test/yosupo/two_edge_connected_components.test.cpp

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Last update: 2023-01-12 22:28:24+09:00
Problem: https://judge.yosupo.jp/problem/two_edge_connected_components

Depends on

LowLink (with Two Edge Connected Components, Bi Connected Components) (src/graph/LowLink.hpp)

Code

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

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

int main() {
    std::cin.tie(0);
    std::ios::sync_with_stdio(false);
    int N, M;
    std::cin >> N >> M;
    LowLink G(N);
    for (; M--;) {
        int a, b;
        std::cin >> a >> b;
        G.add_edge(a, b);
    }

    G.build();
    auto& tecc = G.tecc;
    int K = G.t;
    std::vector<std::vector<int>> ans(K);
    for (int i = 0; i < N; i++) ans[tecc[i]].emplace_back(i);
    std::cout << K << '\n';
    for (int i = 0; i < K; i++) {
        std::cout << ans[i].size();
        for (int& v : ans[i]) std::cout << ' ' << v;
        std::cout << '\n';
    }
}

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/LowLink.hpp: line -1: no such header