#include namespace { #pragma GCC diagnostic push #pragma GCC diagnostic ignored "-Wunused-function" #include #pragma GCC diagnostic pop using namespace std; using namespace atcoder; #define rep(i,n) for(int i = 0; i < (int)(n); i++) #define rrep(i,n) for(int i = (int)(n) - 1; i >= 0; i--) #define all(x) begin(x), end(x) #define rall(x) rbegin(x), rend(x) template bool chmax(T& a, const T& b) { if (a < b) { a = b; return true; } else return false; } template bool chmin(T& a, const T& b) { if (b < a) { a = b; return true; } else return false; } using ll = long long; using P = pair; using VI = vector; using VVI = vector; using VL = vector; using VVL = vector; } int main() { ios::sync_with_stdio(false); cin.tie(0); int n; cin >> n; vector s(n); VI len(n); rep(i, n) cin >> s[i], len[i] = s[i].size(); int q; cin >> q; vector

qs(q); rep(i, q) { int t; cin >> t; if (t == 1) { int x; char c; cin >> x >> c; x--; s[x] += c; qs[i] = {t, x}; } else { int x; cin >> x; x--; qs[i] = {t, x}; } } vector s_tot; int sep = 26; VI spos(n); rep(i, n) { spos[i] = s_tot.size(); for(char c: s[i]) s_tot.emplace_back(c - 'a'); s_tot.emplace_back(sep++); } VI sa = suffix_array(s_tot); auto lcp = lcp_array(s_tot, sa); lcp.insert(lcp.begin(), 1, -1); lcp.emplace_back(-1); int sz = sa.size(); VI sa_inv(sz); rep(i, sz) sa_inv[sa[i]] = i; vector is_front(sz); for(int i: spos) is_front[sa_inv[i]] = true; VI occ_acc(sz + 1); rep(i, sz) occ_acc[i + 1] = occ_acc[i] + is_front[i]; vector> to1(sz + 1), to2(sz + 1); { vector

st; st.emplace_back(0, 0); rep(i, sz) { int cnt = is_front[i]; while (lcp[st.back().first] > lcp[i + 1]) { cnt += st.back().second; st.pop_back(); } to1[i + 1] = {st.back().first, cnt}; st.emplace_back(i + 1, cnt); } } { vector

st; st.emplace_back(sz, 0); to2[0] = {sz, 0}; rrep(i, sz) { int cnt = is_front[i]; while (lcp[st.back().first] > lcp[i]) { cnt += st.back().second; st.pop_back(); } to2[i] = {st.back().first, cnt}; st.emplace_back(i, cnt); } } VL acc_f(sz + 1), acc_b(sz + 1); for (int i = 1; i <= sz; i++) { auto [j, c] = to1[i]; acc_f[i] = acc_f[j] + (ll)c * lcp[i]; } for (int i = sz - 1; i >= 0; i--) { auto [j, c] = to2[i]; acc_b[i] = acc_b[j] + (ll)c * lcp[i]; } vector> to1k(19, vector(sz + 1)), to2k = to1k; rep(i, sz + 1) to1k[0][i] = to1[i].first; rep(i, sz + 1) to2k[0][i] = to2[i].first; rep(k, 18) rep(i, sz + 1) { to1k[k+1][i] = to1k[k][to1k[k][i]]; to2k[k+1][i] = to2k[k][to2k[k][i]]; } for(auto [t, x]: qs) { if (t == 1) { len[x]++; } else { int l = len[x]; ll ans = l; int i = sa_inv[spos[x]]; int j = i; rrep(k, 19) { int nj = to1k[k][j]; if (lcp[nj] >= l) j = nj; } j = to1k[0][j]; ans += (ll)l * (occ_acc[i] - occ_acc[j]); ans += acc_f[j]; i++; j = i; rrep(k, 19) { int nj = to2k[k][j]; if (lcp[nj] >= l) j = nj; } j = to2k[0][j]; ans += (ll)l * (occ_acc[j] - occ_acc[i]); ans += acc_b[j]; cout << ans-1 << '\n'; } } }