add an internal method LibraryCheckerProblem.download_checker_cpp() #624
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judge.yosupo.jp は常に
checker.cpp
を用いた special judge 形式になっています (online-judge-tools/verification-helper#1 (comment)) が、このchecker.cpp
を取得できるようにします。オプションとか別コマンドとかを作るとなると仕様を検討したくなってしまう (「yukicoder も special judge がありますが……」など) ので、とりあえず内部メソッドだけにしておきます。
たとえば
python3 -c 'import onlinejudge, sys ; sys.stdout.buffer.write(onlinejudge.dispatch.problem_from_url("https://judge.yosupo.jp/problem/unionfind").download_checker_cpp())'
などとします。