b = 1, int e = n) {     if (b == e) {       return void(mx[u] = p[what[b]]);     }     int mid = (b + e) >> 1;     build(u << 1, b, mid);     build(u << 1 | 1, mid + 1, e);     mx[u] = max(mx[u << 1], mx[u << 1 | 1]);   }   int Max(int l, int r, int u = 1, int b = 1, int e = n) {     if (l <= b and e <= r) return mx[u];     if (b > r or e < l) return INT_MIN;     int mid = (b + e) >> 1;     return max(Max(l, r, u << 1, b, mid), Max(l, r, u << 1 | 1, mid + 1, e));   }   void makeZero(int pos, int u = 1, int b = 1, int e = n) {     if (b == e) {       return void(mx[u] = 0);     }     int mid = (b + e) >> 1;     if (pos <= mid) {       makeZero(pos, u << 1, b, mid);     } else {       makeZero(pos, u << 1 | 1, mid + 1, e);     }     mx[u] = max(mx[u << 1], mx[u << 1 | 1]);   }   int main(int argc, char const *argv[]) {     scanf( %d %d %d , &n, &m, &q);     for (int i = 1; i <= n; ++i) {       scanf( %d , &p[i]);     }     for (int i = 1; i < N; ++i) {       par[i] = i, sub[i] = 1;     }     for (int i = 1; i <= m; ++i) {       scanf( %d %d , &elist[i].l, &elist[i].r);     }     vector<ii> updates;     for (int i = 1; i <= q; ++i) {       int x, y;       scanf( %d %d , &x, &y);       updates.emplace_back(x, y);       if (x == 2) {         elist[y].tag = i;       }     }     for (int i = 1; i <= m; ++i) {       if (!elist[i].tag) {         elist[i].tag = q + i;       }     }     vi perm(m);     iota(begin(perm), end(perm), 1);     sort(begin(perm), end(perm),          [](int x, int y) { return elist[x].tag > elist[y].tag; });     for (int i : perm) {       int nu = n + i;       int x = find(elist[i].l);       int y = find(elist[i].r);       if (x != y) {         par[x] = par[y] = nu;         g[nu].emplace_back(x);         g[nu].emplace_back(y);       }     }     for (int i = 2; i <= 4; ++i) {     }     set<int> roots;     for (int i = 1; i <= n; ++i) {       roots.insert(find(i));     }     for (int x : roots) {       setPar(x, 0);       dfs(x);     }     build();     vi ans;     for (int i = 0; i < (int)(updates).size(); ++i) {       int tag = i + 1;       auto [op, u] = updates[i];       if (op == 1) {         int anc = getHighest(u, tag);         int mxVal = Max(in[anc], out[anc]);         ans.emplace_back(mxVal);         if (mxVal) makeZero(position[mxVal]);       } else {       }     }     for (int x : ans) {       printf( %d n , x);     }     return 0;   }   