結果

問題 No.900 aδδitivee
ユーザー haruki_Kharuki_K
提出日時 2020-03-06 05:44:50
言語 C++14
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 152 ms / 2,000 ms
コード長 10,405 bytes
コンパイル時間 2,360 ms
コンパイル使用メモリ 194,056 KB
実行使用メモリ 19,332 KB
最終ジャッジ日時 2024-10-14 02:35:11
合計ジャッジ時間 7,146 ms
ジャッジサーバーID
（参考情報） 		judge2 / judge3
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 2 ms
5,248 KB
testcase_01 AC 2 ms
5,248 KB
testcase_02 AC 2 ms
5,248 KB
testcase_03 AC 2 ms
5,248 KB
testcase_04 AC 2 ms
5,248 KB
testcase_05 AC 2 ms
5,248 KB
testcase_06 AC 2 ms
5,248 KB
testcase_07 AC 152 ms
17,284 KB
testcase_08 AC 151 ms
17,292 KB
testcase_09 AC 144 ms
17,292 KB
testcase_10 AC 143 ms
17,284 KB
testcase_11 AC 146 ms
17,292 KB
testcase_12 AC 144 ms
17,296 KB
testcase_13 AC 142 ms
17,292 KB
testcase_14 AC 147 ms
17,292 KB
testcase_15 AC 145 ms
17,292 KB
testcase_16 AC 144 ms
17,288 KB
testcase_17 AC 148 ms
17,288 KB
testcase_18 AC 148 ms
17,416 KB
testcase_19 AC 143 ms
17,284 KB
testcase_20 AC 148 ms
17,292 KB
testcase_21 AC 143 ms
17,416 KB
testcase_22 AC 119 ms
19,328 KB
testcase_23 AC 120 ms
19,204 KB
testcase_24 AC 120 ms
19,328 KB
testcase_25 AC 119 ms
19,332 KB
testcase_26 AC 122 ms
19,324 KB
testcase_27 AC 120 ms
19,196 KB
testcase_28 AC 119 ms
19,332 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 # 

