結果
問題 | No.1030 だんしんぐぱーりない |
ユーザー | KoD |
提出日時 | 2020-04-17 23:01:06 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 380 ms / 2,000 ms |
コード長 | 6,232 bytes |
コンパイル時間 | 767 ms |
コンパイル使用メモリ | 85,404 KB |
実行使用メモリ | 18,808 KB |
最終ジャッジ日時 | 2024-10-03 14:56:39 |
合計ジャッジ時間 | 11,418 ms |
ジャッジサーバーID (参考情報) |
judge3 / 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 | 3 ms
6,980 KB |
testcase_03 | AC | 2 ms
6,816 KB |
testcase_04 | AC | 2 ms
6,820 KB |
testcase_05 | AC | 268 ms
16,768 KB |
testcase_06 | AC | 232 ms
15,560 KB |
testcase_07 | AC | 166 ms
10,044 KB |
testcase_08 | AC | 167 ms
11,308 KB |
testcase_09 | AC | 224 ms
18,248 KB |
testcase_10 | AC | 118 ms
8,652 KB |
testcase_11 | AC | 259 ms
11,820 KB |
testcase_12 | AC | 236 ms
16,584 KB |
testcase_13 | AC | 204 ms
15,856 KB |
testcase_14 | AC | 295 ms
15,112 KB |
testcase_15 | AC | 161 ms
7,292 KB |
testcase_16 | AC | 255 ms
13,672 KB |
testcase_17 | AC | 222 ms
17,436 KB |
testcase_18 | AC | 310 ms
17,572 KB |
testcase_19 | AC | 181 ms
10,044 KB |
testcase_20 | AC | 203 ms
13,628 KB |
testcase_21 | AC | 191 ms
15,104 KB |
testcase_22 | AC | 199 ms
12,484 KB |
testcase_23 | AC | 248 ms
12,316 KB |
testcase_24 | AC | 209 ms
9,600 KB |
testcase_25 | AC | 234 ms
12,272 KB |
testcase_26 | AC | 165 ms
6,928 KB |
testcase_27 | AC | 190 ms
7,944 KB |
testcase_28 | AC | 272 ms
13,816 KB |
testcase_29 | AC | 172 ms
16,052 KB |
testcase_30 | AC | 179 ms
12,556 KB |
testcase_31 | AC | 192 ms
12,984 KB |
testcase_32 | AC | 250 ms
14,364 KB |
testcase_33 | AC | 245 ms
15,948 KB |
testcase_34 | AC | 118 ms
8,488 KB |
testcase_35 | AC | 379 ms
18,796 KB |
testcase_36 | AC | 367 ms
18,808 KB |
testcase_37 | AC | 371 ms
18,780 KB |
testcase_38 | AC | 380 ms
18,752 KB |
testcase_39 | AC | 380 ms
18,752 KB |
testcase_40 | AC | 2 ms
6,820 KB |
testcase_41 | AC | 2 ms
6,816 KB |
ソースコード
#include <iostream> #include <algorithm> #include <utility> #include <vector> #include <numeric> template <class T, class U> inline bool chmin(T &lhs, const U &rhs) { if (lhs > rhs) { lhs = rhs; return true; } return false; } template <class T, class U> inline bool chmax(T &lhs, const U &rhs) { if (lhs < rhs) { lhs = rhs; return true; } return false; } // [l, r) from l to r struct range { struct itr { int i; constexpr itr(int i_): i(i_) { } constexpr void operator ++ () { ++i; } constexpr int operator * () const { return i; } constexpr bool operator != (itr x) const { return i != x.i; } }; const itr l, r; constexpr range(int l_, int r_): l(l_), r(std::max(l_, r_)) { } constexpr itr begin() const { return l; } constexpr itr end() const { return r; } }; // [l, r) from r to l struct revrange { struct itr { int i; constexpr itr(int i_): i(i_) { } constexpr void operator ++ () { --i; } constexpr int operator * () const { return i; } constexpr bool operator != (itr x) const { return i != x.i; } }; const itr l, r; constexpr revrange(int l_, int r_): l(l_ - 1), r(std::max(l_, r_) - 1) { } constexpr itr begin() const { return r; } constexpr itr end() const { return l; } }; constexpr int mx = 100000; int depth[mx]; int parent[mx][20]; std::vector<int> graph[mx]; void dfs(int u, int p) { if (p == -1) { depth[u] = 0; parent[u][0] = u; } else { depth[u] = depth[p] + 1; parent[u][0] = p; } for (int v: graph[u]) { if (v != p) { dfs(v, u); } } } inline int lca(int u, int v) { if (depth[u] > depth[v]) { std::swap(u, v); } int dif = depth[v] - depth[u]; for (int j: range(0, 20)) { if (dif & 1) { v = parent[v][j]; } dif >>= 1; } if (u == v) { return u; } for (int j: revrange(0, 20)) { if (parent[u][j] != parent[v][j]) { u = parent[u][j]; v = parent[v][j]; } } return parent[u][0]; } template <class T> class segment_tree { public: using value_type = typename T::value_type; using effector_type = typename T::effector_type; using value_operation = typename T::value_operation; using merge_operation = typename T::merge_operation; private: int size; const value_operation op1; const merge_operation op2; std::vector<value_type> node; void update() { for (int k = size - 1; k > 0; --k) { node[k] = op1(node[k << 1 | 0], node[k << 1 | 1]); } } public: segment_tree(): op1(value_operation()), op2(merge_operation()) { } segment_tree(int size_, const value_type &initial_ = value_operation().identity): op1(value_operation()), op2(merge_operation()) { init(size_, initial_); } segment_tree(const std::vector<value_type> &node_): op1(value_operation()), op2(merge_operation()) { build(node_); } void init(int size_, const value_type &initial_ = value_operation().identity) { size = 1; while (size < size_) { size <<= 1; } node.assign(size << 1, initial_); update(); } void build(const std::vector<value_type> &node_) { init(node_.size()); assign(node_.begin(), node_.end(), 0); } void modify(int i, const effector_type &x) { i += size; node[i] = op2(node[i], x); while (i > 1) { i >>= 1; node[i] = op1(node[i << 1 | 0], node[i << 1 | 1]); } } template <class U> void modify(U begin, U end, int i) { i += size; while (begin != end) { node[i] = op2(node[i], *begin); ++i; ++begin; } update(); } void assign(int i, const value_type &x) { i += size; node[i] = x; while (i > 1) { i >>= 1; node[i] = op1(node[i << 1 | 0], node[i << 1 | 1]); } } template <class U> void assign(U begin, U end, int i) { i += size; while (begin != end) { node[i] = *begin; ++i; ++begin; } update(); } value_type operator [] (int i) const { return node[i + size]; } value_type fold(int l, int r) const { l += size; r += size; value_type resl = op1.identity; value_type resr = op1.identity; while (l < r) { if (l & 1) { resl = op1(resl, node[l++]); } if (r & 1) { resr = op1(node[--r], resr); } l >>= 1; r >>= 1; } return op1(resl, resr); } }; template <class T> struct fix_point: private T { explicit constexpr fix_point(T &&func): T(std::forward<T>(func)) { } template <class... Args> constexpr decltype(auto) operator () (Args &&... args) const { return T::operator()(*this, std::forward<Args>(args)...); } }; int main() { int N, K, Q; std::cin >> N >> K >> Q; std::vector<int> vivace(N); for (int &x: vivace) { std::cin >> x; } std::vector<int> lives(K); for (int &x: lives) { std::cin >> x; --x; } for (int i: range(0, N - 1)) { int a, b; std::cin >> a >> b; --a; --b; graph[a].push_back(b); graph[b].push_back(a); } dfs(0, -1); for (int j: range(0, 19)) { for (int i: range(0, N)) { parent[i][j + 1] = parent[parent[i][j]][j]; } } struct monoid { using value_type = int; using effector_type = int; struct value_operation { value_type identity = -1; value_type operator () (const value_type &i, const value_type &j) const { if (i == identity) return j; if (j == identity) return i; return lca(i, j); } }; struct merge_operation { value_type operator () (const value_type &i, const effector_type &j) const { return j; } }; }; segment_tree<monoid> seg(K); for (int i: range(0, K)) { seg.assign(i, lives[i]); } fix_point([&](auto yay, int u, int p) -> void { if (p != -1) { chmax(vivace[u], vivace[p]); } for (int v: graph[u]) { if (v != p) { yay(v, u); } } })(0, -1); while (Q--) { int type; std::cin >> type; if (type == 1) { int x, y; std::cin >> x >> y; --x; --y; seg.assign(x, y); } else { int l, r; std::cin >> l >> r; --l; std::cout << vivace[seg.fold(l, r)] << '\n'; } } return 0; }