結果
問題 | No.1030 だんしんぐぱーりない |
ユーザー | 👑 emthrm |
提出日時 | 2020-04-17 22:58:33 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 249 ms / 2,000 ms |
コード長 | 4,745 bytes |
コンパイル時間 | 2,746 ms |
コンパイル使用メモリ | 220,572 KB |
実行使用メモリ | 21,676 KB |
最終ジャッジ日時 | 2024-10-03 14:52:16 |
合計ジャッジ時間 | 9,949 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge5 |
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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
6,820 KB |
testcase_01 | AC | 2 ms
6,816 KB |
testcase_02 | AC | 2 ms
6,820 KB |
testcase_03 | AC | 2 ms
6,820 KB |
testcase_04 | AC | 2 ms
6,820 KB |
testcase_05 | AC | 170 ms
18,984 KB |
testcase_06 | AC | 137 ms
14,860 KB |
testcase_07 | AC | 85 ms
8,064 KB |
testcase_08 | AC | 92 ms
9,984 KB |
testcase_09 | AC | 139 ms
19,356 KB |
testcase_10 | AC | 56 ms
6,816 KB |
testcase_11 | AC | 148 ms
11,392 KB |
testcase_12 | AC | 142 ms
17,420 KB |
testcase_13 | AC | 125 ms
15,856 KB |
testcase_14 | AC | 173 ms
15,404 KB |
testcase_15 | AC | 70 ms
6,816 KB |
testcase_16 | AC | 145 ms
13,440 KB |
testcase_17 | AC | 140 ms
19,784 KB |
testcase_18 | AC | 191 ms
16,188 KB |
testcase_19 | AC | 93 ms
7,424 KB |
testcase_20 | AC | 114 ms
11,388 KB |
testcase_21 | AC | 108 ms
14,392 KB |
testcase_22 | AC | 110 ms
12,120 KB |
testcase_23 | AC | 145 ms
10,992 KB |
testcase_24 | AC | 101 ms
6,816 KB |
testcase_25 | AC | 128 ms
10,752 KB |
testcase_26 | AC | 71 ms
6,820 KB |
testcase_27 | AC | 82 ms
6,820 KB |
testcase_28 | AC | 153 ms
13,624 KB |
testcase_29 | AC | 108 ms
16,980 KB |
testcase_30 | AC | 103 ms
12,340 KB |
testcase_31 | AC | 118 ms
11,136 KB |
testcase_32 | AC | 144 ms
14,988 KB |
testcase_33 | AC | 149 ms
17,832 KB |
testcase_34 | AC | 57 ms
6,816 KB |
testcase_35 | AC | 248 ms
21,540 KB |
testcase_36 | AC | 220 ms
21,544 KB |
testcase_37 | AC | 249 ms
21,672 KB |
testcase_38 | AC | 244 ms
21,676 KB |
testcase_39 | AC | 236 ms
21,548 KB |
testcase_40 | AC | 2 ms
6,816 KB |
testcase_41 | AC | 2 ms
6,816 KB |
ソースコード
#define _USE_MATH_DEFINES #include <bits/stdc++.h> using namespace std; #define FOR(i,m,n) for(int i=(m);i<(n);++i) #define REP(i,n) FOR(i,0,n) #define ALL(v) (v).begin(),(v).end() using ll = long long; const int INF = 0x3f3f3f3f; const ll LINF = 0x3f3f3f3f3f3f3f3fLL; const double EPS = 1e-8; const int MOD = 1000000007; // const int MOD = 998244353; const int dy[] = {1, 0, -1, 0}, dx[] = {0, -1, 0, 1}; const int dy8[] = {1, 1, 0, -1, -1, -1, 0, 1}, dx8[] = {0, -1, -1, -1, 0, 1, 1, 1}; template <typename T, typename U> inline bool chmax(T &a, U b) { return a < b ? (a = b, true) : false; } template <typename T, typename U> inline bool chmin(T &a, U b) { return a > b ? (a = b, true) : false; } struct IOSetup { IOSetup() { cin.tie(nullptr); ios_base::sync_with_stdio(false); cout << fixed << setprecision(20); } } iosetup; using CostType = int; struct Edge { int src, dst; CostType cost; Edge(int src, int dst, CostType cost = 0) : src(src), dst(dst), cost(cost) {} inline bool operator<(const Edge &x) const { return cost != x.cost ? cost < x.cost : dst != x.dst ? dst < x.dst : src < x.src; } inline bool operator<=(const Edge &x) const { return !