結果
| 問題 | No.1802 Range Score Query for Bracket Sequence |
| ユーザー |
 fuppy_kyopro
|
| 提出日時 | 2022-01-07 21:42:54 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 410 ms / 2,000 ms |
| コード長 | 6,905 bytes |
| コンパイル時間 | 2,654 ms |
| コンパイル使用メモリ | 208,684 KB |
| 最終ジャッジ日時 | 2025-01-27 09:18:39 |
|
ジャッジサーバーID （参考情報） |
judge5 / judge3 |
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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
/*
#pragma GCC target("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
//*/
#include <bits/stdc++.h>
// #include <atcoder/all>
// #include <atcoder/maxflow>
using namespace std;
// using namespace atcoder;
#define DEBUG(x) cerr << #x << ": " << x << endl;
#define DEBUG_VEC(v) \
cerr << #v << ":"; \
for (int iiiiiiii = 0; iiiiiiii < v.size(); iiiiiiii++) \
cerr << " " << v[iiiiiiii]; \
cerr << endl;
#define DEBUG_MAT(v) \
cerr << #v << endl; \
for (int iv = 0; iv < v.size(); iv++) { \
for (int jv = 0; jv < v[iv].size(); jv++) { \
cerr << v[iv][jv] << " "; \
} \
cerr << endl; \
}
typedef long long ll;
// #define int ll
#define vi vector<int>
#define vl vector<ll>
#define vii vector<vector<int>>
#define vll vector<vector<ll>>
#define vs vector<string>
#define pii pair<int, int>
#define pis pair<int, string>
#define psi pair<string, int>
#define pll pair<ll, ll>
template <class S, class T>
pair<S, T> operator+(const pair<S, T> &s, const pair<S, T> &t) {
return pair<S, T>(s.first + t.first, s.second + t.second);
}
template <class S, class T>
pair<S, T> operator-(const pair<S, T> &s, const pair<S, T> &t) { return pair<S, T>(s.first - t.first, s.second - t.second); }
template <class S, class T>
ostream &operator<<(ostream &os, pair<S, T> p) {
os << "(" << p.first << ", " << p.second << ")";
return os;
}
#define X first
#define Y second
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define rep1(i, n) for (int i = 1; i <= (int)(n); i++)
#define rrep(i, n) for (int i = (int)(n)-1; i >= 0; i--)
#define rrep1(i, n) for (int i = (int)(n); i > 0; i--)
#define REP(i, a, b) for (int i = a; i < b; i++)
#define in(x, a, b) (a <= x && x < b)
#define all(c) c.begin(), c.end()
void YES(bool t = true) {
cout << (t ? "YES" : "NO") << endl;
}
void Yes(bool t = true) { cout << (t ? "Yes" : "No") << endl; }
void yes(bool t = true) { cout << (t ? "yes" : "no") << endl; }
void NO(bool t = true) { cout << (t ? "NO" : "YES") << endl; }
void No(bool t = true) { cout << (t ? "No" : "Yes") << endl; }
void no(bool t = true) { cout << (t ? "no" : "yes") << endl; }
template <class T>
bool chmax(T &a, const T &b) {
if (a < b) {
a = b;
return 1;
}
return 0;
}
template <class T>
bool chmin(T &a, const T &b) {
if (a > b) {
a = b;
return 1;
}
return 0;
}
#define UNIQUE(v) v.erase(std::unique(v.begin(), v.end()), v.end());
const ll inf = 1000000001;
const ll INF = (ll)1e18 + 1;
