結果

問題 No.2333 Slime Structure
ユーザー tokusakuraitokusakurai
提出日時 2023-05-28 15:14:10
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 184 ms / 3,000 ms
コード長 8,718 bytes
コンパイル時間 2,667 ms
コンパイル使用メモリ 214,620 KB
実行使用メモリ 53,160 KB
最終ジャッジ日時 2023-08-27 11:41:29
合計ジャッジ時間 10,455 ms
ジャッジサーバーID
（参考情報） 		judge12 / judge14
このコードへのチャレンジ
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テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 1 ms
4,384 KB
testcase_01 AC 1 ms
4,376 KB
testcase_02 AC 88 ms
27,252 KB
testcase_03 AC 111 ms
31,172 KB
testcase_04 AC 123 ms
31,000 KB
testcase_05 AC 94 ms
28,592 KB
testcase_06 AC 138 ms
32,456 KB
testcase_07 AC 168 ms
52,492 KB
testcase_08 AC 169 ms
52,496 KB
testcase_09 AC 172 ms
52,116 KB
testcase_10 AC 171 ms
51,704 KB
testcase_11 AC 169 ms
52,972 KB
testcase_12 AC 165 ms
51,632 KB
testcase_13 AC 166 ms
52,048 KB
testcase_14 AC 166 ms
53,160 KB
testcase_15 AC 166 ms
52,200 KB
testcase_16 AC 167 ms
51,916 KB
testcase_17 AC 166 ms
52,160 KB
testcase_18 AC 168 ms
51,608 KB
testcase_19 AC 168 ms
51,560 KB
testcase_20 AC 168 ms
51,852 KB
testcase_21 AC 170 ms
51,844 KB
testcase_22 AC 178 ms
51,800 KB
testcase_23 AC 176 ms
51,540 KB
testcase_24 AC 178 ms
52,636 KB
testcase_25 AC 177 ms
51,532 KB
testcase_26 AC 180 ms
52,116 KB
testcase_27 AC 184 ms
51,460 KB
testcase_28 AC 177 ms
52,068 KB
testcase_29 AC 178 ms
52,996 KB
testcase_30 AC 175 ms
52,648 KB
testcase_31 AC 180 ms
51,688 KB
testcase_32 AC 153 ms
51,904 KB
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>
using namespace std;
#define rep(i, n) for (int i = 0; i < (n); i++)
#define per(i, n) for (int i = (n)-1; i >= 0; i--)
#define rep2(i, l, r) for (int i = (l); i < (r); i++)
#define per2(i, l, r) for (int i = (r)-1; i >= (l); i--)
#define each(e, v) for (auto &e : v)
#define MM << " " <<
#define pb push_back
#define eb emplace_back
#define all(x) begin(x), end(x)
#define rall(x) rbegin(x), rend(x)
#define sz(x) (int)x.size()
using ll = long long;
using pii = pair<int, int>;
using pil = pair<int, ll>;
using pli = pair<ll, int>;
using pll = pair<ll, ll>;

template <typename T>
using minheap = priority_queue<T, vector<T>, greater<T>>;

template <typename T>
using maxheap = priority_queue<T>;

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

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

template <typename T>
int flg(T x, int i) {
    return (x >> i) & 1;
}

int popcount(int x) { return __builtin_popcount(x); }
int popcount(ll x) { return __builtin_popcountll(x); }
int topbit(int x) { return (x == 0 ? -1 : 31 - __builtin_clz(x)); }
int topbit(ll x) { return (x == 0 ? -1 : 63 - __builtin_clzll(x)); }
int botbit(int x) { return (x == 0 ? -1 : __builtin_ctz(x)); }
int botbit(ll x) { return (x == 0 ? -1 : __builtin_ctzll(x)); }

template <typename T>
void print(const vector<T> &v, T x = 0) {
    int n = v.size();
    for (int i = 0; i < n; i++) cout << v[i] + x << (i == n - 1 ? '\n' : ' ');
    if (v.empty()) cout << '\n';
}

template <typename T>
void printn(const vector<T> &v, T x = 0) {
    int n = v.size();
    for (int i = 0; i < n; i++) cout << v[i] + x << '\n';
}

