木 - 木の同型性判定のテスト
(tests/graph.tree.tree_isomorphism.test.cpp)

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• Last update: 2026-01-21 19:52:16+09:00
• Problem: https://judge.u-aizu.ac.jp/onlinejudge/description.jsp?id=2821

Depends on

• 辺 (library/graph/base/edge.hpp)
• グラフ (library/graph/base/graph.hpp)
• 木の重心 (library/graph/tree/centroid.hpp)
• 木の同型性判定 (library/graph/tree/tree_isomorphism.hpp)
• UnionFind 素集合データ構造 (library/various/union_find.hpp)
• テンプレート (template/template.hpp)

Code

#define PROBLEM "https://judge.u-aizu.ac.jp/onlinejudge/description.jsp?id=2821"
#include "template/template.hpp"
#include "library/graph/tree/tree_isomorphism.hpp"
#include "library/various/union_find.hpp"
/**
 * @brief 木 - 木の同型性判定のテスト
 */
void solve() {
    int N, M;
    cin >> N >> M;
    vector<int> U(M), V(M);
    UnionFind uf(N);
    for (int i = 0; i < M; ++i) {
        cin >> U[i] >> V[i];
        --U[i], --V[i];
        uf.unite(U[i], V[i]);
    }
    vector<vector<int>> belong_v(N), belong_e(N);
    for (int i = 0; i < N; ++i) {
        belong_v[uf.find(i)].emplace_back(i);
    }
    for (int i = 0; i < M; ++i) {
        belong_e[uf.find(U[i])].emplace_back(i);
    }
    cin >> N;
    Graph t(N);
    t.read(N - 1);
    int ret = 0;
    vector<int> id(belong_v.size());
    for (int i = 0; i < (int)belong_v.size(); ++i) {
        if (uf.find(i) == i) {
            Graph g(belong_v[i].size());
            int ptr = 0;
            for (auto &p : belong_v[i]) id[p] = ptr++;
            for (auto &j : belong_e[i]) {
                g.add_both(id[U[j]], id[V[j]]);
            }
            ret += tree_isomorphism(t, g);
        }
    }
    print(ret);
}

Traceback (most recent call last):
  File "/home/runner/.local/lib/python3.12/site-packages/onlinejudge_verify/documentation/build.py", line 71, in _render_source_code_stat
    bundled_code = language.bundle(stat.path, basedir=basedir, options={'include_paths': [basedir]}).decode()
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/runner/.local/lib/python3.12/site-packages/onlinejudge_verify/languages/cplusplus.py", line 187, in bundle
    bundler.update(path)
  File "/home/runner/.local/lib/python3.12/site-packages/onlinejudge_verify/languages/cplusplus_bundle.py", line 401, in update
    self.update(self._resolve(pathlib.Path(included), included_from=path))
  File "/home/runner/.local/lib/python3.12/site-packages/onlinejudge_verify/languages/cplusplus_bundle.py", line 400, in update
    raise BundleErrorAt(path, i + 1, "unable to process #include in #if / #ifdef / #ifndef other than include guards")
onlinejudge_verify.languages.cplusplus_bundle.BundleErrorAt: template/template.hpp: line 7: unable to process #include in #if / #ifdef / #ifndef other than include guards

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