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- #include<bits/stdc++.h>
- #define endl "\n"
- using namespace std;
- using ll = long long;
- using ld = long double;
- using pii = pair<int, int>;
- constexpr int N = 1e6 + 5;
- constexpr ll mod = 1e9 + 9;
- int n, l, r, type, v;
- string init;
- ll deg[N];
- ll mul(ll l, ll r){
- return (l * r) % mod;
- }
- ll sum(ll l, ll r){
- return (l + r) % mod;
- }
- struct Treap{
- struct Node{
- bool isrev;
- char val;
- int sz;
- int pri;
- Node *l, *r;
- ll hash;
- ll revhash;
- Node(char a = '0', Node *le = nullptr, Node *ri = nullptr) :
- val(a), pri((rand() << 16) + rand()), sz(1),
- hash(a - 'a' + 1), revhash(a - 'a' + 1),
- l(le), r(ri) {};
- };
- using pN = Node*;
- using pNN = pair<pN, pN>;
- Node buff[N];
- pN root = nullptr;
- int st = 0;
- pN newN(char val){
- buff[st] = Node(val);
- return &buff[st++];
- }
- int getsz(pN v){
- return v == nullptr ? 0 : v -> sz;
- }
- ll gethash(pN v){
- return v == nullptr ? 0 : v -> hash;
- }
- ll getrevhash(pN v){
- return v == nullptr ? 0 : v -> hash;
- }
- void recalc(pN v){
- v -> sz = getsz(v -> l) + getsz(v -> r) + 1;
- v -> hash = sum(sum(gethash(v -> l), mul(gethash(v -> r),
- deg[getsz(v -> l) + 1])), mul((v -> val - 'a' + 1ll), deg[getsz(v -> l)]));
- v -> revhash = sum(sum(getrevhash(v -> r), mul(getrevhash(v -> l),
- deg[getsz(v -> r) + 1])), mul((v -> val - 'a' + 1ll), deg[getsz(v -> r)]));
- return;
- }
- pNN split(pN v, int k){
- if (k == 0)
- return {nullptr, v};
- push(v);
- if (getsz(v -> l) >= k){
- auto p = split(v -> l, k);
- v -> l = p.second;
- recalc(v);
- return {p.first, v};
- }
- else {
- auto p = split(v -> r, k - getsz(v -> l) - 1);
- v -> r = p.first;
- recalc(v);
- return {v, p.second};
- }
- }
- pN merge(pN l, pN r){
- if (l == nullptr)
- return r;
- if (r == nullptr)
- return l;
- if (l -> pri < r -> pri){
- push(l);
- l -> r = merge(l -> r, r);
- recalc(l);
- return l;
- }
- else {
- push(r);
- r -> l = merge(l, r -> l);
- recalc(r);
- return r;
- }
- }
- void insert(int k, char val){
- auto p1 = split(root, k);
- auto v = newN(val);
- root = merge(merge(p1.first, v), p1.second);
- return;
- }
- void reverse(pN v){
- if (v == nullptr)
- return;
- v -> isrev ^= 1;
- swap(v -> hash, v -> revhash);
- swap(v -> l, v -> r);
- }
- void push(pN v){
- if (v == nullptr)
- return;
- if (v -> isrev){
- reverse(v -> l);
- reverse(v -> r);
- v -> isrev = 0;
- swap(v -> hash, v -> revhash);
- }
- return;
- }
- void rev(int l, int r){
- auto p1 = split(root, r);
- auto p2 = split(p1.first, l - 1);
- reverse(p2.second);
- root = merge(merge(p2.first, p2.second), p1.second);
- return;
- }
- void clear(){
- st = 0;
- root = nullptr;
- }
- } tr1, tr2; // tr2 is copy of tr1 (only difference is priority)
- bool check(int len, int l, int r){
- auto p1 = tr1.split(tr1.root, l - 1);
- auto p2 = tr2.split(tr2.root, r - 1);
- auto p3 = tr1.split(p1.second, len);
- auto p4 = tr2.split(p2.second, len);
- bool ans = (tr1.gethash(p3.first) == tr2.gethash(p4.first));
- tr1.root = tr1.merge(p1.first, tr1.merge(p3.first, p3.second));
- tr2.root = tr2.merge(p2.first, tr2.merge(p4.first, p4.second));
- return ans;
- }
- int findk(int ql, int qr){
- int l = 0, r = tr1.getsz(tr1.root) - qr + 1, mid, ans = 0;
- while (l <= r){
- mid = (l + r) >> 1;
- if (check(mid, ql, qr))
- ans = mid, l = mid + 1;
- else r = mid - 1;
- }
- return ans;
- }
- void Solve(){
- deg[0] = 1ll;
- for (int i = 1; i < N; i++)
- deg[i] = mul(deg[i - 1], 31ll);
- cin >> init;
- for (int i = 0; i < init.size(); i++){
- tr1.insert(i, init[i]);
- tr2.insert(i, init[i]);
- }
- cin >> n;
- while (n--){
- cin >> type >> l >> r;
- if (type == 1){
- tr1.rev(l, r);
- tr2.rev(l, r);
- }
- else
- cout << findk(l, r) << endl;
- }
- }
- int main(){
- ios::sync_with_stdio(false);
- cin.tie(nullptr);
- cout.tie(nullptr);
- Solve();
- return 0;
- }
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