template <typename T>
int lb(const vector<T> &v, T x) {
    return lower_bound(begin(v), end(v), x) - begin(v);
}

template <typename T>
int ub(const vector<T> &v, T x) {
    return upper_bound(begin(v), end(v), x) - begin(v);
}

template <typename T>
void rearrange(vector<T> &v) {
    sort(begin(v), end(v));
    v.erase(unique(begin(v), end(v)), end(v));
}

template <typename T>
vector<int> id_sort(const vector<T> &v, bool greater = false) {
    int n = v.size();
    vector<int> ret(n);
    iota(begin(ret), end(ret), 0);
    sort(begin(ret), end(ret), [&](int i, int j) { return greater ? v[i] > v[j] : v[i] < v[j]; });
    return ret;
}

template <typename T>
void reorder(vector<T> &a, const vector<int> &ord) {
    int n = a.size();
    vector<T> b(n);
    for (int i = 0; i < n; i++) b[i] = a[ord[i]];
    swap(a, b);
}

template <typename T>
T floor(T x, T y) {
    assert(y != 0);
    if (y < 0) x = -x, y = -y;
    return (x >= 0 ? x / y : (x - y + 1) / y);
}

template <typename T>
T ceil(T x, T y) {
    assert(y != 0);
    if (y < 0) x = -x, y = -y;
    return (x >= 0 ? (x + y - 1) / y : x / y);
}

template <typename S, typename T>
pair<S, T> operator+(const pair<S, T> &p, const pair<S, T> &q) {
    return make_pair(p.first + q.first, p.second + q.second);
}

template <typename S, typename T>
pair<S, T> operator-(const pair<S, T> &p, const pair<S, T> &q) {
    return make_pair(p.first - q.first, p.second - q.second);
}

template <typename S, typename T>
istream &operator>>(istream &is, pair<S, T> &p) {
    S a;
    T b;
    is >> a >> b;
    p = make_pair(a, b);
    return is;
}

template <typename S, typename T>
ostream &operator<<(ostream &os, const pair<S, T> &p) {
    return os << p.first << ' ' << p.second;
}

struct io_setup {
    io_setup() {
        ios_base::sync_with_stdio(false);
        cin.tie(NULL);
        cout << fixed << setprecision(15);
    }
} io_setup;

constexpr int inf = (1 << 30) - 1;
constexpr ll INF = (1LL << 60) - 1;
// constexpr int MOD = 1000000007;
constexpr int MOD = 998244353;

template <typename Monoid>
struct Segment_Tree {
    using M = typename Monoid::V;
    int n, m;
    vector<M> seg;

    // f(f(a,b),c) = f(a,f(b,c)), f(e1,a) = f(a,e1) = a

    Segment_Tree(const vector<M> &v) : n(v.size()) {
        m = 1;
        while (m < n) m <<= 1;
        seg.assign(2 * m, Monoid::id);
        copy(begin(v), end(v), begin(seg) + m);
        build();
    }

    Segment_Tree(int n, M x = Monoid::id) : Segment_Tree(vector<M>(n, x)) {}

    void set(int i, const M &x) { seg[m + i] = x; }

    void build() {
        for (int i = m - 1; i > 0; i--) seg[i] = Monoid::merge(seg[2 * i], seg[2 * i + 1]);
    }

    void update(int i, const M &x, bool apply = false) {
        seg[i + m] = apply ? Monoid::merge(seg[i + m], x) : x;
        i += m;
        while (i >>= 1) seg[i] = Monoid::merge(seg[2 * i], seg[2 * i + 1]);
    }

    M query(int l, int r) const {
        l = max(l, 0), r = min(r, n);
        M L = Monoid::id, R = Monoid::id;
        l += m, r += m;
        while (l < r) {
            if (l & 1) L = Monoid::merge(L, seg[l++]);
            if (r & 1) R = Monoid::merge(seg[--r], R);
            l >>= 1, r >>= 1;
        }
        return Monoid::merge(L, R);
    }

