library/Scc_graph_test.java

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• Last update: 2023-03-25 01:16:43+09:00
• Problem: https://judge.u-aizu.ac.jp/onlinejudge/description.jsp?id=0366

Depends on

• library/AbstractGraph.java
• library/Scc.java
• library/Solver.java

Code

// verification-helper: PROBLEM https://judge.u-aizu.ac.jp/onlinejudge/description.jsp?id=0366

package library;

import library.Solver;
import library.AbstractGraph;
import library.Scc;

public class Scc_graph_test extends Solver {
	public static void main(final String[] args) { main(args, new Scc_graph_test()); }

	public void solve() {
		int n = ni();
		int m = ni();
		var g = new UnweightedListGraph(n, true);
		for(int i = 0; i < m; i ++) g.add(ni(), ni());
		var contracted = Scc.calGraph(g);
		int leaf = 0;
		for(UnweightedNode node : contracted.nodes()) if(node.size() == 0) leaf ++;
		int root = 0;
		for(UnweightedNode node : contracted.reverseNodes()) if(node.size() == 0) root ++;
		prtln(contracted.numNode == 1 ? 0 : max(root, leaf));
	}
}

Traceback (most recent call last):
  File "/opt/hostedtoolcache/Python/3.11.2/x64/lib/python3.11/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/3.11.2/x64/lib/python3.11/site-packages/onlinejudge_verify/languages/user_defined.py", line 71, in bundle
    return subprocess.check_output(shlex.split(command))
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/hostedtoolcache/Python/3.11.2/x64/lib/python3.11/subprocess.py", line 466, in check_output
    return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/opt/hostedtoolcache/Python/3.11.2/x64/lib/python3.11/subprocess.py", line 571, in run
    raise CalledProcessError(retcode, process.args,
subprocess.CalledProcessError: Command '['false']' returned non-zero exit status 1.

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