const long double pi = 3.1415926535897932384626433832795028841971L;
int popcount(ll t) { return __builtin_popcountll(t); }
// int dx[4] = {1, 0, -1, 0}, dy[4] = {0, 1, 0, -1};
// int dx2[8] = { 1,1,0,-1,-1,-1,0,1 }, dy2[8] = { 0,1,1,1,0,-1,-1,-1 };
vi dx = {0, 1, 0, -1}, dy = {-1, 0, 1, 0};
vi dx2 = {1, 1, 0, -1, -1, -1, 0, 1}, dy2 = {0, 1, 1, 1, 0, -1, -1, -1};
struct Setup_io {
Setup_io() {
ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0);
cout << fixed << setprecision(25);
}
} setup_io;
const ll MOD = 1000000007;
// const ll MOD = 998244353;
// #define mp make_pair
//#define endl '\n'
template <typename T>
class SegmentTree {
public:
using F = function<T(T &, T &)>;
int n;
vector<T> dat;
T e; // �P�ʌ�
F query_func;
F update_func;
SegmentTree(vector<T> a, F query_func, F update_func, T e) : n(a.size()), query_func(query_func), update_func(update_func), e(e) {
if (n == 0) {
a.push_back(e);
n++;
}
dat.resize(4 * n);
init(0, 0, n, a);
}
void init(int k, int l, int r, vector<T> &a) {
if (r - l == 1) {
dat[k] = a[l];
} else {
int lch = 2 * k + 1, rch = 2 * k + 2;
init(lch, l, (l + r) / 2, a);
init(rch, (l + r) / 2, r, a);
dat[k] = query_func(dat[lch], dat[rch]);
}
}
//k�Ԗڂ̒l��a�ɕύX
void update(int k, T a, int v, int l, int r) {
if (r - l == 1) {
dat[v] = update_func(dat[v], a);
} else {
if (k < (l + r) / 2)
update(k, a, 2 * v + 1, l, (l + r) / 2);
else {
update(k, a, 2 * v + 2, (l + r) / 2, r);
}
dat[v] = query_func(dat[v * 2 + 1], dat[v * 2 + 2]);
}
}
//[a,b)�̍ŏ��l�����߂�
//���̂ق��̈����͌v�Z�̊ȒP�̂��߂̈���
//k�͐ړ_�̔ԍ�,l,r�͂��̐ړ_��[l,r)�ɑΉ����Ă��邱�Ƃ�\��
//�]���āA�O�����query(a,b,0,0,n)�Ƃ��Ă��
T query(int a, int b, int k, int l, int r) {
if (r <= a || b <= l) {
return e;
}
if (a <= l && r <= b) {
return dat[k];
} else {
T ul = query(a, b, k * 2 + 1, l, (l + r) / 2);
T ur = query(a, b, k * 2 + 2, (l + r) / 2, r);
return query_func(ul, ur);
}
}
// ���������ĉE��T��
int find(int a, int b, int k, int l, int r, int x) {
// ������
if (dat[k] < x || r <= a || b <= l) return -1;
if (l + 1 == r) {
// ������
if (dat[k] >= x)
return l;
else
return -1;
}
int rv = find(a, b, 2 * k + 2, (l + r) / 2, r, x);
if (rv != -1) return rv;
return find(a, b, 2 * k + 1, l, (l + r) / 2, x);
}
};
int f(int a, int b) {
return a + b;
}
int g(int a, int b) {
return b;
}
signed main() {
int n, q;
cin >> n >> q;
string s;
cin >> s;
vi a(n - 1);
rep(i, n - 1) {
if (s[i] == '(' && s[i + 1] == ')') a[i] = 1;
}
SegmentTree<int> seg(a, f, g, 0);
while (q--) {
int t;
cin >> t;
if (t == 1) {
int i;
cin >> i;
i--;
if (s[i] == '(')
s[i] = ')';
else
s[i] = '(';
if (i != 0) {
int val = 0;
if (s[i - 1] == '(' && s[i] == ')') val = 1;
seg.update(i - 1, val, 0, 0, seg.n);
}
if (i != n - 1) {
int val = 0;
if (s[i] == '(' && s[i + 1] == ')') val = 1;
seg.update(i, val, 0, 0, seg.n);
}
} else {
int l, r;
cin >> l >> r;
l--;
cout << seg.query(l, r - 1, 0, 0, seg.n) << endl;
}
}
}