test/cpv/library-checker-graph/chordal_graph_recognition.cpp
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|---|---|---|---|
| 1 | // competitive-verifier: PROBLEM https://judge.yosupo.jp/problem/chordal_graph_recognition/ | ||
| 2 | #include "../../../src/graph/chordal/lib.hpp" | ||
| 3 | #include "../../../src/graph/ds/alist/lib.hpp" | ||
| 4 | #include "../../../src/io/container/lib.hpp" | ||
| 5 | |||
| 6 | using namespace tifa_libs; | ||
| 7 | 22 | int main() { | |
| 8 |
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22 | std::cin.tie(nullptr)->std::ios::sync_with_stdio(false); |
| 9 | u32 n, m; | ||
| 10 |
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22 | std::cin >> n >> m; |
| 11 | 22 | alist g(n); | |
| 12 |
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3597646 | for (u32 i = 0, u, v; i < m; ++i) { |
| 13 |
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3597624 | std::cin >> u >> v; |
| 14 | 3597624 | g.add_arc(u, v); | |
| 15 | 3597624 | g.add_arc(v, u); | |
| 16 | } | ||
| 17 |
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2102589 | flt_ (u32, i, 0, n) std::ranges::sort(g[i]); |
| 18 | 22 | chordal chd(g); | |
| 19 |
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22 | if (auto res = chd.template is_chordal_graph<true>(); res) std::cout << "NO\n" |
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12 | << res->size() << '\n' |
| 21 |
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12 | << res.value() << '\n'; |
| 22 | else std::cout << "YES\n" | ||
| 23 |
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22 | << chd.peo << '\n'; |
| 24 | 22 | return 0; | |
| 25 | 22 | } | |
| 26 |