test/yosupo/cycle_detection_undirected.test.cpp

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Last update: 2024-08-25 02:56:03+09:00
Problem: https://judge.yosupo.jp/problem/cycle_detection_undirected

Depends on

Cycle Detection (Undirected) (src/graph/UndirectedCycleDetection.hpp)

Code

#define PROBLEM "https://judge.yosupo.jp/problem/cycle_detection_undirected"

#include <iostream>
#include "graph/UndirectedCycleDetection.hpp"

int main() {
    std::ios::sync_with_stdio(false);
    std::cin.tie(nullptr);
    int N, M;
    std::cin >> N >> M;
    UndirectedCycleDetection G(N);
    for (; M--;) {
        int u, v;
        std::cin >> u >> v;
        G.add_edge(u, v);
    }

    auto [vs, es] = G.build();
    if (vs.empty()) {
        std::cout << -1 << '\n';
        return 0;
    }
    int L = vs.size();
    assert(int(es.size()) == L);
    std::cout << L << "\n";
    for (int i = 0; i < L; i++) std::cout << vs[i] << (i + 1 == L ? "\n" : " ");
    for (int i = 0; i < L; i++) std::cout << es[i] << (i + 1 == L ? "\n" : " ");
    return 0;
}

Traceback (most recent call last):
  File "/opt/hostedtoolcache/Python/3.13.3/x64/lib/python3.13/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 "/opt/hostedtoolcache/Python/3.13.3/x64/lib/python3.13/site-packages/onlinejudge_verify/languages/cplusplus.py", line 187, in bundle
    bundler.update(path)
    ~~~~~~~~~~~~~~^^^^^^
  File "/opt/hostedtoolcache/Python/3.13.3/x64/lib/python3.13/site-packages/onlinejudge_verify/languages/cplusplus_bundle.py", line 401, in update
    self.update(self._resolve(pathlib.Path(included), included_from=path))
                ~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/hostedtoolcache/Python/3.13.3/x64/lib/python3.13/site-packages/onlinejudge_verify/languages/cplusplus_bundle.py", line 260, in _resolve
    raise BundleErrorAt(path, -1, "no such header")
onlinejudge_verify.languages.cplusplus_bundle.BundleErrorAt: graph/UndirectedCycleDetection.hpp: line -1: no such header