Strongly Connected Components (verify/graph/scc.test.cpp)

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• Last update: 2025-12-12 22:29:00+01:00
• Problem: https://judge.yosupo.jp/problem/scc

Depends on

• cp-algo/graph/base.hpp
• cp-algo/graph/concepts.hpp
• cp-algo/graph/dfs.hpp
• cp-algo/graph/dfs_time.hpp
• cp-algo/graph/edge_types.hpp
• cp-algo/graph/tarjan.hpp
• cp-algo/structures/csr.hpp
• cp-algo/structures/stack_union.hpp
• cp-algo/util/big_alloc.hpp

Code

// @brief Strongly Connected Components
#define PROBLEM "https://judge.yosupo.jp/problem/scc"
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2")
#include <iostream>
//#include "blazingio/blazingio.min.hpp"
#include "cp-algo/graph/tarjan.hpp"
#include <bits/stdc++.h>

using namespace std;
using namespace cp_algo::graph;

void solve() {
    int n, m;
    cin >> n >> m;
    digraph g(n);
    g.read_edges(m);
    auto comps = strongly_connected_components(g);
    cout << size(comps) << '\n';
    for(auto const& comp: comps.rows() | views::reverse) {
        cout << size(comp) << ' ';
        for(auto v: comp) {
            cout << v << ' ';
        }
        cout << '\n';
    }
}

signed main() {
    //freopen("input.txt", "r", stdin);
    ios::sync_with_stdio(0);
    cin.tie(0);
    int t = 1;
    //cin >> t;
    while(t--) {
        solve();
    }
}

Traceback (most recent call last):
  File "/home/runner/.local/lib/python3.12/site-packages/competitive_verifier/oj_resolve/resolver.py", line 181, in resolve
    bundled_code = language.bundle(path, basedir=basedir)
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/runner/.local/lib/python3.12/site-packages/competitive_verifier/oj/verify/languages/cplusplus.py", line 252, in bundle
    bundler.update(path)
  File "/home/runner/.local/lib/python3.12/site-packages/competitive_verifier/oj/verify/languages/cplusplus_bundle.py", line 327, in update
    assert len(lines) == len(uncommented_lines)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError

Test cases

Env	Name	Status	Elapsed	Memory
g++	example_00	AC	5 ms	4 MB
g++	large_cycle_00	AC	101 ms	25 MB
g++	max_random_00	AC	170 ms	26 MB
g++	max_random_01	AC	156 ms	26 MB
g++	max_random_02	AC	157 ms	26 MB
g++	max_random_03	AC	156 ms	26 MB
g++	max_random_04	AC	158 ms	26 MB
g++	random_00	AC	129 ms	23 MB
g++	random_01	AC	142 ms	24 MB
g++	random_02	AC	61 ms	13 MB
g++	random_03	AC	57 ms	15 MB
g++	random_04	AC	55 ms	14 MB

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