func_code_string: #include <bits/stdc++.h>   using namespace std;   const int MAXN = 3e5 + 10;   vector<pair<string, int> > ch[MAXN];   int nxt[MAXN][27], n, gp, ans;   string t;   void adds(string &tmp) {     for (int i = 0; i < tmp.size(); i++) {       gp = nxt[gp][tmp[i] -  a ];       if (gp == t.size()) ans++;     }   }   void dfs(int v, int p) {     for (int i = 0; i < ch[v].size(); i++) {       gp = p;       adds(ch[v][i].first);       dfs(ch[v][i].second, gp);     }   }   int main() {     cin >> n;     for (int i = 2; i <= n; i++) {       string tmp;       int r;       cin >> r >> tmp;       ch[r].push_back({tmp, i});     }     cin >> t;     nxt[0][t[0] -  a ] = 1;     int cp = 0;     for (int i = 1; i <= t.size(); i++) {       for (char c =  a ; c <=  z ; c++) {         if (t[cp] == c)           nxt[i][c -  a ] = cp + 1;         else           nxt[i][c -  a ] = nxt[cp][c -  a ];       }       if (i < t.size()) {         nxt[i][t[i] -  a ] = i + 1;         if (t[cp] == t[i])           cp++;         else           cp = nxt[cp][t[i] -  a ];       }     }     dfs(1, 0);     cout << ans;   }   