// >>> TEMPLATES
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ld = long double;
using i32 = int32_t;
using i64 = int64_t;
#define int ll
#define double ld
#define rep(i,n) for (int i = 0; i < (int)(n); i++)
#define rep1(i,n) for (int i = 1; i <= (int)(n); i++)
#define repR(i,n) for (int i = (int)(n)-1; i >= 0; i--)
#define rep1R(i,n) for (int i = (int)(n); i >= 1; i--)
#define loop(i,a,B) for (int i = a; i B; i++)
#define loopR(i,a,B) for (int i = a; i B; i--)
#define all(x) (x).begin(), (x).end()
#define allR(x) (x).rbegin(), (x).rend()
#define pb push_back
#define eb emplace_back
#define mp make_pair
#define fst first
#define snd second
auto constexpr INF32 = numeric_limits<int32_t>::max()/2-1;
auto constexpr INF64 = numeric_limits<int64_t>::max()/2-1;
auto constexpr INF   = numeric_limits<int>::max()/2-1;
#ifdef LOCAL
#include "debug.hpp"
#define dump(...) cerr << "[" << setw(3) << __LINE__ << ":" << __FUNCTION__ << "] ", dump_impl(#__VA_ARGS__, __VA_ARGS__)
#define say(x) cerr << "[" << __LINE__ << ":" << __FUNCTION__ << "] " << x << endl
#define debug if (1)
#else
#define dump(...) (void)(0)
#define say(x) (void)(0)
#define debug if (0)
#endif
template <class T> using pque_max = priority_queue<T>;
template <class T> using pque_min = priority_queue<T, vector<T>, greater<T> >;
template <class T, class = typename T::iterator, class = typename enable_if<!is_same<T, string>::value>::type>
ostream& operator<<(ostream& os, T const& v) { bool f = true; for (auto const& x : v) os << (f ? "" : " ") << x, f = false; return os; }
template <class T, class = typename T::iterator, class = typename enable_if<!is_same<T, string>::value>::type>
istream& operator>>(istream& is, T &v) { for (auto& x : v) is >> x; return is; }
template <class T, class S> istream& operator>>(istream& is, pair<T,S>& p) { return is >> p.first >> p.second; }
struct IOSetup { IOSetup() { cin.tie(nullptr); ios::sync_with_stdio(false); cout << fixed << setprecision(15); } } iosetup;
template <class F> struct FixPoint : private F {
    constexpr FixPoint(F&& f) : F(forward<F>(f)) {}
    template <class... T> constexpr auto operator()(T&&... x) const { return F::operator()(*this, forward<T>(x)...); }
};
struct MakeFixPoint {
    template <class F> constexpr auto operator|(F&& f) const { return FixPoint<F>(forward<F>(f)); }
};
#define MFP MakeFixPoint()|
#define def(name, ...) auto name = MFP [&](auto &&name, __VA_ARGS__)
template <class T, size_t d> struct vec_impl {
    using type = vector<typename vec_impl<T,d-1>::type>;
    template <class... U> static type make_v(size_t n, U&&... x) { return type(n, vec_impl<T,d-1>::make_v(forward<U>(x)...)); }
};
template <class T> struct vec_impl<T,0> { using type = T; static type make_v(T const& x = {}) { return x; } };
template <class T, size_t d = 1> using vec = typename vec_impl<T,d>::type;
template <class T, size_t d = 1, class... Args> auto make_v(Args&&... args) { return vec_impl<T,d>::make_v(forward<Args>(args)...); }
template <class T> void quit(T const& x) { cout << x << endl; exit(0); }
template <class T> constexpr bool chmin(T& x, T const& y) { if (x > y) { x = y; return true; } return false; }
template <class T> constexpr bool chmax(T& x, T const& y) { if (x < y) { x = y; return true; } return false; }
template <class It> constexpr auto sumof(It b, It e) { return accumulate(b,e,typename iterator_traits<It>::value_type{}); }
template <class T> int sz(T const& x) { return x.size(); }
template <class C, class T> int lbd(C const& v, T const& x) {
    return lower_bound(v.begin(), v.end(), x)-v.begin();
}
template <class C, class T> int ubd(C const& v, T const& x) {
    return upper_bound(v.begin(), v.end(), x)-v.begin();
}
template <class C, class F> int ppt(C const& v, F f) {
    return partition_point(v.begin(), v.end(), f)-v.begin();
}
// <<<
// >>> HLD
struct HLD {
    vector<vector<int32_t>> g;
    vector<int32_t> vid,inv,head,sz,dep,par;
    bool built = false;
    void dfs1(int x) {
        for (auto &y : g[x]) {
            if (y == par[x]) {
                swap(y, g[x].back());
                g[x].pop_back();
                break;
            }
        }
        for (auto &y : g[x]) {
            par[y] = x;
            dep[y] = dep[x] + 1;
            dfs1(y);
            sz[x] += sz[y];
            if (sz[y] > sz[g[x][0]]) swap(y, g[x][0]);
        }
    }
    void dfs2(int x, int &id) {
        vid[x] = id++;
        for (auto y : g[x]) {
            head[y] = (y == g[x][0] ? head[x] : y);
            dfs2(y,id);
        }
    }
    HLD(int n) : g(n),vid(n),inv(n),head(n),sz(n,1),dep(n,0),par(n,-1) {}
    void add_edge(int x, int y) {
        g[x].push_back(y);
        g[y].push_back(x);
        built = false;
    }
    void build(int root = 0) {
        dfs1(root);
        head[root] = root;
        int id = 0;
        dfs2(root,id);
        rep (x,g.size()) inv[vid[x]] = x;
        built = true;
    }
    int lca(int x, int y) const {
        assert(built);
        while (1) {
            if (vid[x] > vid[y]) swap(x,y);
            if (head[x] == head[y]) return x;
            y = par[head[y]];
        }
    }
    int dist(int x, int y) const {
        assert(built);
        return dep[x] + dep[y] - 2*dep[lca(x,y)];
    }
    int edge_id(int x, int y) const {
        assert(built);
        if (x == par[y]) return vid[y];
        if (y == par[x]) return vid[x];
        return -1;
    }
    vector<pair<int,int>> path(int x, int y, bool with_lca) const {
        assert(built);
        vector<pair<int,int>> ret;
        while (1) {
            if (vid[x] > vid[y]) swap(x,y);
            if (head[x] == head[y]) {
                ret.emplace_back(vid[x] + (with_lca ? 0 : 1), vid[y]+1);
                return ret;
            } else {
                ret.emplace_back(vid[head[y]], vid[y]+1);
                y = par[head[y]];
            }
        }
    }
    vector<pair<int,int>> vertices(int x, int y) const {
        return path(x,y,true);
    }
    vector<pair<int,int>> edges(int x, int y) const {
        return path(x,y,false);
    }
};
// <<<
// >>> lazy segment tree
template <class Handler>
struct LazySegtree : Handler {
    static int32_t btmbit(int64_t x) { return x ? __builtin_ctzll(x) : -1; }
//    static int32_t btmbit(int32_t x) { return x ? __builtin_ctz(x) : -1; }

    using Value = typename Handler::Value;
    using Lazy = typename Handler::Lazy;
    using Handler::unit_value; // () -> Value
    using Handler::unit_action; // () -> Lazy
    using Handler::merge; // (Value,Value) -> Value
    using Handler::act; // (Lazy,Lazy&,Value&) -> void

    vector<Value> v;
    vector<Lazy> lz;
    int n;
    mutable Lazy tmp;

