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- #include <iostream>
- #include <vector>
- #include <string>
- #include <iomanip>
- #include <queue>
- #include <cmath>
- #include <algorithm>
- #include <tuple>
- #include <iomanip>
- #include <stdio.h>
- #include <numeric>
- #include <map>
- #include <bitset>
- #include <set>
- #include <stack>
- #include <queue>
- #include <unordered_set>
- //#pragma GCC optimize("Ofast,no-stack-protector")
- //#pragma GCC optimize("O3")
- //#pragma GCC target("avx2")
- //#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,tune=native")
- //#pragma GCC optimize("unroll-loops")
- //#pragma GCC optimize("fast-math")
- //#pragma GCC optimize("section-anchors")
- //#pragma GCC optimize("profile-values,profile-reorder-functions,tracer")
- //#pragma GCC optimize("vpt")
- //#pragma GCC optimize("rename-registers")
- //#pragma GCC optimize("move-loop-invariants")
- //#pragma GCC optimize("unswitch-loops")
- //#pragma GCC optimize("function-sections")
- //#pragma GCC optimize("data-sections")
- //#pragma GCC optimize("branch-target-load-optimize")
- //#pragma GCC optimize("branch-target-load-optimize2")
- //#pragma GCC optimize("btr-bb-exclusive")
- //#pragma GCC optimize("O0")
- #define int long long
- #define ll long long
- #define ull unsigned long long
- #define all(a) a.begin(), a.end()
- #define pii pair<int, int>
- #define pb push_back
- #define ld long double
- using namespace std;
- const int INF = 1e18;
- //const int mod = 2600000069;
- //const int p = 179;
- struct node {
- int l, r, lm, rm, ans;
- node(int l_, int lm_, int r_, int rm_, int ans_) {
- l = l_;
- lm = lm_;
- r = r_;
- rm = rm_;
- ans = ans_;
- }
- node() {
- l = 0;
- r = 0;
- rm = INF;
- lm = INF;
- ans = 0;
- }
- };
- node merge(node a, node b, int l, int m, int r) {
- node c;
- c.l = a.l;
- c.lm = a.lm;
- c.r = b.r;
- c.rm = b.rm;
- c.ans = max(a.ans, b.ans);
- if (a.r + a.rm == b.lm) {
- c.ans = max(a.r + b.l, c.ans);
- }
- if (a.l == m - l && a.l + a.lm == b.lm) {
- c.l = a.l + b.l;
- }
- if (b.r == r - m && a.rm + a.r == b.rm) {
- c.r = a.r + b.r;
- c.rm = a.rm;
- }
- c.ans = max(c.ans, max(c.l, c.r));
- return c;
- }
- int n;
- vector<node> t;
- vector<int> a, mod;
- void push(int v) {
- if (2 * v + 1 >= 4 * n) {
- t[v].lm += mod[v];
- t[v].rm += mod[v];
- mod[v] = 0;
- return;
- }
- t[v].lm += mod[v];
- t[v].rm += mod[v];
- mod[2 * v + 1] += mod[v];
- mod[2 * v + 2] += mod[v];
- mod[v] = 0;
- }
- void build(int v, int l, int r) {
- if (r - l == 1) {
- t[v] = node(1, a[l], 1, a[l], 1);
- return;
- }
- int m = (l + r) / 2;
- build(2 * v + 1, l, m);
- build(2 * v + 2, m, r);
- t[v] = merge(t[2 * v + 1], t[2 * v + 2], l, m, r);
- }
- void update(int v, int l, int r, int askl, int askr, int val) {
- if (l >= askr || r <= askl) {
- return;
- }
- push(v);
- if (l >= askl && r <= askr) {
- mod[v] = val;
- return;
- }
- int m = (l + r) / 2;
- update(2 * v + 1, l, m, askl, askr, val);
- update(2 * v + 2, m, r, askl, askr, val);
- t[v] = merge(t[2 * v + 1], t[2 * v + 2], l, m, r);
- }
- node get_ans(int v, int l, int r, int askl, int askr) {
- if (l >= askr || r <= askl) return node();
- push(v);
- if (l >= askl && r <= askr) {
- return t[v];
- }
- int m = (l + r) / 2;
- node ret = merge(get_ans(2 * v + 1, l, m, askl, askr), get_ans(2 * v + 2, m, r, askl, askr), l, m, r);
- t[v] = merge(t[2 * v + 1], t[2 * v + 2], l, m, r);
- return ret;
- }
- signed main() {
- ios_base::sync_with_stdio(0);
- cin.tie(0);
- cout.tie(0);
- int n;
- cin >> n;
- a.resize(n);
- t.resize(4 * n);
- mod.assign(4 * n, 0);
- for (auto& k : a) cin >> k;
- build(0, 0, n);
- int q;
- cin >> q;
- char t;
- int l, r, val;
- while (q--) {
- cin >> t >> l >> r;
- --l;
- if (t == '+') {
- cin >> val;
- update(0, 0, n, l, r, val);
- } else {
- cout << get_ans(0, 0, n, l, r).ans << "\n";
- }
- }
- }
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