結果
問題 | No.789 範囲の合計 |
ユーザー |
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提出日時 | 2025-04-30 10:02:52 |
言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 89 ms / 1,000 ms |
コード長 | 5,574 bytes |
コンパイル時間 | 4,401 ms |
コンパイル使用メモリ | 280,452 KB |
実行使用メモリ | 6,656 KB |
最終ジャッジ日時 | 2025-04-30 10:02:59 |
合計ジャッジ時間 | 6,382 ms |
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 |
---|---|
other | AC * 15 |
ソースコード
#include <bits/stdc++.h> #define rep(i, a, b) for (ll i = (ll)(a); i < (ll)(b); i++) using namespace std; typedef long long ll; 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); } }; ll op(ll a, ll b) { return a + b; } ll e() { return 0; } int main() { ios::sync_with_stdio(false); cin.tie(nullptr); int q; cin >> q; ll mx = 2e18; dynamic_segtree<ll, op, e> st(mx); ll ans = 0; ll mul = 1e9; while (q--) { ll t, x, y; cin >> t >> x >> y; if (t == 0) { x *= mul; st.set(x, st.prod(x, x + 1) + y); } if (t == 1) { x *= mul; y *= mul; ans += st.prod(x, y + 1); } } cout << ans << endl; }