結果
問題 | No.1802 Range Score Query for Bracket Sequence |
ユーザー |
|
提出日時 | 2022-01-08 16:01:57 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 85 ms / 2,000 ms |
コード長 | 4,661 bytes |
コンパイル時間 | 2,148 ms |
コンパイル使用メモリ | 197,284 KB |
最終ジャッジ日時 | 2025-01-27 09:59:40 |
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 1 |
other | AC * 24 |
ソースコード
// clang-format off#include <bits/stdc++.h>using namespace std;using ll = long long;using ld = long double;template<class T> using V = vector<T>;using VI = V<int>;using VL = V<ll>;using VS = V<string>;template<class T> using PQ = priority_queue<T, V<T>, greater<T>>;using graph = V<VI>;template<class T> using w_graph = V<V<pair<int, T>>>;#define FOR(i,a,n) for(int i=(a);i<(n);++i)#define eFOR(i,a,n) for(int i=(a);i<=(n);++i)#define rFOR(i,a,n) for(int i=(n)-1;i>=(a);--i)#define erFOR(i,a,n) for(int i=(n);i>=(a);--i)#define all(a) a.begin(),a.end()#define rall(a) a.rbegin(),a.rend()#define inside(h,w,y,x) (unsigned(y)<h&&unsigned(x)<w)#ifndef ONLINE_JUDGE#define line cout << "-----------------------------\n"#define stop system("pause")#endifconstexpr ll INF = 1000000000;constexpr ll LLINF = 1LL << 61;constexpr ll mod = 1000000007;constexpr ll MOD = 998244353;constexpr ld eps = 1e-10;constexpr int dy[]{ -1,0,1,0 }, dx[]{ 0,1,0,-1 };template<class T> inline bool chmax(T& a, const T& b) { if (a < b) { a = b; return true; }return false; }template<class T> inline bool chmin(T& a, const T& b) { if (a > b) { a = b; return true; }return false; }inline void init() { cin.tie(nullptr); cout.tie(nullptr); ios::sync_with_stdio(false); cout << fixed << setprecision(15); }template<class T> inline istream& operator>>(istream& is, V<T>& v) { for (auto& a : v)is >> a; return is; }template<class T, class U> inline istream& operator>>(istream& is, pair<T, U>& p) { is >> p.first >> p.second; return is; }template<class T> inline V<T> vec(size_t a) { return V<T>(a); }template<class T> inline V<T> defvec(T def, size_t a) { return V<T>(a, def); }template<class T, class... Ts> inline auto vec(size_t a, Ts... ts) { return V<decltype(vec<T>(ts...))>(a, vec<T>(ts...)); }template<class T, class... Ts> inline auto defvec(T def, size_t a, Ts... ts) { return V<decltype(defvec<T>(def, ts...))>(a, defvec<T>(def, ts...)); }template<class T> inline void print(const T& a) { cout << a << "\n"; }template<class T, class... Ts> inline void print(const T& a, const Ts&... ts) { cout << a << " "; print(ts...); }template<class T> inline void print(const V<T>& v) { for (int i = 0; i < v.size(); ++i)cout << v[i] << (i == v.size() - 1 ? "\n" : " "); }template<class T> inline void print(const V<V<T>>& v) { for (auto& a : v)print(a); }template<class T> inline constexpr const T cumsum(const V<T>& a, int l, int r) { return 0 <= l && l <= r && r < a.size() ? a[r] - (l == 0 ? 0 : a[l -1]) : 0; }//[l,r]template<class T> inline constexpr const T min(const V<T>& v) { return *min_element(all(v)); }template<class T> inline constexpr const T max(const V<T>& v) { return *max_element(all(v)); }// clang-format ontemplate <class T> class BinaryIndexedTree {int n;vector<T> dat;public:BinaryIndexedTree(int n) : n(n), dat(n + 1){};BinaryIndexedTree(int n, T a) : n(n), dat(n + 1) {eFOR(i, 1, n) {dat[i] += a;if (i + (i & -i) <= n) dat[i + (i & -i)] += dat[i];}}BinaryIndexedTree(VI v) : n(v.size()), dat(n + 1) {eFOR(i, 1, n) {dat[i] += v[i - 1];if (i + (i & -i) <= n) dat[i + (i & -i)] += dat[i];}}void add(int i, T a) {for (++i; i <= n; i += i & -i) dat[i] += a;}T sum(int r) { // sum of [0,r)T res = 0;for (; r; r -= r & -r) res += dat[r];return res;}T sum(int l, int r) { // sum of [l,r)if (l < 0 || n < r || l > r) return 0;return sum(r) - sum(l);}int lower_bound(T a) {int res = 0, k = 1;for (; k * 2 <= n; k *= 2);for (; k; k /= 2) {if (res + k <= n && a > dat[res + k]) {a -= dat[res + k];res += k;}}return res;}};int main() {init();int n, q;cin >> n >> q;string s;cin >> s;BinaryIndexedTree<int> bit(n);FOR(i, 0, n - 1) if (s.substr(i, 2) == "()") bit.add(i, 1);while (q--) {int t;cin >> t;if (t == 1) {int i;cin >> i;--i;if (0 < i && s.substr(i - 1, 2) == "()") bit.add(i - 1, -1);if (s.substr(i, 2) == "()") bit.add(i, -1);s[i] ^= '(' ^ ')';if (0 < i && s.substr(i - 1, 2) == "()") bit.add(i - 1, 1);if (s.substr(i, 2) == "()") bit.add(i, 1);}else {int l, r;cin >> l >> r;--l, --r;print(bit.sum(l, r));}}return 0;}