test/yosupo/tree/vertex_add_path_sum.test.cpp

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• Last update: 2026-03-15 18:07:20+09:00
• Problem: https://judge.yosupo.jp/problem/vertex_add_path_sum

Depends on

• フェニック木 (lib/binary_tree/fenwick_tree.hpp)
• 重み付きグラフ (lib/graph/graph.hpp)
• lib/internal/internal_csr.hpp
• HL分解 (lib/tree/hld.hpp)

Code

// competitive-verifier: PROBLEM https://judge.yosupo.jp/problem/vertex_add_path_sum
#include <cstdint>
#include <iostream>
#include <vector>
#include "binary_tree/fenwick_tree.hpp"
#include "tree/hld.hpp"

int main(void) {
    int n, q;
    std::cin >> n >> q;
    std::vector<int> a(n);
    for (auto &e : a) std::cin >> e;
    Graph<void> g(n);
    g.input_edges(n - 1, 0);
    heavy_light_decomposition hld(g);
    fenwick_tree<std::int64_t> ft(n);
    for (int i = 0; i < n; ++i) ft.add(hld.get(i), a[i]);

    while (q--) {
        int c;
        std::cin >> c;
        if (c == 0) {
            int p, x;
            std::cin >> p >> x;
            ft.add(hld.get(p), x);
        } else {
            int u, v;
            std::cin >> u >> v;
            std::int64_t ans = 0;
            auto f = [&](int u, int v) { ans += ft.sum(u, v); };
            hld.for_each(u, v, f);
            std::cout << ans << '\n';
        }
    }

    return 0;
}

Traceback (most recent call last):
  File "/home/runner/.local/lib/python3.12/site-packages/competitive_verifier/oj/resolver.py", line 291, in resolve
    bundled_code = language.bundle(path, basedir=basedir)
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/runner/.local/lib/python3.12/site-packages/competitive_verifier/oj/verify/languages/cplusplus.py", line 242, in bundle
    bundler.update(path)
  File "/home/runner/.local/lib/python3.12/site-packages/competitive_verifier/oj/verify/languages/cplusplus_bundle.py", line 479, in update
    self._resolve(pathlib.Path(included), included_from=path)
  File "/home/runner/.local/lib/python3.12/site-packages/competitive_verifier/oj/verify/languages/cplusplus_bundle.py", line 286, in _resolve
    raise BundleErrorAt(path, -1, "no such header")
competitive_verifier.oj.verify.languages.cplusplus_bundle.BundleErrorAt: binary_tree/fenwick_tree.hpp: line -1: no such header

Test cases

Env	Name	Status	Elapsed	Memory
g++	almost_line_00	AC	1423 ms	48 MB
g++	almost_line_01	AC	1475 ms	48 MB
g++	example_00	AC	3 ms	3 MB
g++	line_00	AC	1335 ms	46 MB
g++	line_01	AC	1401 ms	46 MB
g++	long-path-decomposition_killer_00	AC	1316 ms	46 MB
g++	max_random_00	AC	1607 ms	49 MB
g++	max_random_01	AC	1678 ms	49 MB
g++	max_random_02	AC	1594 ms	49 MB
g++	random_00	AC	1233 ms	39 MB
g++	random_01	AC	1491 ms	46 MB
g++	random_02	AC	631 ms	8 MB
g++	random_03	AC	631 ms	43 MB
g++	random_04	AC	562 ms	29 MB
g++	small_00	AC	3 ms	4 MB
g++	small_01	AC	3 ms	4 MB
g++	small_02	AC	3 ms	4 MB
g++	small_03	AC	3 ms	3 MB
g++	small_04	AC	4 ms	4 MB

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