結果

問題 No.1802 Range Score Query for Bracket Sequence
ユーザー sten_san
提出日時 2022-01-07 23:15:06
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 328 ms / 2,000 ms
コード長 3,190 bytes
コンパイル時間 2,302 ms
コンパイル使用メモリ 196,040 KB
最終ジャッジ日時 2025-01-27 09:47:42
ジャッジサーバーID
（参考情報） 		judge5 / judge1
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ファイルパターン 結果
sample AC * 1
other AC * 24
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

#include <bits/stdc++.h>
using namespace std;
struct iofast_t {
    iofast_t() {
        ios::sync_with_stdio(false);
        cin.tie(nullptr);
    }
} iofast;
struct uns_t {} uns;
template <typename Element, typename Head, typename ...Args>
auto vec(Element init, Head arg, Args ...args) {
    if constexpr (sizeof...(Args) == 0) return vector(arg, init);
    else return vector(arg, vec(init, args...));
}
template <typename Element, typename Head, typename ...Args>
auto vec(uns_t, Head arg, Args ...args) {
    return vec(Element(), arg, args...);
}
template <typename Container>
auto distance(const Container &c, decltype(begin(c)) iter) {
    return distance(begin(c), iter);
}
template <typename RIter, typename Compare = less<typename iterator_traits<RIter>::value_type>>
auto isort(RIter first, RIter last, Compare comp = Compare()) {
    vector<int> i(distance(first, last));
    iota(begin(i), end(i), 0);
    sort(begin(i), end(i), [&](auto x, auto y) {
        return comp(*(first + x), *(first + y));
    });
    return i;
}
template <typename, template <typename> typename, typename = void_t<>>
struct detect : false_type {};
template <typename T, template <typename> typename Check>
struct detect<T, Check, void_t<Check<T>>> : true_type {};
template <typename T, template <typename> typename Check>
constexpr inline bool detect_v = detect<T, Check>::value;
template <typename T>
using has_member_sort = decltype(declval<T>().sort());
template <typename Container, typename Compare = less<typename Container::value_type>>
auto sorted(Container c, Compare comp = Compare()) {
    if constexpr (detect_v<Container, has_member_sort>) {
        c.sort(comp);
        return c;
    }
    else {
        sort(begin(c), end(c), comp);
        return c;
    }
}
template <typename Container, typename Compare = equal_to<typename Container::value_type>>
auto uniqued(Container c, Compare comp = Compare()) {
    c.erase(unique(begin(c), end(c), comp), end(c));
    return c;
}
template <typename T, typename Compare = less<T>>
T &chmin(T &l, T r, Compare &&f = less<T>()) { return l = min(l, r, f); }
template <typename T, typename Compare = less<T>>
T &chmax(T &l, T r, Compare &&f = less<T>()) { return l = max(l, r, f); }
#include <atcoder/fenwicktree>
int main() {
    int n, q; cin >> n >> q;
    string s; cin >> s;
    atcoder::fenwick_tree<int> f(n - 1);
    for (int i = 0; i < n - 1; ++i) {
        if (s[i] == '(' && s[i + 1] == ')') {
            f.add(i, 1);
        }
    }
    s = '$' + s + '$';
    while (q--) {
        int t; cin >> t;
        if (t == 1) {
            int i; cin >> i;
            if (s[i - 1] == '(' && s[i] == ')') {
                f.add(i - 2, -1);
            }
            if (s[i] == '(' && s[i + 1] == ')') {
                f.add(i - 1, -1);
            }
            s[i] = (s[i] == '(' ? ')' : '(');
            if (s[i - 1] == '(' && s[i] == ')') {
                f.add(i - 2, 1);
            }
            if (s[i] == '(' && s[i + 1] == ')') {
                f.add(i - 1, 1);
            }
            continue;
        }
        int l, r; cin >> l >> r; --l; --r;
        cout << f.sum(l, r) << endl;
    }
}
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