結果
問題 | No.899 γatheree |
ユーザー | t98slider |
提出日時 | 2023-05-02 02:59:47 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
RE
|
実行時間 | - |
コード長 | 7,418 bytes |
コンパイル時間 | 2,163 ms |
コンパイル使用メモリ | 184,708 KB |
実行使用メモリ | 16,896 KB |
最終ジャッジ日時 | 2024-11-20 21:16:29 |
合計ジャッジ時間 | 11,139 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge2 |
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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 | RE | - |
testcase_02 | RE | - |
testcase_03 | RE | - |
testcase_04 | RE | - |
testcase_05 | RE | - |
testcase_06 | RE | - |
testcase_07 | RE | - |
testcase_08 | RE | - |
testcase_09 | RE | - |
testcase_10 | RE | - |
testcase_11 | RE | - |
testcase_12 | RE | - |
testcase_13 | RE | - |
testcase_14 | RE | - |
testcase_15 | RE | - |
testcase_16 | RE | - |
testcase_17 | RE | - |
testcase_18 | RE | - |
testcase_19 | RE | - |
testcase_20 | RE | - |
testcase_21 | AC | 470 ms
16,896 KB |
testcase_22 | AC | 448 ms
16,792 KB |
testcase_23 | AC | 446 ms
16,896 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; using ll = long long; template <class S, S (*op)(S, S), S (*e)(), class F, S (*mapping)(F, S), F (*composition)(F, F), F (*id)()> struct lazy_segtree { public: lazy_segtree() : lazy_segtree(0) {} lazy_segtree(int n) : lazy_segtree(std::vector<S>(n, e())) {} lazy_segtree(const std::vector<S>& v) : _n(int(v.size())) { log = ceil_pow2(_n); size = 1 << log; d = std::vector<S>(2 * size, e()); lz = std::vector<F>(size, id()); for (int i = 0; i < _n; i++) d[size + i] = v[i]; for (int i = size - 1; i >= 1; i--) { update(i); } } void set(int p, S x) { assert(0 <= p && p < _n); p += size; for (int i = log; i >= 1; i--) push(p >> i); d[p] = x; for (int i = 1; i <= log; i++) update(p >> i); } S get(int p) { assert(0 <= p && p < _n); p += size; for (int i = log; i >= 1; i--) push(p >> i); return d[p]; } S prod(int l, int r) { assert(0 <= l && l <= r && r <= _n); if (l == r) return e(); l += size; r += size; for (int i = log; i >= 1; i--) { if (((l >> i) << i) != l) push(l >> i); if (((r >> i) << i) != r) push(r >> i); } S sml = e(), smr = e(); while (l < r) { if (l & 1) sml = op(sml, d[l++]); if (r & 1) smr = op(d[--r], smr); l >>= 1; r >>= 1; } return op(sml, smr); } S all_prod() { return d[1]; } void apply(int p, F f) { assert(0 <= p && p < _n); p += size; for (int i = log; i >= 1; i--) push(p >> i); d[p] = mapping(f, d[p]); for (int i = 1; i <= log; i++) update(p >> i); } void apply(int l, int r, F f) { assert(0 <= l && l <= r && r <= _n); if (l == r) return; l += size; r += size; for (int i = log; i >= 1; i--) { if (((l >> i) << i) != l) push(l >> i); if (((r >> i) << i) != r) push((r - 1) >> i); } { int l2 = l, r2 = r; while (l < r) { if (l & 1) all_apply(l++, f); if (r & 1) all_apply(--r, f); l >>= 1; r >>= 1; } l = l2; r = r2; } for (int i = 1; i <= log; i++) { if (((l >> i) << i) != l) update(l >> i); if (((r >> i) << i) != r) update((r - 1) >> i); } } template <bool (*g)(S)> int max_right(int l) { return max_right(l, [](S x) { return g(x); }); } template <class G> int max_right(int l, G g) { assert(0 <= l && l <= _n); assert(g(e())); if (l == _n) return _n; l += size; for (int i = log; i >= 1; i--) push(l >> i); S sm = e(); do { while (l % 2 == 0) l >>= 1; if (!g(op(sm, d[l]))) { while (l < size) { push(l); l = (2 * l); if (g(op(sm, d[l]))) { sm = op(sm, d[l]); l++; } } return l - size; } sm = op(sm, d[l]); l++; } while ((l & -l) != l); return _n; } template <bool (*g)(S)> int min_left(int r) { return min_left(r, [](S x) { return g(x); }); } template <class G> int min_left(int r, G g) { assert(0 <= r && r <= _n); assert(g(e())); if (r == 0) return 0; r += size; for (int i = log; i >= 1; i--) push((r - 1) >> i); S sm = e(); do { r--; while (r > 1 && (r % 2)) r >>= 1; if (!g(op(d[r], sm))) { while (r < size) { push(r); r = (2 * r + 1); if (g(op(d[r], sm))) { sm = op(d[r], sm); r--; } } return r + 1 - size; } sm = op(d[r], sm); } while ((r & -r) != r); return 0; } private: int _n, size, log; std::vector<S> d; std::vector<F> lz; void update(int k) { d[k] = op(d[2 * k], d[2 * k + 1]); } void all_apply(int k, F f) { d[k] = mapping(f, d[k]); if (k < size) lz[k] = composition(f, lz[k]); } void push(int k) { all_apply(2 * k, lz[k]); all_apply(2 * k + 1, lz[k]); lz[k] = id(); } int ceil_pow2(int n) { int x = 0; while ((1U << x) < (unsigned int)(n)) x++; return x; } }; using S = ll; using F = bool; S e(){return 0;} S op(S l, S r){return l + r;} S mapping(F f, S x){return f ? 0 : x;} F composition(F f, F g){return f | g;} F id(){return false;} int main(){ ios::sync_with_stdio(false); cin.tie(0); int n, u, v, Q; cin >> n; vector<vector<int>> g(n), g2(n); vector<int> ent(n, -1), par(n, -1); vector<ll> tmp(n); for(int i = 1; i < n; i++){ cin >> u >> v; g[u].emplace_back(v); g[v].emplace_back(u); } queue<int> nxt; nxt.emplace(0); for(int timer = 0; timer < n; timer++){ v = nxt.front(); nxt.pop(); ent[v] = timer; for(auto &&u : g[v]){ if(par[v] == u) continue; g2[v].emplace_back(u); par[u] = v; nxt.emplace(u); } } for(int i = 0; i < n; i++){ cin >> v; tmp[ent[i]] = v; } lazy_segtree<S, op, e, F, mapping, composition, id> seg(tmp); auto f = [&](int v){ ll ans = 0; if(v){ int p = par[v], l = ent[g2[p][0]], r = ent[g2[p].back()] + 1; ans += seg.prod(l, r); seg.apply(l, r, true); ans += seg.get(ent[p]); seg.set(ent[p], 0); if(par[p] != -1){ ans += seg.get(ent[par[p]]); seg.set(ent[par[p]], 0); } }else{ ans += seg.get(0); seg.set(0, 0); } if(!g2[v].empty()){ int ch1 = g2[v][0], ch2 = g2[v].back(); int l = ent[ch1], r = ent[ch2] + 1; ans += seg.prod(l, r); seg.apply(l, r, true); l = g2[ch1].empty() ? n : ent[g2[ch1][0]]; r = g2[ch2].empty() ? n : ent[g2[ch2].back()] + 1; ans += seg.prod(l, r); seg.apply(l, r, true); } seg.set(ent[v], ans); return ans; }; cin >> Q; while(Q--){ cin >> v; cout << f(v) << '\n'; } }