(x < *this); } inline bool operator>(const Edge &x) const { return x < *this; } inline bool operator>=(const Edge &x) const { return !(*this < x); } }; struct LCADoubling { vector<int> depth; vector<CostType> dist; LCADoubling(const vector<vector<Edge>> &graph) : graph(graph) { n = graph.size(); depth.resize(n); dist.resize(n); while ((1 << table_h) <= n) ++table_h; parent.resize(table_h, vector<int>(n)); } void build(int root = 0) { dfs(-1, root, 0, 0); for (int i = 0; i + 1 < table_h; ++i) REP(ver, n) { parent[i + 1][ver] = (parent[i][ver] == -1 ? -1 : parent[i][parent[i][ver]]); } } int query(int u, int v) { if (depth[u] > depth[v]) swap(u, v); REP(i, table_h) { if ((depth[v] - depth[u]) >> i & 1) v = parent[i][v]; } if (u == v) return u; for (int i = table_h - 1; i >= 0; --i) { if (parent[i][u] != parent[i][v]) { u = parent[i][u]; v = parent[i][v]; } } return parent[0][u]; } CostType distance(int u, int v) { return dist[u] + dist[v] - dist[query(u, v)] * 2; } private: int n, table_h = 1; vector<vector<Edge>> graph; vector<vector<int>> parent; void dfs(int par, int ver, int now_depth, CostType now_dist) { depth[ver] = now_depth; dist[ver] = now_dist; parent[0][ver] = par; for (const Edge &e : graph[ver]) { if (e.dst != par) dfs(ver, e.dst, now_depth + 1, now_dist + e.cost); } } }; template <typename Monoid> struct SegmentTree { using Fn = function<Monoid(Monoid, Monoid)>; SegmentTree(int sz, Fn fn, const Monoid UNITY) : fn(fn), UNITY(UNITY) { init(sz); dat.assign(n << 1, UNITY); } SegmentTree(const vector<Monoid> &a, Fn fn, const Monoid UNITY) : fn(fn), UNITY(UNITY) { int a_sz = a.size(); init(a_sz); dat.resize(n << 1); REP(i, a_sz) dat[i + n] = a[i]; for (int i = n - 1; i > 0; --i) dat[i] = fn(dat[i << 1], dat[(i << 1) + 1]); } void update(int node, Monoid val) { node += n; dat[node] = val; while (node >>= 1) dat[node] = fn(dat[node << 1], dat[(node << 1) + 1]); } Monoid query(int left, int right) { Monoid l_res = UNITY, r_res = UNITY; for (left += n, right += n; left < right; left >>= 1, right >>= 1) { if (left & 1) l_res = fn(l_res, dat[left++]); if (right & 1) r_res = fn(dat[--right], r_res); } return fn(l_res, r_res); } Monoid operator[](const int idx) const { return dat[idx + n]; } private: int n = 1; Fn fn; const Monoid UNITY; vector<Monoid> dat; void init(int sz) { while (n < sz) n <<= 1; } }; int main() { int n, k, q; cin >> n >> k >> q; vector<int> c(n), a(k); REP(i, n) cin >> c[i]; REP(i, k) cin >> a[i], --a[i]; // REP(i, k) cout << a[i] << " \n"[i + 1 == k]; vector<vector<Edge>> graph(n); REP(_, n - 1) { int e, f; cin >> e >> f; --e; --f; graph[f].emplace_back(f, e, 1); } LCADoubling lca(graph); lca.build(0); SegmentTree<int> seg(a, [&](int l, int r) { if (l == -1) return r; if (r == -1) return l; return lca.query(l, r); }, -1); vector<int> dp(n, 0); function<void(int)> dfs = [&](int ver) { chmax(dp[ver], c[ver]); for (const Edge &e : graph[ver]) { chmax(dp[e.dst], dp[ver]); dfs(e.dst); } }; dfs(0); while (q--) { int t; cin >> t; if (t == 1) { int x, y; cin >> x >> y; --x; --y; seg.update(x, y); } else if (t == 2) { int l, r; cin >> l >> r; --l; --r; cout << dp[seg.query(l, r + 1)] << '\n'; } } return 0; }