test/cpv/aizu-grl/grl_5_d.cpp
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|---|---|---|---|
| 1 | // competitive-verifier: PROBLEM https://onlinejudge.u-aizu.ac.jp/courses/library/5/GRL/all/GRL_5_D | ||
| 2 | #include "../../../src/graph/ds/alist/lib.hpp" | ||
| 3 | #include "../../../src/io/fastin/lib.hpp" | ||
| 4 | #include "../../../src/io/fastout/lib.hpp" | ||
| 5 | #include "../../../src/tree/hld/lib.hpp" | ||
| 6 | |||
| 7 | using namespace tifa_libs; | ||
| 8 | using T = std::pair<i64, i32>; | ||
| 9 | using F = i64; | ||
| 10 | using tree_t = tree<alist<>>; | ||
| 11 | |||
| 12 | 34193485 | T op(T a, T b) { return T{a.first + b.first, a.second + b.second}; } | |
| 13 | 1217628 | void mapping(T& a, F f) { a.first += f; } | |
| 14 | ✗ | void composition(F& f, F g) { f += g; } | |
| 15 | |||
| 16 | 36 | int main() { | |
| 17 | u32 n, q; | ||
| 18 | 36 | fin_uint >> n; | |
| 19 |
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36 | vecii b(n, 0); |
| 20 |
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36 | vec<T> a(n); |
| 21 | 36 | tree_t tr_(n); | |
| 22 |
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915003 | for (u32 u = 0, k; u < n; ++u) { |
| 23 | 914967 | fin_uint >> k; | |
| 24 |
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1829898 | for (u32 i = 0, v; i < k; ++i) fin_uint >> v, tr_.add_edge(u, v); |
| 25 | } | ||
| 26 | 36 | hld<tree_t, T, op, F, mapping, composition> tr({0, 0}, 0, tr_); | |
| 27 |
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915003 | flt_ (u32, i, 0, n) a[tr.info.dfn[i]].first = b[i], a[tr.info.dfn[i]].second = 1; |
| 28 | 36 | tr.build(a); | |
| 29 | 36 | fin_uint >> q; | |
| 30 |
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2636125 | for (u32 i = 0, opt, u; i < q; ++i) { |
| 31 | 2636089 | fin_uint >> opt >> u; | |
| 32 |
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2636089 | if (opt == 0) { |
| 33 | i64 x; | ||
| 34 | 1217628 | fin_uint >> x; | |
| 35 | 1217628 | tr.node_update((u32)u, x); | |
| 36 | } else { | ||
| 37 | 1418461 | fout << tr.chain_query((u32)u, 0).first << '\n'; | |
| 38 | } | ||
| 39 | } | ||
| 40 | 36 | return 0; | |
| 41 | 36 | } | |
| 42 |