    M operator[](int i) const { return seg[m + i]; }

    template <typename C>
    int find_subtree(int i, const C &check, M &x, int type) const {
        while (i < m) {
            M nxt = type ? Monoid::merge(seg[2 * i + type], x) : Monoid::merge(x, seg[2 * i + type]);
            if (check(nxt)) {
                i = 2 * i + type;
            } else {
                x = nxt;
                i = 2 * i + (type ^ 1);
            }
        }
        return i - m;
    }

    // check(区間 [l,r] での演算結果) を満たす最小の r (存在しなければ n)
    template <typename C>
    int find_first(int l, const C &check) const {
        M L = Monoid::id;
        int a = l + m, b = 2 * m;
        while (a < b) {
            if (a & 1) {
                M nxt = Monoid::merge(L, seg[a]);
                if (check(nxt)) return find_subtree(a, check, L, 0);
                L = nxt;
                a++;
            }
            a >>= 1, b >>= 1;
        }
        return n;
    }

    // check((区間 [l,r) での演算結果)) を満たす最大の l (存在しなければ -1)
    template <typename C>
    int find_last(int r, const C &check) const {
        M R = Monoid::id;
        int a = m, b = r + m;
        while (a < b) {
            if ((b & 1) || a == 1) {
                M nxt = Monoid::merge(seg[--b], R);
                if (check(nxt)) return find_subtree(b, check, R, 1);
                R = nxt;
            }
            a >>= 1, b >>= 1;
        }
        return -1;
    }
};

struct Data_1 {
    ll l, r, ma, sum;

    constexpr Data_1() : l(-INF), r(-INF), ma(-INF), sum(0) {}

    Data_1(ll x, ll t) {
        if (x >= 0) {
            l = r = ma = x * t;
            sum = x * t;
        } else {
            l = r = ma = x;
            sum = x * t;
        }
    }
};

struct Monoid_1 {
    using V = Data_1;
    static V merge(V a, V b) {
        if (a.l == -INF) return b;
        if (b.l == -INF) return a;
        V c;
        c.l = max(a.l, a.sum + b.l);
        c.r = max(b.r, a.r + b.sum);
        c.sum = a.sum + b.sum;
        c.ma = max({a.ma, b.ma, a.r + b.l});
        return c;
    }
    static const V id;
};

constexpr Monoid_1::V Monoid_1::id = Data_1();

struct Func_1 {
    constexpr Func_1() {}
};

struct Operator_1 {
    using V = Func_1;
    static V merge(V a, V b) { return a; }
    static const V id;
};

constexpr Operator_1::V Operator_1::id = Func_1();

struct Acted_Monoid_1 {
    using Monoid = Monoid_1;
    using Operator = Operator_1;
    using M = typename Monoid::V;
    using O = typename Operator::V;
    static M merge(M a, O b) { return a; }
};

void solve() {
    int N;
    cin >> N;

    vector<ll> a(N), b(N);
    rep(i, N) cin >> a[i] >> b[i];

    vector<ll> xs;
    xs.eb(0);
    ll s = 0;
    rep(i, N) {
        s += b[i];
        xs.eb(s);
    }

    int Q;
    cin >> Q;

    vector<ll> t(Q), x(Q), y(Q);
    rep(i, Q) {
        cin >> t[i] >> x[i] >> y[i];
        if (t[i] == 1) {
            x[i]--;
            xs.eb(x[i]), xs.eb(x[i] + 1);
        } else {
            x[i]--;
            xs.eb(x[i]), xs.eb(y[i]);
        }
    }

    rearrange(xs);
    int K = sz(xs);

    Segment_Tree<Monoid_1> seg(K - 1);
    s = 0;
    int p = 0;
    rep(i, N) {
        while (xs[p] < s + b[i]) {
            seg.set(p, Data_1(a[i], xs[p + 1] - xs[p]));
            p++;
        }
        s += b[i];
    }
    seg.build();

    rep(i, Q) {
        if (t[i] == 1) {
            int t = lb(xs, x[i]);
            seg.update(t, Data_1(y[i], 1));
        } else {
            int L = lb(xs, x[i]), R = lb(xs, y[i]);
            cout << seg.query(L, R).ma << '\n';
        }
    }
}

int main() {
    int T = 1;
    // cin >> T;
    while (T--) solve();
}
0