結果

問題 No.2338 Range AtCoder Query
ユーザー Forested
提出日時 2022-08-22 18:41:31
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 280 ms / 4,000 ms
コード長 7,201 bytes
コンパイル時間 1,553 ms
コンパイル使用メモリ 133,792 KB
最終ジャッジ日時 2025-01-31 02:50:23
ジャッジサーバーID
（参考情報） 		judge5 / judge1
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 1
other AC * 34
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ソースコード

diff # 

#ifndef LOCAL
#define FAST_IO
#endif

// ===== template.hpp =====
#include <algorithm>
#include <array>
#include <bitset>
#include <cassert>
#include <cmath>
#include <iomanip>
#include <iostream>
#include <list>
#include <map>
#include <numeric>
#include <queue>
#include <random>
#include <set>
#include <stack>
#include <string>
#include <tuple>
#include <unordered_map>
#include <unordered_set>
#include <utility>
#include <vector>

#define OVERRIDE(a, b, c, d, ...) d
#define REP2(i, n) for (i32 i = 0; i < (i32) (n); ++i)
#define REP3(i, m, n) for (i32 i = (i32) (m); i < (i32) (n); ++i)
#define REP(...) OVERRIDE(__VA_ARGS__, REP3, REP2)(__VA_ARGS__)
#define PER(i, n) for (i32 i = (i32) (n) - 1; i >= 0; --i)
#define ALL(x) begin(x), end(x)

using namespace std;

using u32 = unsigned int;
using u64 = unsigned long long;
using u128 = __uint128_t;
using i32 = signed int;
using i64 = signed long long;
using i128 = __int128_t;
using f64 = double;
using f80 = long double;

template <typename T>
using Vec = vector<T>;

template <typename T>
bool chmin(T &x, const T &y) {
    if (x > y) {
        x = y;
        return true;
    }
    return false;
}
template <typename T>
bool chmax(T &x, const T &y) {
    if (x < y) {
        x = y;
        return true;
    }
    return false;
}

istream &operator>>(istream &is, i128 &x) {
    i64 v;
    is >> v;
    x = v;
    return is;
}
ostream &operator<<(ostream &os, i128 x) {
    os << (i64) x;
    return os;
}
istream &operator>>(istream &is, u128 &x) {
    u64 v;
    is >> v;
    x = v;
    return is;
}
ostream &operator<<(ostream &os, u128 x) {
    os << (u64) x;
    return os;
}

[[maybe_unused]] constexpr i32 INF = 1000000100;
[[maybe_unused]] constexpr i64 INF64 = 3000000000000000100;
struct SetUpIO {
    SetUpIO() {
#ifdef FAST_IO
        ios::sync_with_stdio(false);
        cin.tie(nullptr);
#endif
        cout << fixed << setprecision(15);
    }
} set_up_io;
// ===== template.hpp =====

#ifdef DEBUGF
#include "cpl/template/debug.hpp"
#else
#define DBG(x) (void) 0
#endif

// ===== fenwick_tree.hpp =====

#include <cassert>
#include <vector>

// ===== operations.hpp =====

#include <limits>
#include <utility>

template <typename T>
struct Add {
    using Value = T;
    static Value id() {
        return T(0);
    }
    static Value op(const Value &lhs, const Value &rhs) {
        return lhs + rhs;
    }
    static Value inv(const Value &x) {
        return -x;
    }
};

template <typename T>
struct Mul {
    using Value = T;
    static Value id() {
        return Value(1);
    }
    static Value op(const Value &lhs, const Value &rhs) {
        return lhs * rhs;
    }
    static Value inv(const Value &x) {
        return Value(1) / x;
    }
};

template <typename T>
struct Min {
    using Value = T;
    static Value id() {
        return std::numeric_limits<T>::max();
    }
    static Value op(const Value &lhs, const Value &rhs) {
        return std::min(lhs, rhs);
    }
};

template <typename T>
struct Max {
    using Value = T;
    static Value id() {
        return std::numeric_limits<Value>::min();
    }
    static Value op(const Value &lhs, const Value &rhs) {
        return std::max(lhs, rhs);
    }
};

template <typename T>
struct Xor {
    using Value = T;
    static Value id() {
        return T(0);
    }
    static Value op(const Value &lhs, const Value &rhs) {
        return lhs ^ rhs;
    }
    static Value inv(const Value &x) {
        return x;
    }
};

template <typename Monoid>
struct Reversible {
    using Value = std::pair<typename Monoid::Value, typename Monoid::Value>;
    static Value id() {
        return Value(Monoid::id(), Monoid::id());
    }
    static Value op(const Value &v1, const Value &v2) {
        return Value(
            Monoid::op(v1.first, v2.first),
            Monoid::op(v2.second, v1.second));
    }
};

