func_code_string: #include <bits/stdc++.h>   using namespace std;   const int N = 3e5 + 6;   namespace AC {   int tot, tr[N][26];   int fail[N];   int cnt[N];   int sid[N];   int next[N];   bool vis[N];   int isend[N];   int in[N];   int val[N];   int victim[N];   queue<int> q;   void init() {     memset(fail, 0, sizeof(fail));     memset(tr, 0, sizeof(tr));     memset(cnt, 0, sizeof(cnt));     memset(vis, false, sizeof vis);     memset(sid, 0, sizeof sid);     memset(val, 0, sizeof val);     memset(isend, 0, sizeof isend);     memset(victim, 0, sizeof victim);     memset(next, 0, sizeof next);     tot = 0;   }   void insert(char *s, int id) {     int u = 0;     for (int i = 1; s[i]; i++) {       if (!tr[u][s[i] -  a ]) tr[u][s[i] -  a ] = ++tot;       u = tr[u][s[i] -  a ];     }     sid[id] = u;     isend[u] = true;   }   void build() {     next[0] = 0;     for (int i = 0; i < 26; i++)       if (tr[0][i]) q.push(tr[0][i]);     while (q.size()) {       int u = q.front();       q.pop();       for (int i = 0; i < 26; i++) {         if (tr[u][i]) {           fail[tr[u][i]] = tr[fail[u]][i], q.push(tr[u][i]);           in[fail[tr[u][i]]] += 1;         } else           tr[u][i] = tr[fail[u]][i];         next[tr[u][i]] =             isend[fail[tr[u][i]]] ? fail[tr[u][i]] : next[fail[tr[u][i]]];       }     }   }   int query(char *t) {     int u = 0, res = -1;     for (int i = 1; t[i]; i++) {       u = tr[u][t[i] -  a ];       for (int x = u; x; x = next[x]) {         if (isend[x]) {           res = max(res, victim[x]);         }       }     }     return res;   }   void query(char *t, int) {     int u = 0;     for (int i = 1; t[i]; i++) {       u = tr[u][t[i] -  a ];       val[u] += 1;     }   }   void topoSort() {     for (int i = 0; i < N; ++i)       if (in[i] == 0) q.push(i);     while (!q.empty()) {       int u = q.front();       q.pop();       int v = fail[u];       in[v]--;       val[v] += val[u];       if (in[v] == 0) q.push(v);     }   }   }  // namespace AC   char s[N];   int val[N];   map<int, int> mp[N];   int main() {     int ans = 0;     int n, m;     cin >> n >> m;     AC::init();     for (int i = 0; i < n; i++) {       scanf( %s , s + 1);       AC::insert(s, i);       mp[AC::sid[i]][0] += 1;     }     AC::build();     while (m--) {       int x, c, v;       scanf( %d , &x);       if (x == 1) {         scanf( %d %d , &c, &v);         mp[AC::sid[c - 1]][val[c - 1]] -= 1;         if (mp[AC::sid[c - 1]][val[c - 1]] == 0) {           mp[AC::sid[c - 1]].erase(val[c - 1]);         }         val[c - 1] = v;         mp[AC::sid[c - 1]][v] += 1;         AC::victim[AC::sid[c - 1]] = (*--mp[AC::sid[c - 1]].end()).first;         continue;       }       scanf( %s , s + 1);       cout << AC::query(s) << endl;     }     return 0;   }   