結果

問題 No.789 範囲の合計
ユーザー bolero
提出日時 2025-05-08 17:42:11
言語 C++23
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 144 ms / 1,000 ms
コード長 6,150 bytes
コンパイル時間 5,865 ms
コンパイル使用メモリ 333,192 KB
実行使用メモリ 7,844 KB
最終ジャッジ日時 2025-05-08 17:42:20
合計ジャッジ時間 8,102 ms
ジャッジサーバーID
(参考情報)
judge4 / judge3
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
other AC * 15
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 #

#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
#define rep(i, n) for (long long i = 0; i < (long long)(n); i++)
#define FOR(i, s, e) for (long long i = (long long)(s); i <= (long long)(e); i++)
#define printYesNo(is_ok) puts(is_ok ? "Yes" : "No");
#define SORT(v) sort(v.begin(), v.end());
#define RSORT(v) sort(v.rbegin(), v.rend());
#define REVERSE(v) reverse(v.begin(), v.end());

long long op(long long a, long long b)
{
    return a + b;
}

long long e()
{
    return 0;
}

template <class S, S (*op)(S, S), S (*e)()>
class dynamic_segtree
{
public:
    dynamic_segtree(size_t n) : n(n), root(nullptr) {}

    void set(size_t p, S x)
    {
        assert(p < n);
        set(root, 0, n, p, x);
    }

    S get(size_t p) const
    {
        assert(p < n);
        return get(root, 0, n, p);
    }

    S prod(size_t l, size_t r) const
    {
        assert(l <= r && r <= n);
        return prod(root, 0, n, l, r);
    }

    S all_prod() const { return root ? root->product : e(); }

    void reset(size_t l, size_t r)
    {
        assert(l <= r && r <= n);
        return reset(root, 0, n, l, r);
    }

    template <bool (*f)(S)>
    size_t max_right(size_t l) const
    {
        return max_right(l, [](S x)
                         { return f(x); });
    }

    template <class F>
    size_t max_right(size_t l, const F &f) const
    {
        assert(l <= n);
        S product = e();
        assert(f(product));
        return max_right(root, 0, n, l, f, product);
    }

    template <bool (*f)(S)>
    size_t min_left(size_t r) const
    {
        return min_left(r, [](S x)
                        { return f(x); });
    }

    template <class F>
    size_t min_left(size_t r, const F &f) const
    {
        assert(r <= n);
        S product = e();
        assert(f(product));
        return min_left(root, 0, n, r, f, product);
    }

private:
    struct node;
    using node_ptr = std::unique_ptr<node>;

    struct node
    {
        size_t index;
        S value, product;
        node_ptr left, right;

        node(size_t index, S value)
            : index(index),
              value(value),
              product(value),
              left(nullptr),
              right(nullptr) {}

        void update()
        {
            product = op(op(left ? left->product : e(), value),
                         right ? right->product : e());
        }
    };

    const size_t n;
    node_ptr root;

    void set(node_ptr &t, size_t a, size_t b, size_t p, S x) const
    {
        if (!t)
        {
            t = std::make_unique<node>(p, x);
            return;
        }
        if (t->index == p)
        {
            t->value = x;
            t->update();
            return;
        }
        size_t c = (a + b) >> 1;
        if (p < c)
        {
            if (t->index < p)
                std::swap(t->index, p), std::swap(t->value, x);
            set(t->left, a, c, p, x);
        }
        else
        {
            if (p < t->index)
                std::swap(p, t->index), std::swap(x, t->value);
            set(t->right, c, b, p, x);
        }
        t->update();
    }

    S get(const node_ptr &t, size_t a, size_t b, size_t p) const
    {
        if (!t)
            return e();
        if (t->index == p)
            return t->value;
        size_t c = (a + b) >> 1;
        if (p < c)
            return get(t->left, a, c, p);
        else
            return get(t->right, c, b, p);
    }

    S prod(const node_ptr &t, size_t a, size_t b, size_t l, size_t r) const
    {
        if (!t || b <= l || r <= a)
            return e();
        if (l <= a && b <= r)
            return t->product;
        size_t c = (a + b) >> 1;
        S result = prod(t->left, a, c, l, r);
        if (l <= t->index && t->index < r)
            result = op(result, t->value);
        return op(result, prod(t->right, c, b, l, r));
    }

    void reset(node_ptr &t, size_t a, size_t b, size_t l, size_t r) const
    {
        if (!t || b <= l || r <= a)
            return;
        if (l <= a && b <= r)
        {
            t.reset();
            return;
        }
        size_t c = (a + b) >> 1;
        reset(t->left, a, c, l, r);
        reset(t->right, c, b, l, r);
        t->update();
    }

    template <class F>
    size_t max_right(const node_ptr &t, size_t a, size_t b,
                     size_t l, const F &f, S &product) const
    {
        if (!t || b <= l)
            return n;
        if (f(op(product, t->product)))
        {
            product = op(product, t->product);
            return n;
        }
        size_t c = (a + b) >> 1;
        size_t result = max_right(t->left, a, c, l, f, product);
        if (result != n)
            return result;
        if (l <= t->index)
        {
            product = op(product, t->value);
            if (!f(product))
                return t->index;
        }
        return max_right(t->right, c, b, l, f, product);
    }

    template <class F>
    size_t min_left(const node_ptr &t, size_t a, size_t b,
                    size_t r, const F &f, S &product) const
    {
        if (!t || r <= a)
            return 0;
        if (f(op(t->product, product)))
        {
            product = op(t->product, product);
            return 0;
        }
        size_t c = (a + b) >> 1;
        size_t result = min_left(t->right, c, b, r, f, product);
        if (result != 0)
            return result;
        if (t->index < r)
        {
            product = op(t->value, product);
            if (!f(product))
                return t->index + 1;
        }
        return min_left(t->left, a, c, r, f, product);
    }
};

int main()
{
    int n;
    cin >> n;

    dynamic_segtree<long long, op, e> dynamic_seg(1000000001);

    long long ans = 0;
    rep(_, n)
    {
        int p;
        cin >> p;
        if (p == 0)
        {
            int x, y;
            cin >> x >> y;
            dynamic_seg.set(x, dynamic_seg.get(x) + y);
        }

        if (p == 1)
        {
            int l, r;
            cin >> l >> r;
            ans += dynamic_seg.prod(l, r + 1);
        }
    }

    cout << ans << endl;

    return 0;
};
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