// ===== operations.hpp =====

template <typename CommutativeGroup>
class FenwickTree {
public:
    using Value = typename CommutativeGroup::Value;

private:
    std::vector<Value> data;

public:
    FenwickTree(int n) : data(n, CommutativeGroup::id()) {}

    void add(int idx, const Value &x) {
        assert(idx >= 0 && idx < (int) data.size());
        for (; idx < (int) data.size(); idx |= idx + 1) {
            data[idx] = CommutativeGroup::op(data[idx], x);
        }
    }

    Value sum(int r) const {
        assert(r >= 0 && r <= (int) data.size());
        Value ret = CommutativeGroup::id();
        for (; r > 0; r &= r - 1) {
            ret = CommutativeGroup::op(ret, data[r - 1]);
        }
        return ret;
    }

    Value sum(int l, int r) const {
        assert(l >= 0 && l <= r && r <= (int) data.size());
        return CommutativeGroup::op(sum(r), CommutativeGroup::inv(sum(l)));
    }
};

template <typename T>
using FenwickTreeAdd = FenwickTree<Add<T>>;
// ===== fenwick_tree.hpp =====

class OfflineRectangleAddPointGet {
    i32 n;
    Vec<Vec<pair<i32, i32>>> add, sub;
    i32 q;
    Vec<Vec<pair<i32, i32>>> queries;
    
public:
    OfflineRectangleAddPointGet(i32 n) : n(n), add(n + 1), sub(n + 1), q(0), queries(n) {}
    
    void add_rect(i32 xl, i32 xr, i32 yl, i32 yr) {
        assert(0 <= xl && xl <= xr && xr <= n);
        assert(0 <= yl && yl <= yr && yr <= n);
        add[xl].emplace_back(yl, yr);
        sub[xr].emplace_back(yl, yr);
    }
    
    void add_query(i32 x, i32 y) {
        assert(0 <= x && x < n);
        assert(0 <= y && y < n);
        queries[x].emplace_back(y, q++);
    }
    
    Vec<i32> solve() const {
        FenwickTreeAdd<i32> fw(n + 1);
        Vec<i32> ans(q, 0);
        REP(i, n) {
            for (auto [l, r] : add[i]) {
                fw.add(l, 1);
                fw.add(r, -1);
            }
            for (auto [l, r] : sub[i]) {
                fw.add(l, -1);
                fw.add(r, 1);
            }
            for (auto [y, qi] : queries[i]) {
                ans[qi] = fw.sum(y + 1);
            }
        }
        return ans;
    }
};

int main() {
    i32 n, m, q;
    cin >> n >> m >> q;
    Vec<i32> p(n);
    Vec<i32> is_ac(n);
    REP(i, n) {
        cin >> p[i];
        --p[i];
        string res;
        cin >> res;
        is_ac[i] = (i32) (res == "AC");
    }
    Vec<i32> l(q), r(q);
    REP(i, q) {
        cin >> l[i] >> r[i];
        --l[i];
    }
    Vec<i32> prev_ac(n, -1), next_ac(n, n);
    {
        Vec<i32> pv(m, -1);
        REP(i, n) {
            prev_ac[i] = pv[p[i]];
            if (is_ac[i]) {
                pv[p[i]] = i;
            }
        }
    }
    {
        Vec<i32> nt(m, n);
        PER(i, n) {
            next_ac[i] = nt[p[i]];
            if (is_ac[i]) {
                nt[p[i]] = i;
            }
        }
    }
    OfflineRectangleAddPointGet ac(n + 1), pena(n + 1);
    REP(i, n) {
        if (is_ac[i]) {
            ac.add_rect(prev_ac[i] + 1, i + 1, i + 1, n + 1);
        } else {
            pena.add_rect(prev_ac[i] + 1, i + 1, next_ac[i] + 1, n + 1);
        }
    }
    REP(i, q) {
        ac.add_query(l[i], r[i]);
        pena.add_query(l[i], r[i]);
    }
    Vec<i32> acc = ac.solve(), penac = pena.solve();
    REP(i, q) {
        cout << acc[i] << ' ' << penac[i] << '\n';
    }
}
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