結果
問題 | No.899 γatheree |
ユーザー | 👑 hos.lyric |
提出日時 | 2019-10-04 22:44:03 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 5,678 bytes |
コンパイル時間 | 2,237 ms |
コンパイル使用メモリ | 120,308 KB |
実行使用メモリ | 25,856 KB |
最終ジャッジ日時 | 2024-10-03 08:14:44 |
合計ジャッジ時間 | 13,621 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
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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 | 6 ms
8,448 KB |
testcase_01 | AC | 6 ms
8,448 KB |
testcase_02 | AC | 6 ms
8,448 KB |
testcase_03 | AC | 5 ms
8,320 KB |
testcase_04 | AC | 5 ms
8,448 KB |
testcase_05 | AC | 5 ms
8,448 KB |
testcase_06 | AC | 574 ms
25,856 KB |
testcase_07 | AC | 607 ms
25,856 KB |
testcase_08 | AC | 595 ms
25,728 KB |
testcase_09 | AC | 598 ms
25,856 KB |
testcase_10 | AC | 603 ms
25,728 KB |
testcase_11 | AC | 590 ms
25,728 KB |
testcase_12 | AC | 579 ms
25,728 KB |
testcase_13 | AC | 583 ms
25,856 KB |
testcase_14 | AC | 568 ms
25,856 KB |
testcase_15 | AC | 585 ms
25,856 KB |
testcase_16 | AC | 599 ms
25,856 KB |
testcase_17 | AC | 611 ms
25,728 KB |
testcase_18 | AC | 575 ms
25,856 KB |
testcase_19 | AC | 594 ms
25,856 KB |
testcase_20 | AC | 589 ms
25,856 KB |
testcase_21 | WA | - |
testcase_22 | WA | - |
testcase_23 | WA | - |
ソースコード
// #pragma GCC optimize ("Ofast") // #pragma GCC optimize ("unroll-loops") // #pragma GCC target ("avx") #include <cassert> #include <cmath> #include <cstdint> #include <cstdio> #include <cstdlib> #include <cstring> #include <algorithm> #include <bitset> #include <complex> #include <deque> #include <functional> #include <iostream> #include <map> #include <numeric> #include <queue> #include <set> #include <sstream> #include <string> #include <unordered_map> #include <unordered_set> #include <utility> #include <vector> using namespace std; using Int = long long; template <class T1, class T2> ostream &operator<<(ostream &os, const pair<T1, T2> &a) { return os << "(" << a.first << ", " << a.second << ")"; }; template <class T> void pv(T a, T b) { for (T i = a; i != b; ++i) cerr << *i << " "; cerr << endl; } template <class T> void chmin(T &t, const T &f) { if (t > f) t = f; } template <class T> void chmax(T &t, const T &f) { if (t < f) t = f; } template <class T, class S> struct SegmentTree { using OpTT = std::function<T(const T &, const T &)>; using OpSS = std::function<S(const S &, const S &)>; using OpST = std::function<T(const S &, const T &, int)>; const OpTT opTT; const OpSS opSS; const OpST opST; const T idT; const S idS; int n; vector<T> ts; vector<S> ss; SegmentTree(int n_, const OpTT opTT, const OpSS opSS, const OpST opST, const T &idT, const S &idS) : opTT(opTT), opSS(opSS), opST(opST), idT(idT), idS(idS) { for (n = 1; n < n_; n <<= 1) {} ts.assign(n << 1, idT); ss.assign(n << 1, idS); } T &at(int a) { return ts[n + a]; } void build() { for (int a = n; --a; ) ts[a] = opTT(ts[a << 1], ts[a << 1 | 1]); } T query(int a, int b, const S &s) { return query(1, 0, n, a, b, s); } private: T query(int u, int l, int r, int a, int b, const S &s) { if (a < l) a = l; if (b > r) b = r; if (a >= b) return idT; if (a == l && b == r) { ts[u] = opST(s, ts[u], r - l); ss[u] = opSS(s, ss[u]); return ts[u]; } const int uL = u << 1, uR = u << 1 | 1; const int mid = (l + r) >> 1; { ts[uL] = opST(ss[u], ts[uL], mid - l); ts[uR] = opST(ss[u], ts[uR], r - mid); ss[uL] = opSS(ss[u], ss[uL]); ss[uR] = opSS(ss[u], ss[uR]); ss[u] = idS; } const T resL = query(uL, l, mid, a, b, s); const T resR = query(uR, mid, r, a, b, s); ts[u] = opTT(ts[uL], ts[uR]); return opTT(resL, resR); } }; struct S { bool f; Int x; }; S opSS(const S &sa, const S &sb) { return sa.f ? sa : sb; } Int opST(const S &s, const Int &t, int sz) { return s.f ? (s.x * sz) : t; } constexpr S IdS{false, 0}; constexpr int MAX = 200010; int N; int U[MAX], V[MAX]; Int A[MAX]; int Q; int X[MAX]; vector<int> G[MAX]; int par[MAX], dep[MAX]; int zeit, dis[MAX], fin[MAX]; pair<pair<int, int>, int> ps[MAX]; int ord[MAX]; pair<int, int> ls[MAX], rs[MAX]; pair<int, int> lls[MAX], rrs[MAX]; void dfs(int u, int p) { par[u] = p; dep[u] = (p == -1) ? 0 : (dep[p] + 1); dis[u] = zeit++; for (const int i : G[u]) { const int v = U[i] ^ V[i] ^ u; if (v != p) { dfs(v, u); } } fin[u] = zeit++; } int main() { for (; ~scanf("%d", &N); ) { for (int i = 0; i < N - 1; ++i) { scanf("%d%d", &U[i], &V[i]); } for (int u = 0; u < N; ++u) { scanf("%lld", &A[u]); } scanf("%d", &Q); for (int q = 0; q < Q; ++q) { scanf("%d", &X[q]); } for (int u = 0; u < N; ++u) { G[u].clear(); } for (int i = 0; i < N - 1; ++i) { G[U[i]].push_back(i); G[V[i]].push_back(i); } zeit = 0; dfs(0, -1); // cerr<<"dis = ";pv(dis,dis+N); // cerr<<"fin = ";pv(fin,fin+N); for (int u = 0; u < N; ++u) { ps[u] = make_pair(make_pair(dep[u], dis[u]), u); } sort(ps, ps + N); for (int j = 0; j < N; ++j) { ord[ps[j].second] = j; } fill(ls, ls + N, make_pair(N, -1)); fill(rs, rs + N, make_pair(-1, -1)); fill(lls, lls + N, make_pair(N, -1)); fill(rrs, rrs + N, make_pair(-1, -1)); for (int u = 0; u < N; ++u) { if (par[u] != -1) { chmin(ls[par[u]], make_pair(ord[u], u)); chmax(rs[par[u]], make_pair(ord[u], u)); if (par[par[u]] != -1) { chmin(lls[par[par[u]]], make_pair(ord[u], u)); chmax(rrs[par[par[u]]], make_pair(ord[u], u)); } } } // cerr<<"ps = ";pv(ps,ps+N); // cerr<<"ls = ";pv(ls,ls+N); // cerr<<"rs = ";pv(rs,rs+N); // cerr<<"lls = ";pv(lls,lls+N); // cerr<<"rrs = ";pv(rrs,rrs+N); SegmentTree<Int, S> seg(N, plus<Int>(), opSS, opST, 0, IdS); for (int u = 0; u < N; ++u) { seg.at(ord[u]) = A[u]; } seg.build(); for (int q = 0; q < Q; ++q) { const int u = X[q]; vector<pair<int, int>> intervals; if (par[u] != -1) { if (par[par[u]] != -1) { intervals.emplace_back(ord[par[par[u]]], ord[par[par[u]]]); } intervals.emplace_back(ord[par[u]], ord[par[u]]); intervals.emplace_back(ls[par[u]].first, rs[par[u]].first); } else { intervals.emplace_back(ord[u], ord[u]); } if (ls[u].second != -1) { intervals.emplace_back(ls[u].first, rs[u].first); if (lls[u].second != -1) { intervals.emplace_back(lls[u].first, rrs[u].first); } } int ans = 0; for (const auto &interval : intervals) { ans += seg.query(interval.first, interval.second + 1, IdS); seg.query(interval.first, interval.second + 1, S{true, 0}); } seg.query(ord[u], ord[u] + 1, S{true, ans}); printf("%d\n", ans); } } return 0; }