グラフ - 閉路検出のテスト
(tests/graph.cycle_detect.test.cpp)

• View this file on GitHub
• Last update: 2026-01-21 11:49:22+09:00
• Problem: https://judge.yosupo.jp/problem/cycle_detection

Depends on

• 辺 (library/graph/base/edge.hpp)
• グラフ (library/graph/base/graph.hpp)
• 閉路検出 (library/graph/cycle_detect.hpp)
• テンプレート (template/template.hpp)

Code

#define PROBLEM "https://judge.yosupo.jp/problem/cycle_detection"
#include "template/template.hpp"
#include "library/graph/cycle_detect.hpp"
/**
 * @brief グラフ - 閉路検出のテスト
 */
void solve() {
    int N, M;
    cin >> N >> M;
    Graph G(N);
    G.read(M, 0, false, true);
    vector<Edge> cyc = cycle_detect(G);
    if (cyc.empty()) {
        print(-1);
        return;
    }
    print(cyc.size());
    for (auto &&e : cyc) {
        print(e.idx);
    }
}

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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