    LazySegtree() {}
    template <class... T> LazySegtree(T&&... x) { init(forward<T>(x)...); }

    template <class F, class = decltype(declval<F>()(0))>
    void init(int n, F gen)  {
        assert(n >= 0); this->n = n;
        v.resize(2*n); lz.assign(n, unit_action());
        for (int i = 0; i < n; i++) v[n+i] = gen(i);
        for (int i = n-1; i >= 1; i--) v[i] = merge(v[2*i],v[2*i+1]);
    }
    void init(int n) { init(n, [&](int) { return unit_value(); }); }
    void init(int n, Value const& x) { init(n, [&](int) { return x; }); }
    void init(vector<Value> const& v) { init(v.size(), [&](int i) { return v[i]; }); }
    int size() const { return n; }


    void act(Lazy const& x, int i) { act(x, (i < n ? lz[i] : tmp), v[i]); }
    void flush(int k) {
        if (n <= k || lz[k] == unit_action()) return;
        act(lz[k], 2*k);
        act(lz[k], 2*k+1);
        lz[k] = unit_action();
    }
    void flush(int l, int r) {
        for (int p = __lg(l += n), q = __lg(r += n-1); q; --p,--q) {
            flush(l >> p); flush(r >> q);
        }
    }
    void build(int i) {
        i += n; i >>= btmbit(i);
        while (i >>= 1) v[i] = merge(v[2*i],v[2*i+1]);
    }
    Value get(int l, int r) {
        assert(0 <= l); assert(l <= r); assert(r <= n);
        flush(l,r);
        Value x = unit_value(), y = unit_value();
        for (l += n, r += n; l < r; l >>= 1, r >>= 1) {
            if (l&1) x = merge(x,v[l++]);
            if (r&1) y = merge(v[--r],y);
        }
        return merge(x,y);
    }
    void apply(int l, int r, Lazy const& x) {
        assert(0 <= l); assert(l <= r); assert(r <= n);
        flush(l,r);
        for (int a = l+n, b = r+n; a < b; a >>= 1, b >>= 1) {
            if (a&1) act(x, a++);
            if (b&1) act(x, --b);
        }
        build(l); build(r);
    }
    Value operator[](int i) const { return get(i); }
    Value get(int i) const {
        assert(0 <= i); assert(i < n);
        Value x = v[i += n];
        while (i >>= 1) act(lz[i], tmp, x);
        return x;
    }
    void set(int i, Value const& x) {
        assert(0 <= i); assert(i < n);
        for (int p = __lg(i += n); p; --p) flush(i >> p);
        for (v[i] = x; i >>= 1; ) v[i] = merge(v[2*i],v[2*i+1]);
    }
    vector<Value> dat() const {
        vector<Value> ret(size());
        for (int i = 0; i < size(); i++) ret[i] = get(i);
        return ret;
    }
};
// <<<

struct RangeSumAdd {
    using Value = pair<int,int>; // (value, node length)
    using Lazy = int;
    constexpr static Value unit_value() { return {0,0}; }
    constexpr static Lazy unit_action() { return 0; }
    constexpr static Value merge(Value const& x, Value const& y) {
        return { x.fst + y.fst, x.snd + y.snd };
    }
    static void act(Lazy x, Lazy &y, Value &z) {
        y += x;
        z.fst += x * z.snd;
    }
};

int32_t main() {
    int n; cin >> n;
    HLD hld(n);
    vector<tuple<int,int,int>> es;
    rep (i,n-1) {
        int u,v,w; cin >> u >> v >> w;
        hld.add_edge(u,v);
        es.eb(u,v,w);
    }
    hld.build();

    LazySegtree<RangeSumAdd> seg(n);
    for (auto tup : es) {
        int u,v,w; tie(u,v,w) = tup;
        seg.set(hld.edge_id(u,v), mp(w,1LL));
    }

    int q; cin >> q;
    rep (_,q) {
        int type; cin >> type;
        if (type == 1) {
            int a,x; cin >> a >> x;
            int l = hld.vid[a]+1, r = hld.vid[a] + hld.sz[a];
            seg.apply(l,r,x);
        } else {
            int b; cin >> b;
            int sum = 0;
            for (auto p : hld.edges(0,b)) {
                int l,r; tie(l,r) = p;
                sum += seg.get(l,r).fst;
            }
            cout << sum << "\n";
        }
    }
}
0